flywheel could be the answer

[Pedalnwolf]

centrifugal clutch.

 

[Fabian]

pull start.

 

[HeadSmess]

harmonic balancer with synchromesh

 

[keatonx]

harmonic balancer with synchromesh

Always wondered about putting a harmonic balancer on a little single cylinder

 

[HeadSmess]

the harmonic balancer in old aero engines, and still occasionally used, was to have the counterweight on the crankshaft suspended on very short linkages, allowing it to rock back and forth slightly

 

[Deleted member 12676]

Everyone should balance their crank.
Just buy the drill bit I recommend on my site, take the crank out, drill it, and put it back together.
If there is no way in hell you are going to do that then the least you should do is put a lighter weight piston pin in. I recommend some on my site.

 

[darwin]

Anyone notice the date of the OP? We're in a timewarp Scotty, beam me up!

 

[HeadSmess]

harmonic balancer with synchromesh

hence the smart ass reply not my fault people kept on with it!


im living in the 70's though i was never there