Edited Date/Time
8/2/2012 7:55am
2002 YZ 250 for $1,300. Took it out that afternoon. The motor was strong, but the suspension, front wheel bearings, and plastic need attention. It has a new top and bottom end. It has a 50 tooth sprocket but I think I need a 51. Had a hard time pulling 2nd out of corners. What do you YZ guys think about gearing? I'm typically a Pro Circuit buyer but is that the best for this bike?
The Shop
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Luxon 4-Post Bar Mounts
$189.95 - $239.95
Had a PC pipe on it but went back to stock.
Just felt better in the sand.
Kept the gearing stock also.
Coincidently I inherited an 03 hammered YZ250 for free. It is all roached. I am going through the entire thing. Can't wait to ride it. I am seeing more and more of this stuff going on.
Sure appears that way. Just a year or two ago there would be a whole flock of 4 stroke lovers quick to attack a comment like that. Not so much today. I think everyone has grown a little weary of the high cost of admission. Hard to go wrong on a free 2 stroke 250! The steel frame YZ's are some good looking bikes too.
Digging the blue Macsimizer. I have the same one but in the triple bank version. Those things have skyrocketed in price over the last ten years. Always wanted to get the top box for mine but when it finally became available it was nearly two grand more than I had tied up in the bottom box.
Should be a 450 4 poke killer!!!!!! It is listed on their website but you should call and talk to them rather then just buy it now on the website.
As for Pipes, most do not like the PC. Many love the stock pipe and I think it is the 05 stock pipe that seems to work best but is hard to find. The FMF fatty is similar to stock and strong everywhere. I have the Factory Fatty and FMF shorty silencer on mine. Love it.
Many seem to think the SST pipe is difficult to jet correctly and causes the bike to run lean on top. Some have said they have fried pistons because of this.
Many folks love the RB designs head mod. He basically tightens the squish and cc's the bowl properly for your fuel.
I have the N3CJ needle in mine. 1/2 clip leaner than the stock N3EJ and cleaned it up just perfectly. Lots of guys are running stupid lean jetting like 42 pilot and 168 main but mine rips with the stock 50 pilot and 178 main, even at 4,500 feet. Might be because I run 32:1 where lots of guys run 40:1 or 50:1.
They are known to have detonation probs when on pump fuel or with lean jetting. There is a lot of info on TT about setting your timing properly to prevent this.
I run Maxima Super-M. I suggest avoiding castor oils as they are too gummy and clog up the powervalve. They also rot away all the brass in your carb if you let it sit in the bowl.
I have the stock 14/50 gearing and pulling 2nd out of corners in no prob. I can even use 3rd and a little stab of clutch if the corner is not too tight/deep.
Consider putting the 06+ SSS forks and 18mm shock on if you can find them cheap on ebay. Far superior suspension.
That's what I had on mine (a 99) It was a very good combo. Tons of torque.
Blue?
or Black?
It seems if you get the jetting a little lean and/or the timing advanced that is when you will have the detonation. Lots of guys say the RB head mod cured their detonation and helped clean up the jetting and exhaust spooge problems.
Pit Row
In the process of flicking my '97 YZ-250. It was a sad day dropping it off at the shop but ya gotta move on sometime I guess.
Not bikes, bike. I just turned it black after the blue version got all ratted out. My own version of BNG :-)
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