You are giving bad advise.
A commonly available centrifugal clutch CAN be used in pedal start mode on the 2-stroke Chinese motorised bicycle engine.
(sigh) That is far from common, the clutch bell is not only on a freewheel, it is directly connected to the engine and has the spiral gear to connect to the output to spin the bell when you pedal.
That IS NOT spinning the clutch bell and expecting it to engage the clutch pads, which is all I have ever stipulated and simple fact.
Since that design has taken away your manual clutch, whenever you pedal it pulls the motor.
Note he doesn't show starting it?
Ever try to bump start a 2-stroke from a dead stop without drag-free pedaling to get some momentum to help?
Even worse, you have to drag the whole engine when you want to pedal the bike with engine off!
Best hope you never run out of gas or just want to push the thing around, if the wheel moves forward the engine turns with compreesion and tries to start.
All that special fabrication of special parts and all it does is let you
not pull in the clutch to stop with the engine running?
That has to be worst trade-off in the history of 2-stroke MBs and the only bad advice in this topic.
Since I am a beginner at these type of things, I have to ask if wd40 is really good lubercation for the crankshaft extension bearing?
Hi JohnSteve, this is just a dumb thiing to do for anyone, especially a NooB.
WD40 is a solvent not a lubricant, the video reference to it was a poor example for the cans lift up straw spray can, I don't know of any actual oil like that so why he used it as a reference is beyond me, but then again so was the whole contrived object of it to begin with.
AGAIN THE BOTTOM LINE IS GET A PULL START IF WANT A CENT CLUTCH!