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Post by mcoleyus on Jun 28, 2020 15:45:07 GMT -5
When trying to crank my saw it acts like when it reaches the compression stroke it abruptly stops me from pulling further. I removed the recoil start mechanism and all seems well. I cleaned it and put it back together. Then I was able to get enough revolutions for the saw to start but now it's back to the same problem. When I remove the spark plug and pull the rope all seems normal. When I put the plug back in I cannot get the saw to spin enough to start. Any ideas?
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Post by rowdy235 on Jun 28, 2020 22:35:24 GMT -5
Are you sure its the correct plug? If the plug reach is a little long it can contact the piston and prevent from turning over. Of course, since you got it to turn over at one point I hesitate to think that’s the problem. I’d pull the muffler and inspect the piston/cylinder carefully, make sure there’s nothing in there that isn’t supposed to be. When I was rebuilding my XL98 a piece of the exhaust gasket broke off and made its way into the cylinder and it behaved exactly as you described.
Good luck, let us know what you find out!
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Post by mcoleyus on Jun 29, 2020 6:00:28 GMT -5
Well, it did run for about a minute then it stalled because of what I assumed was a fuel issue. Then I could not get it started again.
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Post by sweepleader on Jun 29, 2020 7:45:17 GMT -5
High compression from carbon might cause that, or anything that would advance the timing. Even the wrong plug that did not hit the piston but extended into the combustion chamber might raise the compression.
Does it have chip in it? Are the points set right? Does it have the correct module? (if it does not have points.) These are general ideas, I am not a 330 expert by any means having only owned one and only had it long enough to install a boot after which it ran fine.
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Post by blythkd on Jul 3, 2020 10:30:37 GMT -5
They don't have points so you're more or less stuck with whatever timing you've got. The 330 by nature is one of the toughest saws to crank that Homelite built.
It's got a combination of rather high compression, a small flywheel and maybe fairly advanced timing. At any rate, the saw doesn't have enough flyweight to carry it through a compression stroke. When the recoil rope is coming out, the engine is turning. When the rope stops moving, the engine stops moving almost immediately. That's the nature of the beast.
I'm not saying that the saw couldn't have the wrong plug in it, just don't expect to find a smoking gun that will make it crank over like other more typical saws. Back in the day when we were selling 330's new, we had to buy some back because the new owners couldn't crank them. After 2 or 3 of those episodes, we started steering some folks away from 330's for that reason.
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