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Canadian Daves JustKDX
Engine reving way too high --- Help please!
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[QUOTE="gbruno21, post: 1410567, member: 120048"] Yes. He split the case and had the crank shaft out. I put it back together and it seemed to go back in pretty smoothly. I froze the crank shaft with the bearings attached and heated the case in the oven at 200 degrees per another thread on this site. The piston and rings appeared to be in pretty good shape (the bike ran great prior to the rotor magnets breaking loose). Now the engine races out of control at idle and then the RPMs drop quickly and it stalls out. I can keep it going for a few minutes by manipulating the throddle but the RPMs stil sound out of control. When I tried to ride it for a few minutes the RPMs jumped way up with only 1/2" or so of movement in the throddle. I am just trying to get it running properly so that I can ride for recreation with my sons. No racing or anything like that. I don't want to spend a fortune to fix a bike that I just use for fun trail riding. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Engine reving way too high --- Help please!
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