An older family friend gifted me 4 complete o31 and parts from about 3 others. He knew I tinkered with saws and he gave up on them. Told me to fix and sell as he just wanted them gone. All have nice compression and the ignition was the main culprit on them so I replace with solid state coils. he said he had spark but the wouldn't fire. I run into the weak spark thing before.
3 run fine now but one has me stumped and asking those who might know to give some tips. It starts and idles but when you hit the throttle, it just idles like the linkage isn't hooked up. It is attached. Every once in a while it will rev just less than a second then go back to idle.
I thought, Okay, carb issue. I took a carb off a runner and put it on the trouble saw and it acts exactly the same. Put the carb from the bad running saw on the runner and it runs that saw fine.
After coming in the house for the night thinking it over, could it be a restricted fuel line? Not to experienced with bad impulse lines but is that what it acts like? Bad case? I put fresh fuel in it at the start and it's idled enough to run a 1/4 tank through it. LOL
Thanks for any insight.
3 run fine now but one has me stumped and asking those who might know to give some tips. It starts and idles but when you hit the throttle, it just idles like the linkage isn't hooked up. It is attached. Every once in a while it will rev just less than a second then go back to idle.
I thought, Okay, carb issue. I took a carb off a runner and put it on the trouble saw and it acts exactly the same. Put the carb from the bad running saw on the runner and it runs that saw fine.
After coming in the house for the night thinking it over, could it be a restricted fuel line? Not to experienced with bad impulse lines but is that what it acts like? Bad case? I put fresh fuel in it at the start and it's idled enough to run a 1/4 tank through it. LOL
Thanks for any insight.