Yamaha Question
#11
04-02-2014, 12:12 PM
122.5 main for 87-88.
120 main for 89-95. According to Clymer manual. Get one!
So your main should be a 120 and clean the hell out of your carb to rule it out. It causes most problems in these things. The needles are so tiny. Run carb cleaner through them and spray compressed air.
I always say put in a little inline fuel filter for insurance like I do with a Kohler fuel filter. Part number: #25 050 07-S1
Since using that little filter I haven't had any carb problems in about a year or so. The tiniest little **** can cause a world of problems.
120 main for 89-95. According to Clymer manual. Get one!
So your main should be a 120 and clean the hell out of your carb to rule it out. It causes most problems in these things. The needles are so tiny. Run carb cleaner through them and spray compressed air.
I always say put in a little inline fuel filter for insurance like I do with a Kohler fuel filter. Part number: #25 050 07-S1
Since using that little filter I haven't had any carb problems in about a year or so. The tiniest little **** can cause a world of problems.
#12
04-02-2014, 12:17 PM
Check the main jet. If it's bogging out at full throttle, it could be that it's getting too much fuel. My 96 warrior did this exact thing and it turns out someone had put a larger main jet in it without having put on a pipe(or perhaps they removed the pipe and were too lazy to pull the larger jet). IIRC, the stock main for the 350 is a 145.
It could also be that your air cleaner is dirty/clogged as that would create a similar issue(rich), but from the other side(air restriction).
It could also be that your air cleaner is dirty/clogged as that would create a similar issue(rich), but from the other side(air restriction).
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