HF 212cc capable reverse gearbox?

[McChicken Messiah]

I'm mounting a HF 212cc Predator with the crank facing right, and I need to reverse the PTO.

The engine must be mounted this way, or I'll have to do some serious hackery to the frame, which I would really prefer not to do (I don't have the proper tools to fit the frame for left crank facing mounting, and I'd still need to setup a jack shaft for my purposes).

After some digging, I haven't found a reverse gearbox that I'd feel safe using.

A sturdy reverse gearbox or some other suggestion as to reversing the PTO without fab would be extremely helpful.

Keep in mind, I'm not going to purchase a new frame.

 

[silverbear]

Pictures always help. Welcome to the forum.
SB

 

[McChicken Messiah]

This is what I'm working with, space wise I won't be able to mount it "the right way" without chopping the frame and bracing the engine from the gas tank mount.

Thanks for the welcome SB.

 

[dtv5403]

You can try a search, someone around here made a reverse jackshaft, not sure who it was though.

 

[dtv5403]

Here is a thread on a forward cylinder 212: www.motorbicycling.com/showthread.php?t=40383&highlight=reverse+predator

 

[McChicken Messiah]

Ahh, guess I missed this post on my first searches here. Though, this is similar to what I was originally thinking.

Hmmm, any suggestions out there on a gear train parts supplier?

 

[T3KBiker]

Hey I know this is 2 years old now but was it ever figured out? I'm attempting the same thing

 

[Tony01]

Just mount the engine with the cylinder vertical. I have around 500hrs on my bottom end like this no problems. Run 19oz oil.

 

[msrfan]

Go friction drive. It is already reversed.

 

[thatotherguy00]

This is what happens when you try this

 

[thatotherguy00]

If you can find someone to make an inverted cam in theory you get the motor to run and reverse
you would also have to make a different pull start

 

[Sidewinder Jerry]

Seems way more options will be available if the gas tank is relocated.

 

[Venice Motor Bikes]

View attachment 110878
This is what happens when you try this

Actually... I would lay the blame on that cheap wheel!! (A stronger wheel wouldn't fold like that).