Taming a Doodlebug!

[jonbenderr]

Hello all!

So I have a Baja Doodlebug that I acquired last summer. The engine on it was a predator 212 with a bunch of upgrades. I actually pulled that off and dropped it on my go kart, took the go kart engine (Tecumseh 6hp) and dropped it on the bike with a torque converter.

It's just to much power on the thing and it wheelie's almost from the get.

It's a ten tooth sprocket on the tc to a 60 on the axle.

Any suggestions for getting this thing to a nice cruiser speed and chill out the acceleration? Gearing? Smaller engine?

If going back to clutch is a solution, I wouldn't mind, as long as I could avoid burning them up like crazy.

I'm about 240 lbs and this thing still want to toss me off.

I don't care about speed, it would be nice to get it up a hill every now and then though.

 

[ShoppingCart]

Hello all!

So I have a Baja Doodlebug that I acquired last summer. The engine on it was a predator 212 with a bunch of upgrades. I actually pulled that off and dropped it on my go kart, took the go kart engine (Tecumseh 6hp) and dropped it on the bike with a torque converter.

It's just to much power on the thing and it wheelie's almost from the get.

It's a ten tooth sprocket on the tc to a 60 on the axle.

Any suggestions for getting this thing to a nice cruiser speed and chill out the acceleration? Gearing? Smaller engine?

If going back to clutch is a solution, I wouldn't mind, as long as I could avoid burning them up like crazy.

I'm about 240 lbs and this thing still want to toss me off.

I don't care about speed, it would be nice to get it up a hill every now and then though.

Go 10-45.

 

[madprofessor]

10/45 sounds about right, and shrinking a sprocket like that means only removing chain links, you don't have to add links to chain.

 

[DukeKL]

Just curious you tried the 10/45 setup and if it did make a difference. Update us

 

[IsaiahRide]

Just curious you tried the 10/45 setup and if it did make a difference. Update us

Anyone who have tried it before? I am also curious to find out the difference.

 

[landuse]

10/45 sounds really high. Give it a go though and see what happens. I personally would have tried a 52 first

 

[madprofessor]

Too much work and maybe extra expense for sprockets in changing to something that isn't a sure thing.
Better to jump strong right from the start and cure the current problem, undesirable wheelies from a standstill, and he says speed isn't important. 10:45 (4.5:1) ratio is more sure to get that done than any ratio that's higher.
If more speed becomes desirable later, only then would it be time to experiment with higher ratios.