jwales wrote:The plug is good, strong spark.
How do you know the plug will fire under compression? New Plug is not the same thing as Good plug - try another one that fits (even if it isn't correct as long as it has same thread and reach)
I will check the spark arrester/muffler....completely over looked that, I guess thinking it was an issue with 2 cycles instead. Do you know what the compression range should be??
Minimum 65 PSI I would say considering it is 4-stroke
I also do not know what PNC is, so am also interested.
an acronym referring to Piston and Cylinder .. Us old-school techs refer to it as the "Jug Kit"
The timing belt is intact.
Yes but could it have jumped time? - with cover off to see the flywheel magnets passing coil, observe valve action (and/or with a pencil in the spark plug hole to see TDC) and see if you get valve overlap at the right piston position (and the magnets should have *just* passed the coil legs to trigger spark at TDC) then you can assume timing is pretty much where it should be
The oil was awful dirty, so I did change it.
I just can't believe I could not get it to fire with a shot of starting fluid. My neighbor said to toss it, he is buying a new one next spring. It has me curious so I will play a little more (but not much) with it before tossing.
Thanks
Yeah they are usually not worth putting a whole lot into which is why I almost never see them for service - costs more to fix them than to replace them.
How poor are they who have not patience. What wound did ever heal, but by degrees? - Iago (Othello Act II, Scene 3)