Hi,
First of all im a new user to this forum so if the thread is misplaced im sorry.
I have a Parsun 25hp 4 stroke outboard engine(yamaha copy)
wich have been working great untill a few days ago i noticed a strange sound if i go above half speed(around 3000rpm is around where the sound starts)
I first tought maby its the valves? but should not the sound be at all times if the valves have to big clearence? but my next problem is where do i access the valves and in what position should the flywheel be in when i set the valves? I rather not take the boat out of the water to check this so i would really like to see exacly what i have to remove to be able to check the clearence, so i dont have to dismantle half engine top housing before i find it haha.
and if this not is the problem? any suggestions what i could check?
best regards
C.S
First of all im a new user to this forum so if the thread is misplaced im sorry.
I have a Parsun 25hp 4 stroke outboard engine(yamaha copy)
wich have been working great untill a few days ago i noticed a strange sound if i go above half speed(around 3000rpm is around where the sound starts)
I first tought maby its the valves? but should not the sound be at all times if the valves have to big clearence? but my next problem is where do i access the valves and in what position should the flywheel be in when i set the valves? I rather not take the boat out of the water to check this so i would really like to see exacly what i have to remove to be able to check the clearence, so i dont have to dismantle half engine top housing before i find it haha.
and if this not is the problem? any suggestions what i could check?
best regards
C.S