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2005 Yamaha raptor 80 revs to the moon

Old Feb 24, 2018 | 11:13 PM
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Twitch08's Avatar
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Wink 2005 Yamaha raptor 80 revs to the moon

History: just bought quad from friend ran fine when he parked it. It sat for awhile. I started it, it would only idle on choke and idle was high. So I cleaned the carb. Thinking I had a clogged jet ( I worked at a motorcycle shop for a couple years and probably did 50+ carb cleans on bikes and quads, so this is not my first time). Found the smaller jet clogged, used a wire from my wire brush to poke it out and blew air threw it. Assembled it and now...


​​​​​- Will not run with choke on once warm.
-Turn off choke and quad revs out of control
- there is little to no responds with idle adjust screw
- only way to get motor to rev down is to push fuel air mixture screw almost all the way in but quad runs poorly


 
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Old Feb 14, 2025 | 10:39 AM
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I have this same problem. Put it in gear and you have to hold the break to stop it from moving.
 
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Old Feb 14, 2025 | 06:33 PM
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papa hogg scoot's Avatar
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Check throttle cable free play.. air leak around intake spray with wd40 while it revving high after spray if engine loads up then bingo the wd40 riches up and flooded it down
 
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