1999 Cr250

Little things - the seat bracket on the right side is prone to cracking/breaking. The lower shock bearing will wear out faster than the other bearings in the linkage.

The bike is similar to your '98, but with more mild porting and a conventional (no power jet) carb. You will probably get better fuel range and longer piston life with the '99 cylinder.

I also have a 99 CR250. It is supposed to be slightly more powerful than the 97-98. The porting is not milder, its just different to allow the use of a conventional carb and give it better bottom end, but there have been complaints about not enough top end power. Mine's pretty fast also, it hangs if not outruns other 250's. I have problems with the bike "loading up" when I get into tight spots (I ride in the woods mostly), but I can put it in neutral and hold the throttle 1/2 way and clean it out and everything is fine. I just rebuilt it after the connecting rod bearing on the crank came apart and all the pieces got up into the cylinder. So after a new crank kit (Hot Rods Crank and Conn Rod), bearings, Vertex piston kit, trans bearings, all new linkage bearings, wheel bearings, rebuilt shock, new plastic, new seat, and more stuff I can't remember, I've got a "new one". I like the bike a lot and enjoy riding it. The only complaint I have about the bike is the vibration. It was a problem on the Generation 1 frames (starting in 97 with the CR250 and ending with the 99). They used rubber mounted handlebar clamps in 99, I also installed some Renthal Fat Bars at the advice of a friend to help with the vib prob. Good luck with yours.

the rear pipe mount that mounts to the frame the little bracket is prone to breakin off too because pipe vibration keep your rubber damper fresh!! power valves get dirty alot and jam up

I have had both seat brackets crack with mine. Vibration is a problem, but not unbearable. Power hits hard right off the bottom. I have leaned the main and pilot jetting some, so i have no problems loading up when I'm on slow single track trails. My bike keeps up with all of the newer bikes, just doesn't rev quite as far as I would like. Superb low end. Never had any problems with the power valves getting mucked up. I run Motul 800 32:1, clean as a whistle. I have put silicone in the bars to help with vibration. Helped some. I second the post about the shock linkage. Vigilant maintenance on this is a must. The 99 is extremely reliable and a strong pulling motor. i run a steahly flywheel weight which tames the hit a tad, and helps with stalling on hills. After riding newer bikes with "smoother" powerbands, I can't wait to get back on my bike. Love that motor!

darringer:
What are your carb jet settings? I'm running all stock in mine (#42 slow jet, R1370DKA needle, #190 main jet), it has a carb spacer and I'm running a set of Boyseen Super Stock reeds.

Bwood, at the present time, I have gone back up to a 45 pilot( Easier starting). 2 turns out. Stock needle, clip in 1st groove (leanest). I have been running a 175 main for about a year. leaning the main circuit has given me a little more overrev. This is at sea level to about 1500ft and around 60 degrees. I have Boyesen Pro Series reeds, FMF Fatty pipe, a powervalve spacer, running Motul 800 @ 32:1. Bike runs crisp with slight spooging from the silencer. The bike will idle all day and with a few blips of the throttle cleans right out. I have never fouled a plug, or even had it load up on me, even with crawling through hilly, single track sections most of the day. I hope this helps you.

Thanks for the reply. I just got done cruising through the alleys around the neighborhood. Its loading up while turning around and coming to a stop. I checked the reeds last night they are slightly flared out so I ordered some more today. Anyway thanks for the help.