I have a Stihl MS461 that I have run maybe 7-8 tanks through and decided yesterday to run it for a minute. Compression break pops up and it is nearly impossible to start. Runs great once it starts but it is a bear to pull. I am guessing that the timing is off. I removed the plug and it turned over fine so it is not locked up. What says the FHC brain trust?
No offense ment, but are you used to running saws of this size and performance? I ask because sometimes guys move up from smaller saws maybe even lower end saws, and they're simply not used to the compression these saws make after a few tanks of fuel has been run through them. Pull her to TDC and pull fast and hard. If the saw is running fine in the cut I doubt the flywheel slipped, but anything is possible.
You could always remove the recoil cover and spark plug, then rotate the flywheel and see if the magnet is even close to the coil at tdc. Not so sure on Stills, but it isn't ridiculous hard to remove a Husky flywheel to check the woodruff key.
No offense taken, Andy. I run a 362 and a 461 and I usually can pull it even if the compression button is not engaged. This saw maybe has 7-8 hours on it and prior to storage, I put the Stihl brand pre-mix fuel in it. Now, once I got it cranked yesterday, it ran very well.
As soon as I get home, I will do that. Assuming it turns over like it is supposed to with the switch off, may I assume it is a bad ignition component?
Yep that’s where I was headed. Although it could be slightly flooded, where it’s trying to pop but the added fuel makes it so it can’t quite overcome the added compression
Problem solved I think. I left the switch off and it pulled like it was supposed to. Then i choked, pushed the de-comp and it pulled off perfectly. Then, after running it for a minute, I attempted to start it again. Same problem. I'm guessing I need a new ignition module? Thanks everyone for the help.
