Sirio .27 monster big block

[zeus r/c]

So i have this sirio monster big block .27 need some info on the 1way bearing shaft and back plate so i can use this engine with out a bumb start trying to put on a roto start but i need to change the shaft and back plate first heard alot of bad things about the pullstart so i dont want to get that need a 6 mm shaft and a back plate to match so i can put a roto start on it thx guys for any input

 

[zeus r/c]

So i have this sirio monster big block .27 need some info on the 1way bearing shaft and back plate so i can use this engine with out a bumb start trying to put on a roto start but i need to change the shaft and back plate first heard alot of bad things about the pullstart so i dont want to get that need a 6 mm shaft and a back plate to match so i can put a roto start on it thx guys for any input

The pics show 8mm shaft looking to use a 6mm shaft which means ill need to change the back plate as well heres the pics the ba ck plate and shaft 8mm

 

[TeknoJ]

So i have this sirio monster big block .27 need some info on the 1way bearing shaft and back plate so i can use this engine with out a bumb start trying to put on a roto start but i need to change the shaft and back plate first heard alot of bad things about the pullstart so i dont want to get that need a 6 mm shaft and a back plate to match so i can put a roto start on it thx guys for any input

Just use a bump starter.
Option2 is get the pull start and stop believing everything you hear. If you didn't hear it here, then it isn't true.

 

[zeus r/c]

Lol thats a good 1 i have a bumb start i dont like them i may have found something i csn use to be able to use a roto start bug it will have the pullstart with it thx brother