Reverse a 4 stroke 196cc with pull start?

[moneyfresh]

ive managed to put together a atv with a right sided crankshaft that connects to a rod with bearings that transfer the motion to the left side sprocket on the axle. but my problem is... when i had it all set up i started it up and it went backwards and i was prettttty ****sed

so anyway. i was wondering if it was possible to switch the carb and exhaust to do the same thing? just in different direction, i know i might have to change the values and timing maybe even the cam. but i know it can be done. i couldn't understand why not.

any comments? concerns? additions?

 

[moneyfresh]

the motor is a Mitsubishi btw

 

[Wheres my dog]

Why not just run a jackshaft?

May be easier then trying to reinvent the engine...

 

[rustycase]

A jackshaft will not reverse rotation.
It will require a pair of gears to accomplish that effect.
rc

 

[Wheres my dog]

A jackshaft will not reverse rotation.
It will require a pair of gears to accomplish that effect.
rc

Sorry if I am understanding this the wrong way...

He wants to reverse the direction of the engine... wouldn't this be the same as transferring motion from one side to the other instead of turning the engine output 180 degrees?

 

[rustycase]

LoL

WMD, you can be assured I'm thoroughly confused ! LoL

Perhaps he would like to re-cam the engine and rotate the head 180% ???
...and all the other stuff necessary...

Fun stuff! ...dontcha think?
THIS is a great board for people thinking outside the box.

Best
rc

 

[Greybeard]

You could, if you had enough money, create a reverse running engine. It would require a custom camshaft, modification of the ignition becasue it's now running advanced and in reverse it would be retarded, and a custon pull starter because the one on it only turns it one way.

The easy way is to unbolt the engine, and turn it 180 degrees. If you need to get the drive to the other side of the bike, you use a jackshaft.

 

[rustycase]

You could, if you had enough money, create a reverse running engine. It would require a custom camshaft, modification of the ignition becasue it's now running advanced and in reverse it would be retarded, and a custon pull starter because the one on it only turns it one way.

The easy way is to unbolt the engine, and turn it 180 degrees. If you need to get the drive to the other side of the bike, you use a jackshaft.

I spent most my life ignoring the greybeards.
Now that I got my own, I get ignored a lot.

Such is life.

rc

 

[Wheres my dog]

As I said as well.... leave the engine alone and just use a jackshaft!!!

 

[HeadSmess]

ha ha ha ha! roflmao!

oh, tears of laughter! you got the engine in backwards!

sorry for takin the mickey, but thats GOOOOOLD!!!!! oh, i wish id seeeeeen it!

you never thought of checking beforehand? that the engine spun the same way as the desired direction of travel?

oh my aching ribs....

so, how many weeks of determination were wasted?

freakin got the engine backwards...oh my gawd....

looks like somebodies gunna be busy with an angle grinder and the welder while they turn all this around and set up the drivetrain again...

and saying that an engine has a "right handed crank" is irrelevant. they either rotate clockwise or anticlockwise at the PTO.


how about simply turning the seat around and saying its front wheel drive?