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new 7mm cub noise

3986 Views 32 Replies 8 Participants Last post by  BBIII
Hey guys I just took my cub out for the frist trip and after the first day of riding the next morning its was really cold and i have a noise coming from the motor and its kind like a card in the spokes king of noise that goes faster and slower with the rpm range tell the motor heats up is this just the pistons needing to warm up or any ideas. It goes away as soon as the motor is good and warm and it runs like a monster and I road it the hole day with no proablems.
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QUOTE (s-540 @ Jun 17 2008, 01:41 AM) index.php?act=findpost&pid=2954did it make this noise after you put the straight cut gears in?

Kinda what i was thinking...straight cuts are known to make a little more noise than the stock helical cut gears..
Better to tear it down. Clearances could be on the edge of showing good compression, but ready to implode...

Noise = Bad, unless it's coming from the end of the exhaust pipe.
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