Friend of mine has a Stihl 028 that runs backwards. He thinks it may be related to ingnition module anybody ever heard of such a thing?
028 runs backwards?
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I can see where that could possibly happen of the ignition timing was advance really far, but all the saws I've ever had apart had very limited adjustment on the coil. I have a hard time seeing how he started the saw......you have to pull it in the proper direction for it to start. Has he checked to see if the key in the flywheel is sheared off? After some thought, the flywheel sounds like its not right. HMMMMM. Something to ponder.......
onetracker
Minister of Fire
ok asked him for a better dispcrition. was converted to electronic ignition. starts in the proper direction then sounds like a backfire maybe at which point it runs backwards for about 10secs before shutting off. this all happens at idle
After reading some stuff about the subject, it appears some 2-cycles can run backwards after a backfire occurs. That being said, is the coil set correctly off of the flywheel? Sounds like it could possibly be an erratic spark problem.
Danno77
Minister of Fire
it's ruined. I'll give him $25 + shipping for it.
Seriously, though. Something is awry with the flywheel (sheared key like scotty said, for example). I suppose there is a chance that his conversion is botched because of a bum module. those are pretty cheap, maybe try a new one.
Seriously, though. Something is awry with the flywheel (sheared key like scotty said, for example). I suppose there is a chance that his conversion is botched because of a bum module. those are pretty cheap, maybe try a new one.
I had a snowmobile years ago that would do the same thing - except it would keep running. You didn't know it was running backwards until you hit the throttle.
If it didn't have this problem before the electronic mod - then it is the electronic mod.
If it didn't have this problem before the electronic mod - then it is the electronic mod.
firefighterjake
Minister of Fire
I had a snowmobile years ago that would do the same thing - except it would keep running. You didn't know it was running backwards until you hit the throttle.
If it didn't have this problem before the electronic mod - then it is the electronic mod.
Interesting . . . since the "new" (they've been out for awhile now) two-stroke Skidoos have a reverse feature where you hit the reverse button . . . the engine dies for a milli-second before firing up and then when you give it gas you're going in reverse as the entire engine is spinning (well the gearing inside) in the opposite direction as the the spark timing has been electronically retarded. To put the engine back into the forward gear you hit the button again, the engine dies and you're in the forward gear. This whole deal can only happen at a certain RPM though . . . guess it's a safety feature so you don't accidentally hit the button when you're zipping along at 50 mph in the field.
bogydave
Minister of Fire
Love that feature on a snow machine. My Skandic works that way
Not so good for a chainsaw though.
firefighterjake
Minister of Fire
Love that feature on a snow machine. My Skandic works that way
Not so good for a chainsaw though.
HehHeh . . . RER: good for a Skidoo. . . not for a Stihl.
bioman
Feeling the Heat
Thank you everyone for the advice I will pass it along. Maybe a little while before he ever actully gets around to messing with it
DanCorcoran
Minister of Fire
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