- The response - Well,
that all depends. Most two strokes are tuned to make peak
HP at or around 7500-8000, obviously some lower some
higher. Importantly, what does it "feel" like when you're
riding it. Does it rev to a point but then not gain any
more power--goes "flat"... that's over revving. You've
exceeded the designed and tuned abilities of that motor
to create more power. Over revving all the time, yes,
can/may lead to premature failure of parts. If the motor
is still developing power, it is not over
revved.
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- HOWEVER!!!! With an air-cooled
motor like on your Blaster, be aware of slow ground
speeds(putting along) vs. motor RPM (higher RPM's). They
can develop heat quickly that will cause motor seizure,
due to the cooling is provided by air circulating around
the cylinder. Don't let it sit and idle for extended
periods of time as well.
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- Backcountry
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- Doesn't that motor or more specifically the
carburetor have some sort of RPM limiting devise attached
to it? If I remember correctly it does and comes on about
7000 or 7500. It is not uncommon to run up against the
rev limiter while running that motor - though selecting a
higher gear may be appropriate when necessary.
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- While proper jetting is always very important, I
wouldn't worry about over-revving it very much. With the
engines short stroke, there is very little chance that
the piston speed would ever come close to the speed it
would take to make the piston fail because of it. If you
remove the RPM limiter - that's different.
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- Rick
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- I don't think there is a RPM
limiter on a Blaster. I have hit 8,000 RPM (TinyTach) on
mine with out a miss. And with a Trinity pipe it will rev
higher.
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- YFS200
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- A Blaster has a rev limiter
called a THORS system it is the weird shaped box on top
of the carb. The other part of the system is a switch in
the throttle. The system can easily be disabled by
disconnecting a plug under the plastic nosepiece. If your
machine has a twist throttle the whole system would be
missing. After I disconnected the limiter on my Blaster
it not only revved higher but also quicker. I had to
disconnect the system on mine because of failure, and a
new unit costs over $200, but I would now do it on any
Blaster just to make it rev quicker. Banshees also have
this system but I'm not sure how to disconnect them
because they have two carbs and two units.
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- Blaster
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- I think you are thinking about
the T.O.R.S system. "Throttle override system (T.O.R.S)
is incorporated in the ignition circuit, and of the
system should fail, no sparks will develop on the spark
plug." -Owner Manual. It's job is to kill the engine if
the throttle cable becomes stuck, or in my case, if I
reassemble the carb wrong with throttle valve stuck open.
:)
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- Take a look at the wiring
diagram. If it was an rev limiter it would need a way to
measure the RPM,s. There is none. I can't really explain
how you got a higher RPM and better performance by
disconnecting a system that has nothing to do with the
performance of the engine. If it has a rev limiter (if so
it must be set at 9,000 RPM because I never hit it.) It
would be built into the CDI.
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- YFS200
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