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Nozz
Joined: 12 Jul 2004 Posts: 33 Location: Jonestown Texas
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Posted: Fri Jul 16, 2004 9:26 am Post subject: motor problem with rotax 500 |
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I recently bought a used 94 classic. The motor just quit in the middle of a ride. Starter won't engage and kick start has no compression. Only way motor turns is when in gear and rear wheel turns. Any idea what's gone wrong? _________________ Jim |
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keithcross
Joined: 20 May 2004 Posts: 870 Location: Hampshire England
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Posted: Fri Jul 16, 2004 1:04 pm Post subject: |
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Sorry to say it sounds like a bent valve of holed piston. Have you checked the valve drive train, I thing this model runs a belt drive to teh overhead cam.
Keith _________________ Ride it like you stole it |
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Nozz
Joined: 12 Jul 2004 Posts: 33 Location: Jonestown Texas
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Posted: Fri Jul 16, 2004 3:38 pm Post subject: Rotax 500 problem |
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Not yet. SInce it is pretty new to me, the shop that sold it is going to be looking into it in the next couple of weeks. Thanks for the reply. In case the cam drive belt failed, would it cause valve/piston trouble, or maybe just need the belt replaced and timed? |
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keithcross
Joined: 20 May 2004 Posts: 870 Location: Hampshire England
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Posted: Fri Jul 16, 2004 4:08 pm Post subject: |
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Nozz
Unfortunatly when a cambelt or camchain fails, it normally causes damage to the valves. In extreme caese it can also lead to piston and cylinder head damage.
Keith _________________ Ride it like you stole it |
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DAVID THOMPSON
Joined: 23 Nov 2003 Posts: 1118 Location: Parkersburg, West Virginia usa .You know the PARTS have been SHIPPED when the MAIL MAN knocks
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keithcross
Joined: 20 May 2004 Posts: 870 Location: Hampshire England
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Posted: Sun Jul 25, 2004 8:28 am Post subject: |
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If you need a new motor, check out the UK ebay site. There are very often bikes with this engine fitted cheap. The british Army use this motor in their bikes. And if you are not already aware some are Harley Davidson's.
Keith _________________ Ride it like you stole it |
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Nozz
Joined: 12 Jul 2004 Posts: 33 Location: Jonestown Texas
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Posted: Tue Aug 10, 2004 12:22 pm Post subject: The Rotax is back in action |
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Thanks for taking the time to share your expertise. Wanted to let you know that it turned out that the bolt holding the cam belt pully had actually backed away and caused the pulley to get far enough off the shaft to strip out. New pully and back in action. David, I may take you up on the timing instrux. The guy I bought the bike from took care of it since it was pretty new to me, but in the future, I may certainly need to be self sufficient. Keith, I am very glad to say no damage was done inside |
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