Tools that have more than one use are always the best...I have a few of those lying around, if you know what I mean
old Shindaiwa saw running rough
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Thanks @qwee I figured it out. The inside-the-tank piece definitely inserts thru the hole in the top of the fuel tank. To do this, you have to remove the fuel tank, but that is easy once you've removed the big cover with the starter mechanism and all (I've removed that cover probably half a dozen times, now and I'm getting pretty good at it ). And you have to attach the fuel filter after you get it in there.
So I replaced the inside-the-tank piece with NOS. I don't have replacement for the part that leads from fuel tank to carburetor. But BOTH pieces looked just fine to me. So I'm confused. Maybe it's fixed. Have to wait a few hours or until tomorrow to tell for sure.
). And you have to attach the fuel filter after you get it in there.So I replaced the inside-the-tank piece with NOS. I don't have replacement for the part that leads from fuel tank to carburetor. But BOTH pieces looked just fine to me. So I'm confused. Maybe it's fixed. Have to wait a few hours or until tomorrow to tell for sure.
Dieselhead
Minister of Fire
Hopefully nos does not bite you in the behind. Older rubber isn’t designed for today’s fuels and depending on how long it’s been sitting in someone’s shelf the rubber may have already started to degrade significantly. Keep us updated!
Seems like it'd be possible to jury-rig this if worse came to worse. It's just a little hose going from a barb fitting on the carb to the fuel filter inside the tank. The only trick is sealing where it passes thru the hole in the top of the fuel tank.
Argh, so trying to start today (after replacing fuel line yesterday), same behavior: 20+ pulls to start, then runs fine. I'm mystified.
Ugg Sounds just like my old small poulan. They don't call it puuuullin for nothing.
It also vibrated like crazy and made your hands numb after 5-10 minutes.
I hated that little saw and was so happy when i finally gave up on it and got a good used stihl ms250 to replace it.
Best $200 i've ever spent. Saw was and still is in like new condition.
Man, I'm just at wit's end. Took probably 50 pulls to start it today and then it ran like a champ. Gotta be fuel, right ? I just don't think the fuel line is bad. Somehow the fuel filter is letting fuel drain back into the tank, bad one-way valve ? Maybe the pump diaphragm is somehow not doing its job (too stiff ?) ? An issue with the impulse pipe (looked ok to me) ? It was a new carb; but who knows how old it really is. I think I can just buy a replacement diaphragm ...
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yeah that could be it, and those impulse lines can get cracks that you can hardly see.
I never tried to fix the endless start pulling with the poulan because i hated the saw so much.
But have replaced impulse and fuel line on my stihl 029. That rubber material has a limited lifespan.
I never tried to fix the endless start pulling with the poulan because i hated the saw so much.
But have replaced impulse and fuel line on my stihl 029. That rubber material has a limited lifespan.
Double check that the fuel pump is directly against the carburetor body and the gasket is against the pump cover. Also check that the impulse hole is actually machined. I’ve seen that hole missing in both the body and the cover in new carbs from the factory.
Also look at the metering side for the same thing, but the gasket goes against the body and the metering diaphragm goes against the cover. The metering lever height should be adjusted to spec to keep the needle from hanging open.
Also look at the metering side for the same thing, but the gasket goes against the body and the metering diaphragm goes against the cover. The metering lever height should be adjusted to spec to keep the needle from hanging open.
That seems not at all unlikely, except ... if there's enough compression to give decent power once the thing is running, wouldn't there be enough for the fuel pump ? Also, this issue came on fairly abruptly.
I've seen old Chevy 350s that you could spin over by the fan and start. Compression is much easier to accomplish than vacuum
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