I have a sonic v21t that is giving me a head ache
Struggle to get it to run properly, so I think is the bearings failing !

Does anyone have any tips on an engine bearing puller ?

Anyone know where I might get a novarossi carb ?

put a offroad rubber sealed front bearing in it. Put a large shim behind the flywheel cone on the bearing. And great chance your troubles are over.

Main bearings usually make a distinctive noise when their defective.

Greetz JW

When the bearings go funny the engine tends to have a poor idle and the LSN needle can become difficult to tune, and the engine makes distinct rattling noise, which is the sound of the loose bearing.

When ever an engine becomes tempremental to tune or unstable a bearing change can make all the difference.

James.