Only way to know for certain.
No, it does just like an engine with 90 compression would. A friend of mine said to squirt some two stroke oil on top of the piston and that might raise compression enough to get it going, then just run it until the rings run in.. He says he's started lots of them that way. I tried this on a Weed Eater leaf blower last year and it worked. One thing I might mention about the starting: I'm a little older than many folks on here (76) and have a heart condition so I can't pull quite as hard or as long as the younger guys but I still can get my other 390 started with no problem...So it won't start at all?
I put a little oil in the hole today but probably not enough, didn't seem to raise compression much. I'll do it again tomorrow and see if it'll do anything...On all the others all I had to do was liberally coat the rings with oil during assembly and that was enough. Maybe this engine has more p/c clearance than the others did...like I have already said put some oil in the sparkplug hole , about a table spoon full , it may have flooded and washed the rings off
Thats what I was telling you from the start do a compression test.I put a little oil in the hole today but probably not enough, didn't seem to raise compression much. I'll do it again tomorrow and see if it'll do anything...On all the others all I had to do was liberally coat the rings with oil during assembly and that was enough. Maybe this engine has more p/c clearance than the others did...
I could tell without doing the test that the compression was low. The rope was too easy to pull.Thats what I was telling you from the start do a compression test.
Rip it down.I could tell without doing the test that the compression was low. The rope was too easy to pull.
That's the next thing on the list. Fighting the flu and the cold weather around here, working on saws in between. Funny they don't bring me many saws in the Summer...Yeah, definitely check the flywheel key.
If that is the problem, run the saw a bit, then check your compression.
Work on them in the kitchen,That's the next thing on the list. Fighting the flu and the cold weather around here, working on saws in between. Funny they don't bring me many saws in the Summer...
Work on them in the kitchen,
on the dinner table!!
Actually, I've been working in the living room on the coffee table with a large piece of cardboard under it. I just checked the flywheel and it's okay...looks like we may be back to excessive clearance on the piston, cylinder. I tried starting it a few minutes ago and it's still a no go...the engine does have spark also..Work on them in the kitchen,
on the dinner table!!
I don't know what to take a pic of, my camera isn't sharp enough to check clearances on the engine which I suspect is the problem.. Just for the heck of it I may get out today and mix up some new fuel and try it...
Getting ready to order some more parts for it later today.Rip it down.
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