Fuel not flowing through carb into cylinder body

[NukeSnicks]

If you take the intake manifold off and turn over the engine you can look in the intake port and see the piston. If there is no hole in the side of the piston then take it apart.

when I opened up the cylinder body I saw that the piston had no port holes other then the holes for the pins

 

[NukeSnicks]

Ok so nobody Has really answered my question though... what would cause for the engine to not be able to pull gas from the carb?

 

[mark20]

reeds require a vacuum to open and close, these engines run backwards to normal ones (they run clockwise vs normal engines run counter clockwise)
to fix this you need a hole in the piston to get the vaccum at the right time.
as people said, try a windowed piston. it should work then, and be sure to check for air leaks, as major ones can stop the motor from creating a vacuum altogether.

 

[NukeSnicks]

reeds require a vacuum to open and close, these engines run backwards to normal ones (they run clockwise vs normal engines run counter clockwise)
to fix this you need a hole in the piston to get the vaccum at the right time.
as people said, try a windowed piston. it should work then, and be sure to check for air leaks, as major ones can stop the motor from creating a vacuum altogether.

Ok does the one from bike berry work? https://www.bikeberry.com/66-80cc-2-stroke-dual-window-piston-1.html

 

[mark20]

Ok does the one from bike berry work? https://www.bikeberry.com/66-80cc-2-stroke-dual-window-piston-1.html

Yea that should work. Just be sure you have the right crankshaft for it (theres a 38mm one and a 40mm one, big difference in piston types)

 

[NukeSnicks]

Yea that should work. Just be sure you have the right crankshaft for it (theres a 38mm one and a 40mm one, big difference in piston types)

Ok I’ll take measurements. I think mine is 40mm though.

 

[NukeSnicks]

Yea that should work. Just be sure you have the right crankshaft for it (theres a 38mm one and a 40mm one, big difference in piston types)

Which piston is the 40mm one?

 

[HumanPerson]

Which piston is the 40mm one?

High hole piston or low hole piston.

High hole for the 40mm and low hole for the 38mm con rods if i remember correctly.

Bike not running.

So I was riding full throttle on my new Chinese 2 stroke engine. I know dumb. Hasn’t had even 50 miles on it yet and now it does not run. It started when I changed the spark plug to an NGK B6HS which made is run better but the idle was way to high so I moved the c clip in the carburetor pin to...

motoredbikes.com

and the search query: https://motoredbikes.com/search/22839/?q=high+hole+and+low+hole+piston&o=date

 

[GreasyChris]

Long rod cranks take high hole piston,
Short rod cranks take low hole piston.
What letters and numbers are stamped on your connecting rod?

 

[GreasyChris]

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