I recently aquired a 70's CT70 complete, it shifts through the gears but has zero compression, It's either the valves are frozen or the rings are shot to hell.. what is the easiest/cheapest/best way to build this up for the CRF, will the ct intake and carb fit in the crf? I want to build this as a second complete motor so I can swap it in and out of the bike with the stocker...is there a kit to convert the motor to cdI? Is it really a big deal to not have the roller cam motor? Thanks in advance!

 

Throw it away and buy a CDI Lifan..... those older motors with points are nothing but problems. Spend the $$$ on a CDI.

 

so there is no way to convert it to cdi?

 

yeah, get a new crank

 

well ignition aside is there any other reasons not to use it, does anyone know the HP they were rated at? Fab do you sell a big bore kit that will work with the 70 head? if so please PM me a price.. thanks!

 

it would be worth more to just fix it up and sell then buy a whole nother motor. people collect those. depending on how good of shape its in, you could probably sell it and make a couple hundred bucks

 

I thought it might be better to use a honda basis for my big motor, are lifans really that good?

 

is it a 4 speed manual clutch motor? if so, pull the tranny and clutch and put them on your crf motor.....if not, scrap it

 

yes i sell a big bore for it, but i wouldnt sell it to you.
those things are garbage. i could name all the reasons why but i wont waste my breath. do like pimpin says and rape it for parts. sell the rest.

 

I have a ct70 manual clutch short block, dont know if the gears are good. You are saying that we can use the tranny to make my 91 z50r a 4spd manual clutch setup?

 

yes black death

 

Thank you :YEAH