sarrah44

Member
Mar 16, 2002
11
0
I've a '98 road legal XR250 (pretty stock). The stock carb is not only restricted but very small, only 22mm. :uh: I found that the gear ratio and engine of this bike is not much different from the XR250R model except for the carb, the exhaust system and compression ration too. I've change the pipe + muffler to the XR250R type but still need to change the carb. I'll need help on this as I don't know what is suitable and good for this bike.

Any idea how to mod this bike? Pls help. :(

Thanks!

Specs:
Type - BA-MD30
Engine type - MD17E
Engine type - Air cooled 4 stroke OHC4 valve one cylinder
Displacement - 249
Inside diameter x distance (mm) - 73.0×59.5
Compression ratio - 9.3
The highest output (KW [ PS ] / rpm) - 21 [ 28 ] /8,000
Largest torque (N * m [ kg * m ] / rpm) - 25 [ 2.6 ] /7,000
Carburetor type - VE88
Gear Ratio
1st gear 2.769
2nd gear 1.882
3rd gear 1.380
4th gear 1.083
5 speed 0.923
6 speed 0.814

xr250-2.gif
 
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