Maintenance & Technical > KX250 / KX125
kx250 problem??
Fowler Racing396:
i carried my bike out for a ride today. .having a issue with it.. when im starting from a start and riding the clutch out it starts jumping like if the sprocket was wore out and the chain was riding over it. . splines on output shaft are in good shape and the sprockets are also. .got a riding trip 2mar so dont wanta start taking motor apart. . any ideas what it could be? it does it in all gears from a stop start. . .dosnt do it when i drop clutch
jonny500:
sounds like it could be the clutch or gearbox. just clutching at straws here but are all the engine mounts in good order and tight also are there any any bad links in the chain. swing arm bearings ok?. while im here fowler, can i ask what con rod you run in your drag k5s
DoldGuy:
Fowler,
Lay the bike on it's side & remove the outside clutch cover (don't need to drain oil or coolant) & check the pressure plate & inner hub, also check rivets on outer basket. Should be less than an hours job to inspect.
I am sure that thing feels Dog Slow compared to your Monster 5!
DoldGuy
Fowler Racing396:
jonny500 . ..all the motor mounts are tight and chain is good. ..im guesing my k'5s run the same rod. .i send the cranks to falicon and they stroke it for me. . . .. . . .me and the wifey geting rite to go out to eat so i might take clutch apart tonight depends on how late we stay out. .
Hillclimb#42:
My 250 had that happen. It was a combination of a worn basket and the needle bearings in the clutch release arm. You can disconnect the clutch cable and pull the release arm out easily. I put heavy grease in there and it was a smooth stroke for a short time. The answer was new bearings in the hole. It required a "blind hole bearing puller." My clutch release arm had obvious scarring that developed at the bearings that wore through the dark coating of the arm's shaft. The slower I released the lever the more jumpy it acted.
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