Question about Garmin Nuvi 660 GPS Receiver

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Motor cross bike

The bike is reving up and down and i just put a new inlet rubber on and it is still doing the same

Posted by ebo366 on


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If it is a 2-stroke engine u might have a problem of a crank seal that is worn.take quickstart and spray it around the suspected  area while bie is running.ideling will increase dramatically if substance is sucked in at  the air leak.check for warn or loose needle situated underneath carb slider.dont b shy to ask!

Posted on Nov 02, 2007


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1978 suzuki ts250 uncontrollable revs

Hey Elijah... the main jet on these bikes is not "adjustable" is a set sized jet.. what you did is probably fixed the air leak that was causing the rev issue..

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I was looking around at photos while developing this answer (needed to know whether this was a twin or a 4-cylinder), and one resource said the idle speed should be 1,200. I don't know if that's right, but maybe 1,000 RPM is too slow for this motor to keep it together. (I do doubt that, though.)

When I wrote that last sentence, I started to second guess myself, thinking "What if the fuel shutoff(s) is/are vacuum operated, and as the bike approaches idle there is insufficient vacuum to hold it/them open?" But the I rejected that, because there is even less vacuum at cranking speeds, yet the bike starts.

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