Question about RTO Quads 125cc Full Size Adult 4 Wheelers ATV
Yamaha 660 raptor runs then sputters after about 60 ft. I have changed gas,plug took carbs off cleaned with cleaner and also took out all jets and ran a wire tru them to make sure there wasnt any thing blocking them put back on and same problem exist? also if i pump gas it will continue to run but same problem exist
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Posted on Jan 02, 2017
Electrical problems can be either, coil, (most common) stator, magneto, or timing. Make sure the coil is grounded to the frame of the quad and not against a painted part. It should be in contact with raw metal. The stator or magneto could be tested at a dealer. Good luck.
Posted on Apr 06, 2010
sounds like the gas that was left in the carb. has turned bad and clogged the jets. the only right way to fix it is to pull the carb off the bike and take the bottom bowl off. once done you can take some carb. cleaner and spray out all the jets and crevices inside the carb. hopefully this fixes your problem. if not then you will need to pull the carb. completely apart and give it a good soaking. once you have soaked it for an hour or so take some compressed air and blow out any holes. be sure to blow it out good. once done put the carb. back together and give it a shot. this should fix it right up for ya.
Posted on Aug 07, 2010
The problem would appear to either be with the mixture or with the head.
Too rich a mixture (too much fuel) will cause black plugs - when you take them out do the engine and plugs smell of petrol? You need to adjust the carburettor. Mark where the throttle screw is to start with and then slowly screw it (in - I think) to reduce the petrol flow.
The other alternative is that their is a problem in the head. Does the engine blow a lot of blue/black smoke out when it is hot. If yes it means a full engine strip down!
Posted on Mar 03, 2011
Sounds like a bad ignition condenser. Many nowadys aren't worth spit, and you may wind up going through a few until you find a good one.
Posted on Aug 09, 2011
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