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Yamaha 150 stalls at 4200 rpm

garland

New member
my 10 year old sx150 has begun

my 10 year old sx150 has begun to fluctuate 300 to 400 rpms at 3800 rpm and stalls at 4300. after a minute it restarts and is fine until i get to 3800 rpm
 
Best thing you can do at this

Best thing you can do at this time is review all the past postings regarding same issues. I had same with my engine and by going through the listings I corrected my problems. I just hate paying $90 plus and hour to a shop mechanic to do what I can do from past information. Now I read through the postings daily just to keep fresh on items that may give me a problem in the future. Good Luck
 
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