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Hello all,
I recently purchased a used 2000 Yamaha 25HP 4 stroke. I have a couple issues, I'm not much of a gear head so I can use your advice. When I'm running the motor and slowly creep up the RPMs it hesitates and acts like it will stall unless I decrease/increase throttle. I don't have a tach so I'm not sure of the RPM range, but it feels like it's just above the range that you get in neutral. Also, I don' think this happens when I'm backing down the throttle, only when increasing but don't quote me on that. I imagine I need to start by looking at the carbs? Is there a DYI manual for servicing carbs as I'm not very mechanically inclined? I've already changed the oil and installed new spark plugs according to the owners manual.
Also, I noticed when I did the oil change, I noticed the oil smelled a bit like gasoline. Is this normal? I haven't done a compression check and it doesn't seem to be burning oil so I'm not sure how to diagnose this or if it's even an issue.
Thanks all!
I recently purchased a used 2000 Yamaha 25HP 4 stroke. I have a couple issues, I'm not much of a gear head so I can use your advice. When I'm running the motor and slowly creep up the RPMs it hesitates and acts like it will stall unless I decrease/increase throttle. I don't have a tach so I'm not sure of the RPM range, but it feels like it's just above the range that you get in neutral. Also, I don' think this happens when I'm backing down the throttle, only when increasing but don't quote me on that. I imagine I need to start by looking at the carbs? Is there a DYI manual for servicing carbs as I'm not very mechanically inclined? I've already changed the oil and installed new spark plugs according to the owners manual.
Also, I noticed when I did the oil change, I noticed the oil smelled a bit like gasoline. Is this normal? I haven't done a compression check and it doesn't seem to be burning oil so I'm not sure how to diagnose this or if it's even an issue.
Thanks all!
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