bigdogg1
Well-Known Member
Is this a thermostat issue? My Yamaha 250 w/ ~ 250 hrs starts fine, idles fine, accelerates fine and travel very well at RPM up to 4500RPM. However, when I open it up to 5500+, it decelerates right down to a troll within 10 seconds. After turning the engine off and on again, we can get back underway and hit up to 4500 RPM again without issue.
I am wondering if the Tstat needs replacing or are there other issues that others have encountered with similar symptoms?
I am wondering if the Tstat needs replacing or are there other issues that others have encountered with similar symptoms?