This is something I'm HIGHLY interested in doing. Once I get the xt250, the tw will become my frankenbike. Next mod is the tt600 tank.
What's cruising speed with this setup compared to stock?
Is there a tutorial somewhere? parts list?
Hey, RonnyDog, yours was one of the builds that I followed, so thank you! Do we get a special flair or something to put in our signatures?
CS1983, I'm not sure if there is an official walkthrough, but the next best thing are the threads on this forum. I posted the links to a bunch of them in my thread (so that I don't have to x-post)
I have been pleasantly surprised with the increase in performance of the MegaCycle camshaft. A slight loss of power in the lower speeds but still plenty of power to crawl over things and a pretty good gain in the higher speeds. I chose the lesser of the two performance camshafts -- 261-00 or 26100.Yes I'm using the stock camshaft. I think it may help to use a use a custom cam to move torque from the low end to the top end. This 250cc has lots of low end torque.
Elime thanks for chiming i always appreciate your input. I believe you are correct it was my next step in this 250 build. The raptor 250 carburetor has really changed the performance of the bike in going from the stock carburetor. I am hoping somebody tries this carburetor on the 225 or a stock bike .will ck there camshaft, did you run heavy duty springs?I have been pleasantly surprised with the increase in performance of the MegaCycle camshaft. A slight loss of power in the lower speeds but still plenty of power to crawl over things and a pretty good gain in the higher speeds. I chose the lesser of the two performance camshafts -- 261-00 or 26100.
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The valves open more and stay open longer -- your engine will breathe better and therefore make more power. You may need to rejet the carb. It does take a little "getting used to".
In case you are interested:
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Great input vanilla gorilla right on the money. I got 46 miles to the gallon pulling my TW trailer from close to Utah all the way to tombstone through Arizona with a heavy load.I've had my 225 6 speed in for a couple seasons now and it went so well I'm at it again. my current set up was a 2001 ttr bottom end with the tw jiblets like the output shaft and the left cover. I also used the high comp wiseco piston.
It pulls significantly harder than the stock motor did freshly rebuilt and the gears are much more usable IMO. I hated that the 5 speed had the huge jump from 4th to 5th and as such I ended up back and forth quite a bit on gravel roads. I will admit there is a little more busy work with the 6 speed, but well worth it. The clutch is also better. As someone who rides the tw pretty hard I can attest that the 6plate clutch with ebc plates and springs was an improvement for me.
fuel economy seems to be right around 50mpg regularly and that includes off road on road and lots of hard driving....... Ive had over 75, but I use 50 as a reliable baseline for the jackassery that I produce for calculating range.
over all Im very happy with it and what power and drivability are like. I'm hoping to get another noticeable step in performance with the second go around.