How to set timing if engine won't start

[kcrawford]

Hello everyone newbee here,
Mercury 25 hp outboard 6787089. Throttle stuck wide open on new clamp I put on fuel line. Shut it down as quick as possible, fixed problem but engine will not start. I have fuel, I have spark to both cylinders. Maybe problem with timing? Every book I look at talks about setting timing on a running engine. My problem is it won't start. I also checked compression on both cylinders and it was good. If i open the throttle all the way open it will puff or kick-back a little. Any help is greatly appreciated. Thanks!

 

[Laddies]

Re: How to set timing if engine won't start

If the trigger is free and moves with the throttle linkage, the only thing that could have happened is the flywheel sheared a key ot the inner magnet ring on the flywheel has moved some how, so don't tinker with the timing once its set and it don't matter if it's a 6HP to a 250HP it don't move, most of the syn and link crap is caused by people tinkering- shooting them selves in the foot

 

[kcrawford]

Re: How to set timing if engine won't start

Thanks! VA. I will check that. The pistons move and I have compression,if the pin sheared would I still have compression?

 

[Laddies]

Re: How to set timing if engine won't start

Yes, the only thing that would be effected is the timing

 

[kcrawford]

Re: How to set timing if engine won't start

Laddies, Just got the flywheel off and guess what pin is sheared. Have to put everything back together and I should be fishing Monday thanks to you and this forum. I can't thank you enough for taking your time to help me. Thank You! Will let you know how it runs when I am done.