4 stroke reliability and parts availability / build advice

[Toby woodman]

sorry, I'm talking about a jackshaft kit that doesn't mount to the two stroke engine

 

[Sidewinder Jerry]

sorry, I'm talking about a jackshaft kit that doesn't mount to the two stroke engine

There's several who sell jackshaft attachments or one could just weld on what they need. It's not limited to just 2 stroke engines.

 

[Sidewinder Jerry]

Here's a video of ways one could put on a jackshaft. Though if doing the build I was talking about you'd want both sprockets on the left side.


View: https://youtu.be/Ld_B1ZO7S20

 

[Toby woodman]

okay. thanks. ill have a look

 

[Toby woodman]

after a bit of consideration, I just don't think the 49cc engines transmission will hold up for me. I am going to go for a lifan 152 engine, with a centrifugal clutch. and a homemade jackshaft with a 32 tooth input sprocket and a 12 tooth output sprocket. if have attached some calculations. do you think this setup could handle hills. do you have any experience with the black centrifugal clutches on amazon.

 

[Toby woodman]

I think this setup would be similar to what the phatmoto rover bike uses. if it wasn't as good at hill climbing as I hoped ii could always go to a 44t rear sprocket or if its not fast enough, I could go for a 32 or 28

 

[Will'smotobikes19]

My engine is a 4 stroke 33cc 1.6 hp Robin Subaru. There's lots of mid-frame and rear rack mounted 4 stroke kits.

Those subarus are good motors I had one on a gebe kit a fee years ago shouldn't have sold it.

 

[Sidewinder Jerry]

Those subarus are good motors I had one on a gebe kit a fee years ago shouldn't have sold it.

Mine is 14 years old and still going strong.

 

[Will'smotobikes19]

Mine is 14 years old and still going strong.

I think mine was from 2004 broke a few belts and the bolts holding the strap on. Ended up using 3 12.9 bolts and the rag joint plates.