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View Full Version : 86 250R ATC Engine noise/rattle



Portlander
07-27-2006, 01:07 AM
I just put a new crank bearing, rod, piston and rings in my 86 R. It has sat since blowing it up 10 mos. ago. When I fire it up, I hear a nasty rattle or grinding, almost like when you push on the kick starter when it is running. I have had this bike for a LONG time and I don't EVER remember hearing a sound like this. Any ideas???? Thanks in advance.

JackFlack
07-27-2006, 01:13 AM
My 85 has a knock sound at Idle/off idle. Still on original bore.

traxxasx
07-27-2006, 05:08 AM
You probably missed a peice inside the case and is floating around messing with gears.