who still makes a 300 kit for air cooled 250r's?

[sx250heath]

who still makes a 300 kit for air cooled 250r's? How reliable are they?

[madmel777]

try this place http://kustom-kraft.com/hondakits.html

[sx250heath]

i am in the process of getting a 1981 atc 250R. When she blows i think i will drop a 290 in her.

[Dirtcrasher]

Jet it rich and allow .006 - .007"s for clearance along with relieving the exhaust bridge and drilling two lubrication holes in the front of the piston.

There are threads on it but Wiseco needs more clearance for those AC motors...........

[sx250heath]

it has a Wiseco in it and apparently it was rebuilt from the crank seal up.