2 stroke to 4 stroke clutch question

[waud]

Hi guys I'm putting a 13 hp 4 stroke in my MaxII, it had a 2 stoke. My question is what type of drive clutch should i get and or model. Do I have to change anything in my driven clutch.

[Tomo]

hi
You will need a comet 780 drive series with 1400-1600 rpm enguagement
The secondary eg a 780 series with a 28 degree ramp and either a green or red spring
The sprocket ratios may need changing
Contact Recreatives for recommendation on sprocket ratio
U may purchase the primary and secondary clutch from them also
nb all this will work on a 1 inch straight shaft for the engine
the t20 is a 7/8 shaft

tomo

[waud]

Thank you for the info.