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Posted by stryped on May 15, 2006, 11:46 am
x-no-archive:yes
Can you tell me where the govenor is on this engine and what it looks
like? This is a Koler engine.
spaco wrote:
> I agree that the problem is most likely with the governor. There may be
> a build up of crud somewhere in the system that makes the governor bind.
> this would be particularly true if the governor uses a vane in the
> flywheel's air stream to sense the engine speed.
>
> Pete Stanaitis
> ------------------
>
> Martin wrote:
> > stryped wrote:
> >
> >>x-no-archive:yes
> >>
> >>I have a 5 or so year old craftsman riding lawn mower 48 inch cut. It
> >>seems to run fine while mowing if th eblades are engaged. However, when
> >>I turn the blades off after mowing for awhile, the engine surges like
> >>someone is making the throttle go up and down. It "jerks" while you are
> >>tryign to drive it. I can remember if it still surges when in neutral
> >>or not but it is bothersome when you have to drive somewhere with the
> >>blades off.
> >>
> >>Any advice on what is the problem and how I address it?
> >>
> >>Thanks!
> >
> >
> > It sounds as if the governor may be "hunting" under light load due to
> > slight misadjustment. I'd check to see if the spring or other parts of
> > the linkage may be damaged or binding. Engaging the blades could
> > smooth this out by either adding load, which would possibly cause the
> > throttle governor to move to a less-binding position, or by their
> > flywheel effect.
> >
> > I guess it's also possible that the low-speed carburetion circuit may
> > have a problem, causing the engine to govern poorly at nearly-closed
> > throttle settings.
> >
> > Martin
> >
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