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Found 68 results

  1. I have worked about 4 weeks on my Griz600 and have burnt 2 CDIs up ! I added a wire harness and stator and It starts but runs erratically like spark timing is off ! So I would like to try another CDI but I don’t want to Pay an arm n leg ! Anybody have one ? Thanks
  2. I have been trying to get my Griz600 running right for 3 weeks ! Grandsons used it and it quit running , no spark ! New stator etc and started but ran terrible ! Found a burnt capacitor on cdi . Installed used cdi and burnt it also but ran same as other cdi . Came to conclusion wire harness had short so stripped it and found some bad spots fixed and another cdi ran terrible again ! Bought another harness and same rough running ! Checked spark timing with light (put tdc mark on case and on pull start hub) and when it starts timing right on but will jump 25+° retard ! When timing is on tdc marks it has no power ! The stator is new but I am wondering if the pickup coil is triggering incorrectly ? Also had top end apart when I first started having trouble and although rings were good I installed new rings . Also new timing chain and check the valves , they were good also . It kind of seems to boil down to the last stator I installed new ? I have done trouble shooting on quite a few cars , trucks , dirt bikes and ATVs but this is frustrating me ! Just wondering if anyone has any ideas ? Carb was new last yr and I checked it ! I IMG_4379.MOV
  3. IMG_4272.MOV Originally had my griz600 stop running and then wouldn’t start ! After testing all coils , valve lash , compression (115psi) and all tested ok I bought a used cdi . After cdi install it still wouldn’t start (no spark) ! So even though the stator , pulse/trigger and charge coils check within good range I decided to switch the stator etc ! It started but It is very unresponsive on throttle and acts like it is running in 2 Different spark timing ! With slight throttle it will take off good but instantly go into a very different running mode with no power like timing very retarded but it will switch back to running good for short period then bad again ! Since I replaced the stator and it started I then decided to install the cdi I replaced and it did the same thing ! Also I noticed the Used cdi I Took off had a capacitor that had swelled and extruded from the back of the cdi . I had always heard and I believed that when these CDIs go bad they machine will quit and will not run . Is that true ? I also checked the cam/valve timing and its ok ! Checked with timing light and it does fluctuate on idle ! I am thinking I have 2 bad CDIs . I also switched the trigger Coil wires and would not start then . Man , this thing ran good before and I am confused ! Video below may help ! IMG_4272.MOV
  4. 1998 Grizzly600 ! Slowly died then wouldn’t start ! All coils check good ohms ! Checked ac voltage from source coil get OL ! Is the source coil bad ?
  5. Hey guys I'm new to the Forum I just got a 2000 Honda trx90 looking to make it go a little bit quicker I don't know much about four wheelers but I am a technician at a dealership so I know my way around a motor.
  6. I'm working on my brothers' 2002 Suzuki Vinson 500 . It sat for a few years before I got into it. I'm concentrating on the carb - I replaced orings, needle, etc. and soaked jets, bowl and anything that I could get off the carb that the solution wouldn't eat. I also removed the tank and flushed it with hot water - it's clean. The gas cap innards rusted away and the tank had a lot of rust and water in it before I cleaned it. I replaced the gas cap and installed a new fuel valve because the screens were broken in the old one. The bike will run but spits and sputters and backfires. If you "open it up" it falls on its face and stalls - but starts right up. Here is a link to an exploded view of the carb: Ohio Honda Yamaha Motorcycle ATV Dealer - J & J Motors - Kawasaki Suzuki Scooter Utility vehicle, parts, accessories, apparel Can anyone point me in the direction of the problem? It may still be a "clean carb parts issue" . My problem is that the parts list doesn't identify the parts to a degree that I understand. If you said" look at the pilot jet", I'm not sure which jet that would be....See what I mean? It'll run very good if I remove the air filter and cover the opening with my hand and part my fingers a little for the air to get in. Any help is greatly appreciated. Thanks in advance, Jim
  7. Does anyone have a redcat 250 or falcon 250cc that they can share where the two vacuum lines on the carburetor that you run antifreeze through I honestly have no idea where the lines are suppose to go to circulate the antifreeze. Any help is greatly appreciated.
  8. I have no idea where the antifreeze line coming off the thermostat goes too. The carb two nipples in the pic create a vacumme. Can someone help me on this please....!!! my email direct is [email protected]!!!!
  9. I have a 1999 Sportsman 500, it was running fine, than started to lose power in the winter, I adjusted the idle screw and away I went, than a few weeks ago it died, I have found that i am flooding the engine, compression was at 70PSI and due to the compression release mech. i assume i am good as it compared to the same PSI on a 2000 sportsman 500 i have. i cannot start the atv unless i go full throttle and it starts an runs for about 30 sec than dies, again it is flooded. i ordered a new carb off ebay as i could get one for around $40. put that in same issue, i have checked the timing, (good), valves out of adjustment i adjusted to .006 still same issue, i have found the exhaust lobe and rocker arm to have some wear, i have ordered new ones, but am looking for any other input in this area as well. would the exhaust cam and rocker arm cause the engine to flood? i have used a bore scope and the piston liner has good cross hatching still? any input would be great.
  10. A friend of mine has this Bayou 220 that started running bad and parked it a few years ago. I foolishly volunteered to take a look at it. I noticed right away the choke plunger on the carb was broken and probably the reason it was running bad but now the old gas was evaporated and like turpentine. Before i even tried to start it, i drained/ thoroughly washed the tank out, new fuel filter, new fuel lines. Blew air through the petcock etc. Changed the oil and filter and air filter and new choke plunger and cable. I disassembled the carb and rebuilt it with a kit. I cleaned the main jet with solvent and poked a wire through it to make sure it is clean.. the engine now fires right up with the choke on and dies when i take the choke off. I adjusted the air/fuel screw to about 1.5 turns out and the idle screw about 2.5 turns out. The rubber boot between the carb and head does not have any cracks in it so I don't think it is leaking air. I originally had the clip on the needle on the second from the top ring... when i moved it all the way to the bottom it starts, runs and idles really fast and will idle eeally high with the choke off but if i adjust the throttle cable and/or idle screw to a slower idle it will sometimes stall but the idle will go up and down every few seconds and when you give it gas there is a hesitation... i tried moving the clip down to rhe second from bottom and same problem... i replaced all the parts in the pic to the top right. However, there appears to be a small o ring, washer and spring left over from the kit... i did not see these get removed..... a) any idea if where these extra parts go and if i need them and b) any other ideas on why i cant get it to idle right or carb adjustment ideas? Thanks
  11. What is the best and easiest way to tune your carburetor? Any tips or tricks?
  12. So i was riding the other day and my quad randomly shut off. It started back up and ran completely fine for a little while and then it started idling terribly. I cleaned the carb and changed all the jets and everything except the float due to the rebuild kit not coming with one and it actually runs worse then it did before. It will run and idle decent now but when I give it gas it dies. Does anybody know what could be wrong? I also changed the spark plug and air filter along with the oil and oil filter.
  13. Version 1.0.0

    5 downloads

    Excellent video on how the CV carbs used on some Suzuki and other quads work
  14. When i got my 300ex the carb was kinda wreaked, it had some sand in it that i got out, but the choke lever is melted off and the throttle sticks, what would be a good replacement, so far I have replaced the cdi with a non rev limted one and i am currently re building the engine with OEM parts/ Also i would rather not spend over $100 on the carb, but im fine with it being used if it works fine.
  15. So we have a 2000 BearTracker 250cc. We got hit by a tornado and it got flooded out. Water was well over the handle bars and it actually moved almost 40 yards by the water. Anyway, I've pulled the carb and drained the tank. New fuel and a "clean" carb. It fires right up first crank like it used to but bogs down after you try and give it any gas. Think it could still be a carb issue? Carb had a fresh rebuild in April and might have 10-12 hours on it since. After we got it out, It was never started until I took the carb off and cleaned it along with draining the tank. Carb has now been off twice with no differences. Any other ideas? also the water seems to never end in the exhaust. I've gotten out as much as I could but it's still steaming quite a bit like there's more in there. Could this be the problem? I've never had an ATV get flooded out like this one before. Any help or other ideas would be great. Thanks yal.
  16. My 1004 honda trx300 starts up and sometimes idles good, sometimes not so good. If bike is running and I grab the bike and shake it the bike will stall or try to stall. What should I be looking at to fix issue?
  17. After I rebuilt the card it seems to have a faster idle than before. I have tried to adjust the idle screw but will only speed idle up, not slow it down. What should I look for in adjustments. I purchased a card rebuild kit.
  18. Bought a 01 bear tracker and a trailer from a local guy last week. I rebuilt the carb 2 days ago and ran damn near perfect for 2 hours. Parked it and came back the next day. It suddenly won't hold an idle at all and pops when I'm going downhill or at a slow speed. Almost like I'm dragging the whole power train with the weight of the ATV. It still has decent power (80-90% maybe as it is now) but I can't figure out why it's popping and won't hold an idle suddenly. even with messing with the idle screw next to the bowl on the exterior of the carb. No changes. . ANY ideas would be great. I'm far from a carb king, but I've never had this issue before. The fuel was bought 2 days ago and it has a brand new intake manifold as of yesterday when I rebuilt the carb (whole rebuild kit). I sprayed around the carb and did not find any leaks. Thanks y'all.
  19. Can anyone help with routing the hoses on a lt250 carb hose routing? Manual doesn't really specify much, and pictures are lacking in it Sent from my XT1585 using Tapatalk
  20. got it running new cdi coil and stator will idle good but when u give it throttle it will take off but then will bog down but if you put it on jack stand in the rear it will rev up good with the tires spinning only bogs under load have removed carb and cleaned did find that the pilot jet was clogged and cleaned it main jet is clear and open any ideas
  21. i was given a 2003 Polaris trailblazer 250! I have tried 2 different carbs that I purchased off of eBay and they were garbage. Brilliantly Polaris discontinued the carb for the trailblazer, is their anything out there that is compatible??!
  22. I'm rebuilding the carb on my LT160. I'm having trouble getting the needle jet back in. The old one seemed to push in so it stuck up like a sixteenth of an inch inside the carb. I even tried putting the old one back in and same thing. They won't push in far enough so I can get the bleeder to screw back in. I'll post a diagram so you know what I'm talking about. It's numbers 16 and 20 on the diagram I'm having the issue with. Any help is appreciated.
  23. I have a 99 warrior that won't run off of choke. I've taken the carb off twice and cleaned it. Second time it sat in chem dip for an hour. Still won't run off of choke. I checked the intake manifold it ok and the ground on the reverse its ok also. I drained the fuel and put fresh in. If I run half throttle and push in the choke it will stay running. It backfires through the carb a little. I took off air cleaner thinking it might be clogged but it not. I have moved the fuel mix screw all over and still got nothing. I checked the gap on the new spark plug it was at .026. Gap is ok the plug was black like too much fuel but when I back it off I still can't run off of choke. Very frustrated please help
  24. I recently purchased a 99 warrior it had been sitting for a couple years. Naturally I drained the tank and pulled the carb off to clean it out. I was careful to do so, but when I took it apart a small spring fell out. There were only two springs in it, minus the throttle linkage. I know the larger one is for the accellerater pump, but don't know where the small one goes. I've looked up diagrams with no luck. It will only fit in a couple places, does it go in the fuel mix screw? Any help would be greatly appreciated thanks

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