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Old 03-04-2006, 03:56 PM   #1 (permalink)
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Join Date: Mar 2006
Posts: 6
Default '81 Xt250

I know it's old, but it's all I've got.

Just wondering if anybody here knows what I could do to increase performance. The bike isn't that bad at all, but I'd just like to see if there is anything I could do to tweak it. I haven't been able to find any aftermarket parts for the bike, only OEM replacement. ****ty part is, most of the things I'd like to replace on it are discontinued.

Anyway, in the owner's manual it says this for engine specs...

Quote:
Engine:
- Type: 4-Stroke S.O.H.C. gasoline
- Engine model: 3Y1
- Cylinder: Single cylinder
- Displacement: 249 cc (15.2 cu. in)
- Bore and Stroke: 75 x 56.5 mm (2.953 x 2.224 in)
- Compression ratio: 9.2 : 1
- Starting system: Kick starter system
- Ignition system: C.D.I. magneto
.....
I know I could do things like bore it out, etc. but I have no idea where to get the new parts that would be required if that were done.

Anyway, just wondering if you guys could point me in any direction?