motiondave
Contributing Member
Hello good people, hopefully someone can advise and or help.
I have a 2008, 30 hp mercury 2 stroke, the lighter 53kg motor. 0N103053
it bogs down under load
Overall, the motor is in very good condition, but looks to have, at some stage, had the power head off and the cylinder head off.
Making us think it may have been apart form some reason.
There is 3 manuals for it and I dont really want to spend over $200 for all from a dealer here in Australia for them.
just about everything else is checked, replaced , cleaned. Compression is fine, no leaks, fuel system perfect.
the only things we have left to consider is.
the timing,
as we are not sure what its supposed to be and there is no markings on the flywheel to line up to the marks on the motor block.
ive read the lever off the throttle has two adjustable screw type lever thingys, sorry I dont know exactly, that move the timing, however, Ive found out they are supposed to be a distance, centre to centre, but im not sure the actual length, can any advise please?
the carburettor , we tested a few things, under load, including winding the air fuel screw almost shut to see if the jets had been drilled out. Nope, still bogs, but not completely ruled out if jets have been drilled out.
Unless the actual motor is assembled incorrectly somehow, we are just about out of ideas
does anyone have any suggestions please?
Kindest Regards, David Lane.
I have a 2008, 30 hp mercury 2 stroke, the lighter 53kg motor. 0N103053
it bogs down under load
Overall, the motor is in very good condition, but looks to have, at some stage, had the power head off and the cylinder head off.
Making us think it may have been apart form some reason.
There is 3 manuals for it and I dont really want to spend over $200 for all from a dealer here in Australia for them.
just about everything else is checked, replaced , cleaned. Compression is fine, no leaks, fuel system perfect.
the only things we have left to consider is.
the timing,
as we are not sure what its supposed to be and there is no markings on the flywheel to line up to the marks on the motor block.
ive read the lever off the throttle has two adjustable screw type lever thingys, sorry I dont know exactly, that move the timing, however, Ive found out they are supposed to be a distance, centre to centre, but im not sure the actual length, can any advise please?
the carburettor , we tested a few things, under load, including winding the air fuel screw almost shut to see if the jets had been drilled out. Nope, still bogs, but not completely ruled out if jets have been drilled out.
Unless the actual motor is assembled incorrectly somehow, we are just about out of ideas
does anyone have any suggestions please?
Kindest Regards, David Lane.