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So I baught a 2015 Ktm sxf 250 it came with larger aftermarket radiators. Last time I was at the track (wareham MX) I noticed a couple drops of fluid dripping from radiator overflow line not like a huge boil over there was no steaming or anything just some fluid dripping on header.., due to Ktm routing the overflow line...

I just baught a sxf250 it came with orange hubs stamped victory I need to replace the bearings but can find the mfg to order from. I know on the tusk impact the oem Ktm don't fit so I'm assuming the same with these victory ones. Does anyone know the mfg of victory I googeled it found nothing please help...

So a few months ago I had a problem with my bike popping and losing power I was told to rebuild the motor and also to swap out fuel pump seeing how the tens are known for faulty fuel pumps well finally was able to go back to track today and it still popping under full throttle when it does...

So I installed s new piston with gaskets when I was installing cam I realized the cam chain guide was installed wrong. I had the head torqued so I had to undo everything flip chain guide around sndvre torque the head. My question is is the head gasket still good.?? I did not run the bike so no heat cycle...

I installed a new piston today and when I was installing the retaining clips(c clips) on one side the retaining clip that I installed is with the open end lined up with the relief notch used to remove them. When I looked in the manual it said not to....to install the opened end at 6 o'clock. Will this affect any...

So I have my motor torn apart due to piston replacement. While my motors apart I'm wanting to give my bike a little more power. Its stock now except for 2013 fuel pump, high comp wiseco piston, power bomb header, power core silencer, Barnett complete clutch. I'm thinking maybe a cam? If so what stage or brand? or programmer what...

I decided to replace the piston on my 10"crf250r after taking out the old one piston And compared it to the new wiseco piston everything is the same. Height, diameter, wrist pin size, ring size etc. but when I flipped the pistons upside down I noticed the oem one has channel where the connecting rod sits that is almost 4mm...

I took the old piston out of my bike on the bottom its marked HF4 KENM 24W. I baught a replacement wiseco piston and the opening on new piston where connecting rod attaches has a larger opening. Why. Wrong piston? The guy I baught bike from so far has lied about everything on this bike so I don't know what...

So I was at local MX Track today and first few laps bike ran great then suddenly it started to pop and backfire mid Throttle under acceleration almost like there was water in my gas or a bad plug. I drained out the whole tank and added new fuel I just baught and also installed new spark plug. problem was...