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View Full Version : Echo & Stihl Flywheels


Phil G
09-11-2009, 03:32 PM
A question for my fellow mechanics on LawnSite.

Have you had any problems with the ignition flywheel on Echo and Stihl hand held blowers?

So far this year I have had 3 Stihl BG86 blowers and 2 Echo ES255 blowers with sheared flywheel keys, these are the keys now moulded into the flywheel necessitating the replacement of the flywheel.

I have spoken to both Stilh and Echo UK about this and both state quite categorically they never had this happen, anywhere. There are no factory recalls and the 5 blowers that I have repaired are the only one's Worldwide that have had this fault.

The jerk from Echo suggested I have no idea what I'm talking about. He agreed to have the blower back to check out the sheared flywheel. Six weeks later it was returned. Guess what, it would not start. They had fitted an new flywheel, but it was sheared when it was returned.

As I see it there are two way to do this damage, one is to use the collection bag and have some debris jam the flywheel or by inducing a back-fire by switching the ignition on/off at high rpm. Having done repairs for this contractor for over 30yrs neither of these apply.

Any thoughts?

BTW, I've got him two Kawasaki hand held blower and to-date no issues.

Good luck, Phil :ukflag:

ed2hess
09-11-2009, 05:03 PM
I have hardly ever heard of that happening but interesting there was one on lawn site on a BR400 just a few weeks back.

kenmdale
09-12-2009, 08:16 AM
I had to replace 2 flywheels on my stihl pole pruner

sanchezmechanic
09-13-2009, 02:07 AM
give me you serial numbers on this unit I will try to found torque spec. most of the times the first flywheel was not torque properly and the problem keeps caming back.

the other is check the fan and the shredder blades make sure are on good conditions, remember vibrations make everything came loose.