Hi all,
Great site! I have searched for hours w/ my particular problem and can't seem to find the answers. Probably just not searching the right words. Any direction or thread links would greatly be appreciated.
Saw: Stihl 032 AV, I bought it at a local swap meet for $40. It burped when I tried to start it, it was real low on gas. I figured it would fire right up w/ some new gas. Guy said he was told it ran when he bought it at the estate sale.
It doesn't!
What it does:
The saw has great compression. You have to put your foot on it to start it. Spark was blue, and I think it looked ok...not familiar with what and how big the spark should be. The plug looks new.
You choke it, set trigger to high idle and it fires on second pull for 1 sec. Move the choke to open and it fires again for 1-2 seconds. It will keep doing this maybe four or more times. I pulled the plug and it was wet. Maybe too wet?
Last night I choked it and it fired the same. Then I barely moved the choke over and it ran for maybe 5-10 sec. I Could not get it to do that again before I gave up.
What I have done:
Changed the Air Filter,
Changed the fuel tank pick up (I thought it was soft), checked and cleaned pick up fuel filter.
I pulled the impulse hose and checked for leaks. It wasn't cracked. I attached it to the carb and sucked on it and I could feel suction on the fuel barb off the carb that goes to the fuel tank.
I relaced the fuel line from tank to carb.
I attached the impulse line back on the engine and cranked over the motor and could feel suction from the crank case.
I took a part the carb cleaned the high and low needle and set them at 1 1/4 turns each (I'm about 600ft above sea level). Took apart the main jet, inspected. It looked good. diaphragms looked good. Weren't real wavy, seemd soft and supple. Carb was pretty clean inside. I didn't have any "Eureka, that's the problem!" moments. I cleaned fuel strainer.
Also, I poured fuel in top of carb and it didn't leak thru the needle seat. I pressed on main jet needle and fuel flowed out the bottom.
Manifold boot is not torn or rotted.
Carb is air tight as far as I could tell
What I haven't done:
carb kit
crankcase or compression test
compression seems really strong.
Some things I think are weird:
fuel siphons from tank when cap is on and fuel line is disconnected and hanging below. Is that normal? Doesn't seem to be flooding (no fuel leaking out of carb) As soon as you open the cap it will stop. I can blow thru the vent. seems kind hard, but maybe that is the norm w/ the small hole and the check ball in there. I tried to start it with cap off. No difference.
Sorry for the super long first post...Just wanted to give everyone all the info I could think of to see what they think. I need some direction before I throw more $$ and parts at it and not fix the problem.
Thanks,
Grayson
Edit:
UPDATE:
I put a kit in the carb and that didn't help.
I checked the spark again and it looked weaker than before.
Pulled flywheel and found that the primary coil wire was rubbing and had worn off the wire insulation and was probably shorting at times.
Taped wire and tried again. No difference.
Installed Omega Ignition module from NAPA P/N: 7-01749
Saw Fired right up. Big difference in spark output.
Great site! I have searched for hours w/ my particular problem and can't seem to find the answers. Probably just not searching the right words. Any direction or thread links would greatly be appreciated.
Saw: Stihl 032 AV, I bought it at a local swap meet for $40. It burped when I tried to start it, it was real low on gas. I figured it would fire right up w/ some new gas. Guy said he was told it ran when he bought it at the estate sale.
It doesn't!
What it does:
The saw has great compression. You have to put your foot on it to start it. Spark was blue, and I think it looked ok...not familiar with what and how big the spark should be. The plug looks new.
You choke it, set trigger to high idle and it fires on second pull for 1 sec. Move the choke to open and it fires again for 1-2 seconds. It will keep doing this maybe four or more times. I pulled the plug and it was wet. Maybe too wet?
Last night I choked it and it fired the same. Then I barely moved the choke over and it ran for maybe 5-10 sec. I Could not get it to do that again before I gave up.
What I have done:
Changed the Air Filter,
Changed the fuel tank pick up (I thought it was soft), checked and cleaned pick up fuel filter.
I pulled the impulse hose and checked for leaks. It wasn't cracked. I attached it to the carb and sucked on it and I could feel suction on the fuel barb off the carb that goes to the fuel tank.
I relaced the fuel line from tank to carb.
I attached the impulse line back on the engine and cranked over the motor and could feel suction from the crank case.
I took a part the carb cleaned the high and low needle and set them at 1 1/4 turns each (I'm about 600ft above sea level). Took apart the main jet, inspected. It looked good. diaphragms looked good. Weren't real wavy, seemd soft and supple. Carb was pretty clean inside. I didn't have any "Eureka, that's the problem!" moments. I cleaned fuel strainer.
Also, I poured fuel in top of carb and it didn't leak thru the needle seat. I pressed on main jet needle and fuel flowed out the bottom.
Manifold boot is not torn or rotted.
Carb is air tight as far as I could tell
What I haven't done:
carb kit
crankcase or compression test
compression seems really strong.
Some things I think are weird:
fuel siphons from tank when cap is on and fuel line is disconnected and hanging below. Is that normal? Doesn't seem to be flooding (no fuel leaking out of carb) As soon as you open the cap it will stop. I can blow thru the vent. seems kind hard, but maybe that is the norm w/ the small hole and the check ball in there. I tried to start it with cap off. No difference.
Sorry for the super long first post...Just wanted to give everyone all the info I could think of to see what they think. I need some direction before I throw more $$ and parts at it and not fix the problem.
Thanks,
Grayson
Edit:
UPDATE:
I put a kit in the carb and that didn't help.
I checked the spark again and it looked weaker than before.
Pulled flywheel and found that the primary coil wire was rubbing and had worn off the wire insulation and was probably shorting at times.
Taped wire and tried again. No difference.
Installed Omega Ignition module from NAPA P/N: 7-01749
Saw Fired right up. Big difference in spark output.
Last edited:
opcorn:
