p575
ArboristSite Member
My neighbor asked me to look at this saw for him, he couldn't get it to start. I narrowed down the problem to fuel not getting to the carb. Replaced the fuel line and still no fuel. Started tearing into the carb (Walbro WT20) and found that it wouldn't accept fuel coming in. I attached a hose to the fuel inlet and tried to blow into it, it wouldn't let air in at all. Got a carb kit and replaced the diaphragm, the spring/needle valve, etc... that goes on that side, and the gasket/membrane part that goes on the other side.
Now, not only will it accept fuel, it seems to be taking in way too much, pull the rope 5-10 times and raw fuel starts to come out of the exhaust. I did get it to start and run at WOT a few times, but it wouldn't run more than 10 seconds or so. The original fuel line was clear, and it didn't seem to have a solid stream of fuel in it, it had tons of bubbles leading my to believe there may have been a crack in it that was pulling in air, so I replaced the entire fuel line with a black one, still won't run.
I know this isn't a great saw, it's one of the most user unfriendly ones I've ever seen, but if theres anything else I should try before I give it back let me know. On a side note, it's a horizontal cylinder, that seems to have the carb mounted on the crankcase side of the cylinder, pretty unique setup...
Thanks for any help.
Now, not only will it accept fuel, it seems to be taking in way too much, pull the rope 5-10 times and raw fuel starts to come out of the exhaust. I did get it to start and run at WOT a few times, but it wouldn't run more than 10 seconds or so. The original fuel line was clear, and it didn't seem to have a solid stream of fuel in it, it had tons of bubbles leading my to believe there may have been a crack in it that was pulling in air, so I replaced the entire fuel line with a black one, still won't run.
I know this isn't a great saw, it's one of the most user unfriendly ones I've ever seen, but if theres anything else I should try before I give it back let me know. On a side note, it's a horizontal cylinder, that seems to have the carb mounted on the crankcase side of the cylinder, pretty unique setup...
Thanks for any help.