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Stooperbike you are so right about the bottom-end. my bike is stock but i love the power band. when im done with this conversion i plan on sending the top-end to eric gore im sure he can get some more power out of this motor. hey man you guys sound about my age but ill never tell LOL. one other...

thks Tdub13 . it is hard seeing my 85 frame sitting there part ot me is saying what the .... LOL. i think when finished ill be satisfied though .thks

ok heres the deal. i know this motor is down on power , but thats not why im doing this build. im doing it because well i can. this build will cost me hardy nothing by useing my existing motor. if nothing else ive opened the door for those who have a 1986-1991 motor to know they have another option...

finally done with rear disc brake conversion. really not that hard. some of the things were just bolt on like the swingarm. i had to make the brake pivot and the bracket for the reservoir these had to be welded onto frame. its not exactly like honda did it but close enough for me. who said it couldn't be done...

this is updated photo of bike with rear rim. rim is from 1989 cr 250. i still need rear rim adjusters will order them today . i had to use chain from 2009 cr 450 as stock chain was too short.chain was a direct fit. i have metal for rear brake pivot and brake reservior so should have that weld...

Edited Date/Time: 4 minutes ago tomcat1 wrote: this is updated photo of 1985 cr 250 with 1987 honda cr 250 swingarm 1987 cr rear disc brake system and 1996 xr 400 pivot plate. this is mock up only.still waititng on rear rim. once i get rim and measurements right i will weld pivot for brake petal and brake reservior...

Wow you really know your Hondas. Its good to get a possitive comment thks. Im going to use a1996 Honda xr 400 pivot plate to mount the master cylinder a 1987 cr 250 swingarn and brake system. The only problem i can see is mounting the brake peddle. Any suggestions?

Ok i got most of the parts to do disc brake conversion just waiting on rear rim. Will try to do conversion wth out any welding.Will post pictures when done.

yes it runs very good. I actually gained about 2 ccs. The 1985 jug had 246cc were the 1987 jug has 249 ccs the stroke is the same. It has a 1987 cr wisco piston kit and gasket set. I was not sure it would work but it does and the power valves work. it has alot of power. i...

you know before i got this bike i was seriously looking at those Chinese dirt bikes they are only about 1600.00. i told a friend about them and he said no don't do that those are no good. so he had a friend who had this cr sitting for along time, but he told me put some money into it...