Swapping on a 5.5 HONDA OHV engine onto a BAJA DOODLE BUG chassis....The original Lifan 2.8 HP is really " weak azz sheet " and had to go !
I checked out a bunch of sites and youtube clips for guys into Doodle Bugs and found out the Honda 5.5 HP is the swap that works best....
I'm installing a new Max Force clutch on it that will really let this new engine pull good...I'm shooting for a 50 mph top end with me on it ( 200 lbs ) and from what I have been reading it's totally do able..
I did not want to install some monster 8 HP or larger engine on this project as those are much wider and heavier than the 5.5 we are using is....Braking was also a concern with the added HP and we do have a nice disc brake to stop us...
We have a Bronco Go Cart with a 5.0 HP Briggs on it and today we hit 48 mph with a 150 lb. rider so , this lighter and more powerfull Doodle Boss will be bad azz when it's done....
Tonight I yanked the POS Lifan 2.8 off and test fitted the 5.5 HONDA....I have to get a longer throttle cable, bigger clutch , shorten the chain , modify clutch cover to fit the Honda , wire up kill switch and it should be good to go.....I hope to be testing this next weekend and will get some GPS top speed readings....