I have a 2005 Yamaha 8HP 4-Stroke. It acted up on me yesterday and I had to return about 5 miles to the ramp at fast idle speed (just past the start icon on the handle). If I tried to run faster, it would die out. It did run pretty smooth at idle/fast idle and would start just fine. Started and stopped several times, even let it cool off for about an hour one time (just in case it was overheating), didn't make a difference hot or cold...same problem.
Background: ran fine earlier this year, this was about the 5th time I had it on the water in the last month. Has factory fuel filter and a water separator filter, both changed last fall and look clean. Only filled up with 1 gal of fuel added to existing fuel in 6 gal tank yesterday. Always use blue stabil added to fuel. Checked plugs and both are a perfect tan color.
Any suggestions? Any common problems with this engine?
Does this carb have a high speed jet? While it seems unlikely with 2 filters, maybe it got plugged? Any good (effective) way to clean without pulling the carb?
Thanks, Bill
Background: ran fine earlier this year, this was about the 5th time I had it on the water in the last month. Has factory fuel filter and a water separator filter, both changed last fall and look clean. Only filled up with 1 gal of fuel added to existing fuel in 6 gal tank yesterday. Always use blue stabil added to fuel. Checked plugs and both are a perfect tan color.
Any suggestions? Any common problems with this engine?
Does this carb have a high speed jet? While it seems unlikely with 2 filters, maybe it got plugged? Any good (effective) way to clean without pulling the carb?
Thanks, Bill