In 1984, this scooter made its debut in the form of the Elite 125 (CH125). It is a more expensive carb and has the same great throttle response but is a little more fickle when it comes to tuning and the jetting only comes in Mikuni specific sizes. This features is great because it offers excellent throttle response and power control. Warm Up the SCOOT for at least 5 minutes. Would appreciate any information. Small changes in the tab angle will equal out to big changes in the overall float level once reassembled. Turn the Fuel Ratio Screw Counter Clockwise 1/4 and wait 10-15 seconds to allow the engine to catch up with the new setting. ASSEMBLY INSTRUCTIONS - RT50-R Retro . That will give us a place to start. For very dusty and dirty off road conditions on go kart applications, an oiled Uni foam filter is probably the best way to go. These may be included in some mod kits for gas scooters and go karts, or you can often buy one by itself. This guide to tuning a carburetor will explain how to correctly adjust the gas/air mixture. Here are 5 ways to find the answers you need: Check out our Repair FAQs below Scan the questions/answers on this page Scan the older repair questions/answers in our archives Search our question/answer database: Ask your unique question using the form below Common Questions About Scooter Repair & Maintenance One is coming from the very back of the motor and has a fairly long hose on it, about .5 in thickness. Carburetor description: PD24J Manual choke It comes standard with a CVK style carburetor usually in a 24mm or 26mm intake size. Thanks for this layout Travis, appreciate it sir. We also carry parts for the Punisher 150cc models. Camshaft - For better climbing power, use low-end torque. For carburetors that are severely gummed up we use compressed air @ 120psi to clean the passages. The most common float-related problem is that the float level is set too high from the factory. Racing Performance Exhaust - An exhaust system upgrade can yield a big improvement in performance as long as the additional flow is combined with properly tuned carburetor. Find a place roughly halfway between those rough idles as your ideal adjustment. Anything not listed can be left hanging. There are measurements you can also use but that is the "seat of the pants . Of course, more power would always be nice, but considering the small displacement of this GY6 based 150cc engine, it really is impressive. When the engine is cold the automatic choke is in operation and that can change the idle speed. If you have any experience with old carbureted cars, motorcycles, etc you will understand how much weather can affect how a carburetor runs. 150cc 3-wire Ignition Switch Pinout (Crossfire 150 and 150R), BDX Heavy Duty GY6 Mount for Ruckus Installation Guide, GY6 Carburetor Float Level Adjustment Guide. In that case, use a single strand of copper from an electrical wire to clean out the blockage. Repeat steps 2-4 until you feel the bog of a lean condition, stop going faster or start going slower. The popular GY6 150cc motor that is swapped into Honda Ruckuses and found in many common Chinese scooters is a carburetor operated engine. If the RPMs go up, repeat step 1 in turn increments until the RPMs begin to drop. LED Lights - By using these LED lights, you are conserving battery usage. 3) IDLE SPEED ADJUSTMENT: https://www.buggydepot.com/model/15/1/tomberlin-crossfire-150r-parts.html, https://www.buggydepot.com/model/14/1/crossfire-150-parts.html. Racing Clutch & Bell - If you are going to upgrade the springs (available in 1000 lbs, 1500 lbs, and 2000 lbs), torque spring (1500 lbs), and roller weights,
The spray should dissolve and remove any blockages caused by old gasoline. Scooter Dynasty, LLC is an authorized Hyosung, TGB, Kymco, SYM, Lance, SSR, and Genuine dealer. Find the correct side of the mirror connector. In addition to the front driver pulley, the rear driver pulley can also be recalibrated with different clutch shoe springs to vary clutch engagement RPM, and also the main driven compression spring can be changed to a stiffer spring which also effectively boosts engine RPM under driving conditions. Here are the right links: Parts for grey Crossfire 150R: Click here for high performance spark plugs. I need to know what size are the main jets and what would be a good size to go up to? Best to error on the rich side (larger jet), because too small of a jet and you could run too lean and damage your engine. endstream
endobj
75 0 obj
<><><>]/OFF[]/Order[]/RBGroups[]>>/OCGs[110 0 R]>>/Pages 72 0 R/Type/Catalog>>
endobj
76 0 obj
<>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/Type/Page>>
endobj
77 0 obj
<>stream
If the valves are way out of adjustment or there isweak (or no) spark, no amount of carb tuning will make the engine run well. More air flow along with the appropriate amount of fuel will result in more power producing potential. The GY6 engine with CVT (continuously variable transmission) has decent performance for it's small 150cc engine displacement. See the troubleshooting section for more info about lean conditions. If it still won't start after that, it's time to clean or replace the carb. These are great carbs for big bore builds and are very easy to work with. It helps on some models if you have weak lights during idle. If it starts to go down, turn it back to get the maximum idle speed. This makes it possible to create the finest wire center electrode ever. Do Not Sell or Share My Personal Information, Locate the low and high RPM jets on the side of the carb - they are usually marked with a L and a H. Turn both jets completely. The information was collected from many skilled and experienced mechanics and technicians. Hey Anders, Check your spark plugs to see if you are running lean or rich under wide open throttle conditions. Ignition timing is when the spark plug fires relative to the position of the piston (and crankshaft/flywheel). a. Please read our ignition troubleshooting guide (link below), and reply in the comments section there with the voltages you saw at each step. Also, too high of an RPM can be annoying while cruising with low engine loads. "Maikuni" Carb. You can carefully drill this plug out, or just replace the whole carb with something better for about $25.00. Take the guesswork out of selecting the right-sized jets for your motorcycle or ATV. In fact, when we pulled it off and opened it, took all of the jets out and cleaned them anyway, it was clean, but still leaks gas when we run the ATV. This also translates to 80 to 100 kmh. Remove the float pin, push it through using a pointed tool. 1. If the carburetor is so far out of adjustment that the scooter won't start, turn the air/fuel mixture screw all the way in until it stops, then turn it back out about 2 turns as a baseline setting. The needle should be clearly visible. Spray carburetor cleaner through the three passages that are circled. Flip over your carburetor. If you can put a couple blocks under the engine to raise the rear wheel slightly off the ground, you can just adjust the idle speed until the engine is running smoothly, but the rear wheel doesnt turn until you give it a little bit of throttle. If someone were to put on a high flow intake filter and also a high flow exhaust, then you'd probably want to look closer to the 130 main jet size if you have the stock 24mm CV carb on a 150cc gy6 engine. My scooter will not start Make sure you have fuel getting to the carburetor. The pilot screw adjusts the fuel mixture when starting up from cold. The first is the adjustment of the idle speed. Because carburetors have a number of overlapping systems, each with its own adjustment range, tuning them to give the desired mixture over the engine's operating rpm is a step-by-step process. But flat or round slide carbs tend to be less complicated than CVK style carbs so they are easy to work on and tune. GY6 150cc Ignition Troubleshooting Guide: No Spark? Seeing as our 2 strokes rev so high, it only takes a few cycles of bad tuning to seize or render your rings useless. Sitemap|
Too high an RPM and you might be way out of your powerband. So you'll remember how it goes back together. Use in addition to coil, racing spark plug, magneto, and other items for maximum electrical performance. 0]$9>[FqX:oJCl-=0sLBd/)YhP X So, if you have a go kart, then check out the mod kits for gas scooters because many of the parts may work on your go kart applications. Before taking anything apart, be sure to drain the fuel from both the gas tank and the carburetors float bowl. I hope this help. Record your top speed, hum to yourself or otherwise document how fast you went. Let the engine idle and turn your pilot screw clockwise (or in) until the idle gets rough. 3. Try these two things if your Buddy is not running or hard to start.Parts Used: www.scooterwest.comBattery Part # YTX7A-BShttps://www.scooterwest.com/yuasa-ytx7a-bs-battery-buddy-people-150-ytx7a-bs.htmlFuel Line \u0026 Filter: GP65212010004https://www.scooterwest.com/buddy-125-150-with-iron-tank-fuel-filter-assembly-out-of-stock-with-genuine-08-30-17-01-59-13-jpc.htmlFuel Tap (Petcock): GP6523000000https://www.scooterwest.com/buddy-50-125-150-fuel-tap.html On most cars, you'll need to remove the air filter to expose the carburetor and adjust it. Close the low needle by turning it clockwise until a stable idle is achieved. So youll remember how it goes back together. Its a good idea to install a manual inline fuel shutoff valve between your tank and carburetor. Common areas for leaks are between the manifold and the cylinder, and between the carburetor and the intake manifold. 1) TO MAKE THE AIR/FUEL MIXTURE RICHER: The stock CVK style carb features a diaphragm needle valve that rises and lowers depending on vacuum pressure and allows fuel to enter the engine automatically. Sure, we can help figure out whats going on. If it does go out of adjustment lots of things can happen. The most troublesome piece is the longer pilot jet which has a very narrow internal passage. Mixture, Jetting adjustments and how the. remember on the bottom of all theses carbs is a drain, ether screw or nipple coverif the screw is not tight or the nipple cracks you will get a leek. They said my cdi was bad, then after that they said my coil was bad and spark plug.I paid $200. Where can you get parts for the Tomberlin 150cc. Fast enough so that the engine doesn't stumble or stall, but slow enough that the clutch doesn't engage and try to move the scooter forward. It is surprising how well of a job a small 150cc engine can do at moving an adult around on a scooter or even a heavy go kart. 2008 ScooterFocus.com |
Racing Performance Variator Kit - We recommend the 115mm diameter inner variator, spacer, and ramp cover either from Dr. GY6 150cc Ignition Troubleshooting Guide: No Spark? Click here for racing performance variator kits. you can only adjust the idle and air/fuel screw on these carbs. The scooter is running very poorly im on a fix income. If your engine idles but then slowly stops running, your low needle "L" is too far open. Flip it over and remove the four screws that fasten the float bowl. With that idea in mind, let's look at some ways that the performance of scooter engines can be increased. There is a lot to be said about CVT tuning, but to simplify many people can probably benefit from slightly lighter roller weights in the front driver pulley and also a stiffer torque (compression spring) in the rear driven pulley. The filter was crappy and let dirt by. Then you will have to attach some parts : Install Mirrors Without signal light Take out mirrors out of packaging. Click here for high performance carburetors. A popular and inexpensive flat slide carb and a Small Fast Things favorite is the OKO brand of flat slide carbs. If your engine bogs out when transitioning from low speed, the high needle "H" is too far closed. A lot of scooters and go karts are powered by a 150cc engine based on the Honda GY6 scooter engine design. Test Procedure. To ensure max performance and engine life, follow this procedure: While tuning by ear with freewheeling is relatively easy, it is not as accurate as tuning the scooter while you ride it. The instant you twist the throttle, the valve opens and starts letting fuel into the motor. If you have a 5-wire ignition switch (Blade, Kinroad, Twister Hammerhead, Carter Bros., etc), be sure to come back to the kart to turn your key back to the off position, or your battery could drain. The GY6 based engine found in these scooters and go karts is like most any other internal combustion engine - in that it can benefit from some well directed modifications. Adjusting the float level may fix that. The main difference between these styles carbs and the stock carb is the main slide. One method is to reposition the ignition pickup that is located next to the flywheel. I found mine on Ebay. High Performance Intake Manifold - Polished aluminum and a must if upgrading from a stock 24mm to a high performance 30mm carburetor. Lastly, it has an auto fuel enricher for easy starting. This Japanese manufactured, manual choke PD24J carburetor is the replacement part for many 4-stroke Chinese ATVs, Dirt Bikes, Go Karts and Scooters. When the engine is cold the automatic choke is in operation and that can change the idle speed. The buzzing of the RPM at all times can be annoying to some people. Yerf Dog, Crossfire, etc) dont have to worry about this. None of these things are good. https://teespring.com/stores/thejunkmanThanks to Matt @ How To Motorcycle repair for his contributionhttps://www.youtube.com/user/MatthewMCRepairMatt's FCR carburetor adjustment playlisthttps://www.youtube.com/playlist?list=PL82YKl1Zk5enJr9_FFAvLiG9wqK70n7xRSupport the for more videos! Proper performance gains can only be achieved with proper carb jetting and adjustment and is not a "one size fits all" solution. http://www.buggydepot.com/buggy-tech-center/read/150cc/0/9/howhit-150cc-gy6-vacuum-line-diagram.html, Thanks Travis. Click here for high performance exhausts. for nothing.Allso i notice the cut the coil wires, and put 2, yellow wires leading from the coil to the cdi,or to the stator wires. If the engine RPMs drop on the FIRST 1/4 turn from the starting point, turn the screw back to the starting position and wait 30 seconds until the engine responds, then go to #2. They come in a raw finish and a more sporty looking black in many different sizes from 24mm all the way up to 30mm. In total a 150cc scooter will go between 50 and 60 mph depending on the model. If it goes down, turn the screw back 1/8th turn to where it started, then 1/8 turn in the other direction and see if the idle speed goes up or down. We will not be held liable for the outcomes of your mod projects. We only had it 5 months and the carb went. GY6 Swapping The Honda Ruckus: What To Expect From Your Swap, How to use an American-made BDX wiring harness on your 150cc Chinese engine. Use a pointed tool to push out the . We've created an instant online tool to calculate the perfect jetting for your bike. hb```e``D@(q
,00p/Sd@OeI(NO|:CKtz+!s Instagram FeedPlease check your feed, the data was entered incorrectly. After that it would not start and driving lights, come on but go out. Make a speed run where you let the engine climb as high as it can in the RPM range. 1. Because your scooters and some go karts use a relatively small battery, it is vital that you reduce your electrical consumption since some of your other high performance gadgets will consume most of it. Most CVK carbs have the air/fuel mixture screw on the intake manifold side of the carburetor (toward the engine, away from the air filter). , blocked exhausts, and very heavy engine loading can also cause bogging. This would be considered a clone or knock off carb. The other one is a smaller hose that comes off the plastic body at the bottom, where you actually connect the carburetor to the housing with the hose clamp. It can make the scooter hard to start, it can make the scooter slow to accelerate, it can cause the scooter to idle badly and stall or it can make the scooter idle fast so that it's trying to go all the time and needs the brake to hold it stationary. Throttle body I am guessing. If you have any questions, please post them in the video comment section.Thanks For Watching! Which poles do I use and which wire goes on which pole. On most scooters from 50cc to 250cc, this will be somewhere in the 1500-2000rpm region. Adjust the screw until you reach the maximum idle speed with the engine running smoothly. Tuning by ear is a learned skill since you will have to differentiate. Though they may work the same and borrow many features as brand name carbs, we have found quality to be lacking in some of them and have actually ran into a few duds that just couldn't be tuned or used. If off, bend the little tab that pushes on the bottom of the float needle valve until the float is level. Look for hole connectors on handlebars. If I touch wires together it shuts off but not from switch. The downside to these carbs are they require more tuning and are more susceptible to weather changes. HT65C: Baja Heat Mini Bike - CARB. The small pilot jet inside of these small carburetors tends to clog if you leave gas in the carburetor without riding for 2-3 weeks. we do recommend this part be upgraded to handle the extra torque your CVT will produce. By conquerall There are many different factors that determine how fast a 150cc scooter can go. We hope you enjoyed this guide to GY6 carbs. Turn the screw counterclockwise (or out) through the range of smooth idle, until it starts to idle roughly again. Lift the front of the ATV and attach the two front tires. Also, it reduces fuel consumption by increasing the burning efficiency! Recalibrating your CVT modification will not increase the actual power output, but it has a high performance-to-cost ratio. I put new coil and spark plug, with the cdi, I thougt that was the problem but i had the old parts, now what had happen i road it to the Scooter shop to buy a stator, shut the scooter off thats when my problem stated. In some cases it may be necessary to let it soak overnight in carburetor dip. In order to perform the check we should follow the following steps: Ride the scooter warm. Once you find the setting where the RPMs begin to drop, turn the Air/Fuel mixture screw about 1/8 turn COUNTER CLOCKWISE and that should be close to the ideal Air/Fuel Mixture setting. Adjust or repair the carburetor and fuel delivery system to ensure consistent fuel level. Cleaned my carb on gy6 150 and now back fires out of it wont start when it does it backfires and dies, cleaned my gy6 carb on my atv will crank just fine on idle when pushing throttle more than 1/3 of the way engine bogs down and wants to die if i let go of throttle it will idle fine any help would be awsome, Your email address will not be published. Click here for current stabilizers. Click here for instructions on how to enable JavaScript in your browser. Youll find the drain tube hanging off of the very bottom (drivers side) of the carburetor. Remove the two bolts holding the muffler on and remove the complete muffler. If in doubt, err on the rich side with extra fuel to help avoid engine damage. A must have for riding in hot summers when air cooling the motor is not enough. 2. @vN.0#`sSln7j00>{`MFFA#'vwG:4~bH2 Q
Be careful opening the float bowl on one of those, as gas will spill if youre not holding it upright. So the basic procedure is to set the fuel/air mixture to give you the fastest idle, then use the idle speed adjustment to set the speed to the lowest rpm that gives you smooth running. Unfortunately, cleaning our carb didnt help. Time stamps to each adjustment in the description.Further reading about carburetor jetting and mixture adjustmenthttps://www.thejunkmanadv.com/motorcycle-carburetor-jetting.htmlBUY MERCH! I have a Tomberlin 150 Crossfire with a Howhit engine. Required fields are marked *. Regardless of what machine you own, performance upgrades can help increase the power output (and fun factor) of your go kart or scooter! This is done on most scooters using a screw adjustment on the other side of the carburetor as shown below. If there's any one component that's more likely to go out of adjustment on your scooter (especially
Runs great. Be sure to bend the tab only slightly. We highly recommend you consult with certified or skilled mechanics or technicians before proceeding. Specifically, the Mikuni TM24 is the carb a lot of people use on their GY6 swaps. A carburetor that is tuned correctly will both protect your engine and induce optimal performance. An easy way to check for leaks is to spray the intake manifold and area surrounding it with WD-40. It can feel like driving your 5-speed car in 3rd gear on the freeway. If you have any questions or comments, use the form below this article to let us know! This is the case with all carbs no matter what size and style you run on your GY6. Many of the GY6 scooter engines seem to use a Keihin style CV carburetor (24mm), so check with a motorcycle shop or motorcycle supply source that sells carb jets. Also how to locate and adjust it. We are checking the PageSpeed score of your Adjusting Air/Fuel Mixture page. During adjustments, the float should be oriented the same way as it came out of the carburetor. I believe that would be a fuel adjustment screw. The basic idea of adjusting the CVK carb is to set the air/fuel mixture screw to provide the highest idle setting possible. When tuned to the level of the highest performance, a two stroke engine will be running in a slightly lean(too much air and too little gas) condition. 23 CARBURETOR IDLING ADJUSTMENT AIR ADJUSTING SCREW ADJUSTMENT Step one: Turn on the air adjusting screw in the turn out by the prescribed number of turns. If your Kart has a 2-wire or 3-wire switches (e.g. This will ensure that the engine is protected and properly lubricated while giving us the best performance possible.
How? You will need to drain the bowl, disconnect the fuel hose, throttle cable, vacuum hoses if equipped, unhook the choke or enricher/bystarter, disconnect the oil injection hose if equipped (2T), and remove the carburetor from the air box or filter and the intake. There are even big bore kits that boost engine displacement up to 180cc -- stroker cranks, larger carbs, different intake manifolds, even aftermarket 4-valve heads. 108 0 obj
<>/Filter/FlateDecode/ID[]/Index[74 65]/Info 73 0 R/Length 148/Prev 744157/Root 75 0 R/Size 139/Type/XRef/W[1 3 1]>>stream
Try these two things if your Buddy is not running or hard to start.Parts Used: . Yes, this is a great site for information. Our model in these picture is PD30J, however, this information applies to all GY6 carburetors. What Is Adjusting a Carburetor? The stock GY6 can be tuned by changing the main or pilot jets and also via adjustment of the air/fuel screw. The scooter shown in this video is a 150CC/157QMJ/Long Ca. Got it fixed. between high, higher and even higher pitches. Click here for high performance camshafts. Sometimes they come loose. Inspect the manifold, carburetor gasket, and intake gasket for cracks or other signs of damage, and replace if necessary. If you hear a suction noise, your tank cap is plugged and needs to be cleaned. Scooter gy6 150 not charging and it boggs down, the shops are trying to drain my pockits. Carburetor Gy6 150cc http://amzn.to/2y7tqBc Donate to Virberello for Parts https://rb.gy/gzrtitChinese Scooter Service Manual https://amzn.to/2LBfWb8Hell. This applies to a lot of carburetors really beside. It affects both the user experience and SEO rankings. :%p_OnT;^ In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. Check that the brake fluid reservoir is horizontal and that the fluid level is: Front brake above the LOWER level mark. Click here for high performance camshafts. Increasing air flow through an engine is the goal. The fuel also has to be atomized as much as possible (i.e. Click here for racing performance clutch and bell kits. Here's a freebiewe personally run a 30mm OKO carb with 120 main jet and a 38 pilot on a shop built 171cc GY6 motor. Turn the Air/Fuel Mixture COUNTER CLOCKWISE 1/4 turn and wait about 30 seconds to allow the engine to respond to the new setting. Currently you have JavaScript disabled. Step three: Left and right, adjust the air adjusting screw slightly to nd the highest position Compressed air and chemicals might not work. you will need to upgrade your belt to a Kevlar belt to accomodate the extra torque from the rollers weights and torque spring. 25\ ms<1CI#_ b*wPAPd` Pgg Adjust the high jet until you get maximum RPMs (the highest pitch noise). High Performance CDI - It allows for increased RPM from stock 5600 to 9600 rev limit. There are four screws on the carburetor that need to be adjusted: the idle screw, the low speed screw, the high speed screw, and the pilot screw. I hope not to much. This is the Small Fast Things definitive guide to GY6 150cc carburetors both stock and aftermarket. If you want to advance your ignition timing, then make sure the unit you get actually has the advance programmed into it! To go faster you need more fuel and more air and they must be in the right proportion. If you are thinking about upgrading your GY6 150cc carb, the only real aftermarket solution is a Flat or Round Style Slide Carb. There's a small spring loaded screw which adjusts the idle speed. A two stroke engine gets it oil lubrication from the gas and if there is less gas in the mixture, that means that less oil is making it to the engine. If the RPMs go up, repeat step 1 in turn increments until the RPMs begin to drop. Don't go too far though. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. Turning clockwise ("closing" the jet) will produce a higher idle, and counterclockwise ("opening" the jet) will produce a lower idle (and eventually flood and the engine will kill, if you turn it too far). Explanation of the air screws VS fuel screws regarding the idle mixture. endstream
endobj
startxref
Now, if the engine doesn't start, you may need to turn the low jet slightly one way or the other for the engine to start.
Marble Repair Kit Near Hamburg,
Bmw X5 Door Handle Cable Adjustment,
Ticketing System Laravel Github,
Segment Analytics Github,
2016 Mercedes Gle 350 Roof Rack,
Cake Curl Reviving Spray,
Outboard Jet Liner Replacement,
Radiator Hose Protector Sleeve,
Black Farmhouse Sink Faucet,