Doodle Bug + Predator 212 = Hauling A$$

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vexvader

New Member
#1
#1
I bought my second Doodle Bug on Craigslist last week. Paid $120 for it. The seller told me it only need a tune up and it would run. Of course it needed more then that. When I got it home I realized that the float bowl for the carb was gone, as well as a few springs. I looked at it good, but it was hard to notice in a grocery store parking lot.

I got it home and decided to pull out the engine and put in a Predator from Harbor Fright. It was a no brainer. A new cab is $30-$40 and a whole now Predator was $98 with a coupon.

Here is a pic of what it looked like when I got it.

MB 004.JPG

Here is what it looks like now. This thing ABSOLUTELY HAULS A$$.

I am 6'2 and 250 and it is so fast it is scary!
 

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Rich Dalton

Active Member
#5
#5
i did the same thing i still have the governor on but what i did was i connected a rod from the throtle lever right to the governor arm so when i twist the throttle it pulls the governor arm and it doesnt kick in gps top speed is 44 mph hauls da mail
 
V

vexvader

New Member
#6
#6
Rich Dalton said:
i did the same thing i still have the governor on but what i did was i connected a rod from the throtle lever right to the governor arm so when i twist the throttle it pulls the governor arm and it doesnt kick in gps top speed is 44 mph hauls da mail
Click to expand...
Wow. How about sending us a pic so we can see the mod?

VV
 
jays0n

jays0n

New Member
#8
#8
The governor is important on those engines, the connecting rod is known to come apart if you over-rev it, someone can give the RPM but I don't remember it being all that high. I wouldn't push the engine past the governed RPM without swapping the rod and flywheel out first.
 
V

vexvader

New Member
#11
#11
In my opinion there is no need to take the gov out unless you are trying to build a drag bike and planing to drop some serious money into beefing up the engine and stabilizing the overall ride and breaking performance of the bike. Mine will do 35-40 mph easy, and I would not want to go any faster than that. I have two doodlebugs and at 35 the front end is shaking and the clutch and chain are whining and the brakes are struggling.

I love the low end torque my stock 212 has. It pulls hard from 0-30. If I don't lean forward and hold on, the bike will come right out from under me. It is plenty of power for me.

When you consider the $ per power ratio, I am get an amazing "return on investment". Sure the drag bikes are faster, but to do it right = big $.

VV
 
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