AQ125a Timing belt

[Okieboatguy]

I have replaced my timing belt and per the manual, I have all the gears and pulleys lined up correctly and I believe the timing belt is on in the correct position with all the lines and arrows in the correct location. My question is, if I manually turn the crank shaft in a clockwise position one full rotation, all the notches and belt making should line up back at TDC, is that correct? I would like to verify before I re-assemble everything and find out I am one gear off somewhere. Also, while installing the timing belt I was looking for a noticeable mark to set my timing on, but could not find one, do I need to make a scratch or marking so I can see it better at the notch of the crank shaft and use that as my timing mark? Thanks guys for your help.

 

[Don S]

Re: AQ125a Timing belt

if I manually turn the crank shaft in a clockwise position one full rotation, all the notches and belt making should line up back at TDC, is that correct?

Nope, you have to turn the crankshaft 2 full revolutions.

You set the timing roughly as shown in the manual. When you start the engine, you set the timing with a timing light. It's the only way to do it properly.

 

[Okieboatguy]

Re: AQ125a Timing belt

Thank you very much, how about the timing mark, is it the notch on the crank shaft gear?

 

[Don S]

Re: AQ125a Timing belt

Notch in the V-belt pulley on the crankshaft.

 

[Okieboatguy]

Re: AQ125a Timing belt

Don, that was it, I verified my belt position by to turns and they lined up as you said they would. So I reassembled everything, and he fired right up! I started to set the timing and got it set at 10 BTDC, However, my RPM's were at about 1100 rpm, and I was having issues getting past 3000 rpm to check the top end. It would want to die as soon as I hit that 3000 mark, but there were a few times I could get it up to 4800 and a little more if I coaxed it and moved it slow. My thoughts are I now need to move on to the carburetor, and make sure it is adjusted correctly. Any thoughts or input on if I am going in the correct direction?