I just got a 86 250R and not one thing on it has ever been rebuilt and it still runs great but i want to rebuild it cause i think something has to go soon. What is the best rebuild kit and where do i get it. I want to eventually port and polish the head as well as other upgrades but for now i just want to rebuild it throw a pipe and some other stuff one it. IF you have any suggestions on what i can do to make this bike run better and faster please let me know.

 

The cheapest way to notice a big power diffrence is to put a 89cr250 head gasket on it (more compression)


rebuild- wiesco top end works good for me.

 

i like 96 cr250 head gasket, but to save some money i've been buying 1 86 250r head gasket and splitting it in half....
well if you want someone to rebuild your motor send it to triumph motorsports....they do good work..
I like pro-x....
i use a delta v-force reed valve with cr250 reeds....
38mm keihin air stryker....
uni filter...
then just jet it right..