CRF 250X Upgrade

Well, I just picked up my 250X after having some great work done on it. It went from stock to the following changes:

FMF Q4 pipe and powerbomb header pipe
160 Main jet change
Airbox opened up
Hot Cams stage one cam
Changed to the "R" piston higher compression 13:1

Stock sprokets but I changed to the CRF450 needle in the 3rd clip I believe.

I have the stock dyno results to post and will do so when I have the bike dynoed now after the changes that way you can hopefully see the difference. Ol89'er did the work and he did an outstanding job, thank you again Terry. ;)

I rode the bike at his shop, through his house and around his horse arena and WHAT A DIFFERENCE!! The bike has a whole lot more bottom end and pulls through the powerband. I'm real happy with the work and will post a ride report when this rain stops! I'll also post the dyno results as soon as I can get it done, hopefully in the next week or so. I suggest this work for anyone that wants to bump up the 250X a bit while keeping the reliability high. From what I was told by Terry, the valves looked great and I'll probably change over to the Kibble Whites when I do the next top end.

I think Terry is going to offer this package in the near future if anyone is interested. :nod:

I plan on getting it on the dyno hopefully this week. I have the stock dyno results already so I'll compile them and post it. Just riding it through Terry's house gave me a sense of the unleashed power available. :) If this rain will stop I can take it out and ride it already! Stay tuned.....

Ok, here's the long awaited ride report! Sorry for the delay folks.

With the FMF Q4 pipe, the noise was kept to a minimum. I was extremely pleased with the sound output through the gears and rpm range. We rode in the national forest so the built in spark arrestor came in handy.

At the beginning of the trail, I only needed 2nd and 3rd gear. When I approached whoops or water crossings, I was able to throttle at the last minute and pull the front end up with ease. It was nice to have the same weight bike with more power! The reason I enjoy the bike so much is that it feels light and I don't get tired riding it all day.

Hill climbs were no problem, I could stay in 2nd or 3rd and slow my speed. The torque kept the bike moving with minimal wheel spin. At one point, I almost came to a stop in 2nd gear in a rut on an uphill climb and without clutching it, I twisted the throttle slightly and it pulled right through it without killing the motor. That really impressed me the most during the ride.

One thing I had to deal with was wheel spin on flat turns. Before the motor work, I could throttle through flat corners with no worries of losing the rear end. Today, I did the same and the rear end slid out so I had to shift my weight back and weight the outside foot which helped guide me through it. Not that I'm complaining Terry but it was something to keep in mind now. ;)

We rode for a few hours, starting and stopping, shutting the bike off and leaving it running with no problems of overheating, pinging, or hard starting. The elevations ranged from around 3000 ft to over 5000 ft. The bike ran great throughout the elevations with no power loss. The temperature was around 40 degrees give or take which made it a great day for a ride with some friends, and Thumbs.

Speaking of Thumbs, just a little insight if you ride with him. If you think you're being nice when you slow everyone down to traverse a river crossing, think again. The last thing you'll here is the sound of his two-smoke as he revs past you and fills your boots, jacket, hood and gloves with water! Thanks bud, I owe you.

Hope this ride report helps, I recommend the same set-up for your 250X of you're looking for some bottom and mid pep. Terry will take care of you so give him a shout. Thanks Terry, you rock! I'll work on the dyno as soon as possible.
Elk