First Bantam

[ReubenD3#]

D3 Major
Starts fine but fills the street with smoke.
I know they are smoky but this is wayyyy bad.
Mix30:1
Removed head- appears to be new +060 piston.
No sooting at all very clean.Plug not fouled.
Bore appears unmarked.
How do I know if previous owner fitted rings correctly? pegs alighted but are the rings  square section or chamfered?
Black burnt  oily residue blew out of exuast joint.

[Stubaker58]

I'd put it back together and go for a long run!
The smoking should settle down, there's probably a lot of oil in the silencer which will burn off.

[rhyatt]

As Stubaker says,
Just go for a good long run , but be conscious of a clearly rebored cylinder and piston.
Oil to petrol 25 to 1 and basic 2T oil.
It'll clear up on its own

[Allan G]

keep an eye on the gearbox oil level. if it keeps going down then you could have a crank oil seal problem.