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View Full Version : 250x Electric Start using 300ex Parts



ThunderCummins
09-07-2005, 02:37 PM
The kickstarter broke and I'm tired of kicking this thing, after reasearching this I think the problems will be
1.Will the starter ring bearing and flywheel from a 300 will fit on the 250 crank
2.The case will need a hole for the starter idler gear shaft from the 300.

The 250x (1991)_is in the barn at the cabin so I don't have it to look at or have any 300 parts, but maybe some one has tried to do this will chime in.

2muchquad
09-08-2005, 02:02 PM
i think the cranks are different,at least the 300 has a longer stroker so im not sure if the flywheel would fit.it would almost be easier to just pick up a 300ex bottom end.

ThunderCummins
09-08-2005, 03:18 PM
Yep I think I hit a road block with these 2 time to get a 300 motor and swap all the new bearings I already bought for the 250:(

250rider
09-15-2005, 06:54 PM
nope it will work u just need a new side case and the hwole starter mechanism

ThunderCummins
09-16-2005, 03:05 PM
So if thats it then all I need is left case and cover and my crank will work it sounds easy enough,but still might get a 300 motor for all the parts cause seperate parts cost more.