Piaggio typhoon boggin

Please help My bikes bogging after i get on it to ride but it rides fine at 1/4 throttle what can be wrong its not my carb jets or gaskets

 

Did it suddenly start doing it?

 

The bike was spares or repairs he said it didnt run and it just needed petrol then i did a rebuild on the engine found the pully was making a mark in the cranck arm swapped that out for a new one then the piston had the rings stuck in a bit so i free'd them up and put it back together with all new gaskets and it rides fine on the stand? Its weird ik its not the carb it works fine on my nrg

 

Can the piston and rings be doing this new kit? Maybe

 

Rings yeah. Get them changed.
But a carb swapped between bikes is no indication on the carb being setup right or wrong, 2 identical motors can have different settings.

 

Well i tried 3 different carbs all set up to 70cc bikes i was thinking its the piston everything is good condition other than that so about the piston do malossi a/c piston work in a motoforce a/c kit because i cant find any motoforce pistons online lol

 

Errr I wouldn't know. If the bore size is right it will fit, but the crown to pin might be different, the skirt too. See if you can get some measurements before you buy one.

 

Thats crown to pin (NOT a piaggio motor!)

 

Im going to save that bore for another bike and use a new one i will let you know how i get on

 

I changed the bore kit, exhaust, manifold, wires and tubes done the gaskets and seals in the carb and engine it has an air filter it idles fine and im still getting the same problem it rides fast but i have to only give it a little throttle its like it cant handle it cdi maybe next?

 

Go down on your main jet, could be running way too rich and bogging out.

 

Its not the jet i had a 80 jet now its got a 70 its still doing it i just come back from the garage anything else you think it could be mate

 

Today i tryed
two different carb two different manifolds two different reed blocks and reeds two different bore kits nothing is working and i even changed the cdi

 

Hmmm stator/pickup maybe?

 

What am i supposed to be checking out on the stator? Because it works does it not i dont know too much about electrics i think its an original stator and the bikes not too old either

 

I know you can check them, but I cant remember how. Marsh might know

 

I used a different stator of a working bike still not working i think

 

But the spark plug keeps coming out black and the oil pump settings was right i put more slack on the pump to give less oil but its still black af

 

Maybe its running super rich? Or the crankcase is full of oil?

 

I can get the bike to rev up so i imagine the oip would burn up if it was a lil

I have changed everything but the oil pump and i cleaned out the engine washed it out with petrol so i dont know why its got so much oil i will change the pump tomorrow maybe and let you know how it goes again