Bushmans
Smoke Dragon Herder
Last week I posted about a guy I picked up a rototiller and snow blower for free from and I brought his non-running 031AV home for an inspection to see why it wouldn't run.
A casual use saw and it is in excellent condition.
I proceeded directly to the ignition and tested for spark by laying the plug atop the housing and pulling the cord. Nice little blue spark! Plug appears to be brand new. Next I thought fuel line.
I removed the fuel line from the tank and inspected it. Clean and no apparent holes/cracks. Even put some compressed air to the hose while holding my finger on the end. Filter also checks out. I proceeded from there to the carb. A quick tear down on the carb, cleaning with carb spray, removing idler screws and spraying out jets. Seems clean. Could use a kit as diaphragms are iffy. Impulse hose appears weak and squishy. I did not remove to check for leaks.
I put it all back together and nothing. This did not surprise me as I believe it needs a fuel makeover. New line, filter, impulse, carb kit. I popped in here to do a quick search and learned all about filter foam dissolving and diaphragms going bad and had it chalked up to a fuel delivery problem when I read to try gas in the cyl. or carb. I figured it best to try that so I was sure of the problem before handing the saw back to the guy.
When I pull and pull I would expect it to flood out but it doesn't which leads me to believe the carb is clogged, diaphragms plugged, screen plugged etc. After the search here is when I tried the gas in the cylinder/carb and still can't get it to fire or even pop.
The redneck compression test is good. Hold by the cord and it stays up.
Is it possible that I don't have enough spark? It sure seemed strong to me. I've tried the plugs from my saw and no go either. I removed the two screws and cleaned the ignition module and made sure the magnetized parts were clean and still magnetized. All the wires seem ok.
If I could just get it to fire momentarily I could narrow it down to fuel delivery.
Am I doing something wrong?
There is no visual damage to the either side of the piston. Got me baffled at this point.
Any help would be greatly appreciated. This guy is gonna let it rot on the shelf before he fixes it I think and I would like to help him either fixing it or at least getting it sold for him.
Thanks in advance,
Bushman
A casual use saw and it is in excellent condition.
I proceeded directly to the ignition and tested for spark by laying the plug atop the housing and pulling the cord. Nice little blue spark! Plug appears to be brand new. Next I thought fuel line.
I removed the fuel line from the tank and inspected it. Clean and no apparent holes/cracks. Even put some compressed air to the hose while holding my finger on the end. Filter also checks out. I proceeded from there to the carb. A quick tear down on the carb, cleaning with carb spray, removing idler screws and spraying out jets. Seems clean. Could use a kit as diaphragms are iffy. Impulse hose appears weak and squishy. I did not remove to check for leaks.
I put it all back together and nothing. This did not surprise me as I believe it needs a fuel makeover. New line, filter, impulse, carb kit. I popped in here to do a quick search and learned all about filter foam dissolving and diaphragms going bad and had it chalked up to a fuel delivery problem when I read to try gas in the cyl. or carb. I figured it best to try that so I was sure of the problem before handing the saw back to the guy.
When I pull and pull I would expect it to flood out but it doesn't which leads me to believe the carb is clogged, diaphragms plugged, screen plugged etc. After the search here is when I tried the gas in the cylinder/carb and still can't get it to fire or even pop.
The redneck compression test is good. Hold by the cord and it stays up.
Is it possible that I don't have enough spark? It sure seemed strong to me. I've tried the plugs from my saw and no go either. I removed the two screws and cleaned the ignition module and made sure the magnetized parts were clean and still magnetized. All the wires seem ok.
If I could just get it to fire momentarily I could narrow it down to fuel delivery.
Am I doing something wrong?
There is no visual damage to the either side of the piston. Got me baffled at this point.
Any help would be greatly appreciated. This guy is gonna let it rot on the shelf before he fixes it I think and I would like to help him either fixing it or at least getting it sold for him.
Thanks in advance,
Bushman
