xr250 questions

**Scheme** · 17th December 2007, 21:48

hey,

I've got an old `87 rfvc model xr250. Now I've just torn the spline off the drive shaft for the front sprocket. Obviously the easiest answer is to just throw a second handy gearbox at it, but I was wondering if any of the bigger xr engines fit into the 250 frames easily? a 400 perhaps? and how easy are these things to find, can't find any xr motors at least 250cc for sale on trademe at the moment, does naybody know of any?

**B0000M** · 17th December 2007, 21:56

usually from what ive seen its very uncommon to find dirt bike engines for sale. the engine is pretty much the only part that ever gets damaged on a dirt bike beyond repair, therefore theres never many for sale.

as for the bigger ones fitting, i cant help with any info on that

**Scheme** · 17th December 2007, 21:59

so weld the sprocket on till I find something lol

**B0000M** · 17th December 2007, 22:55

have you looked into replacing the required parts within the gearbox?

**cheese** · 18th December 2007, 07:58

I'd call econo honda and see about a non RFVC engine and making it fit. I'm pretty sure that was the year honda really fucked up.

**Taz** · 18th December 2007, 08:03

Just price the output shaft thru a dealer and then decide if you want to strip it down and replace or flick it off and get a newer bike. Really your only two options. Can you do the work yourself? If not then it's probably not worth the expense.