Ol drifty; AKA the Mullet

[LawnCrawler]

thought I'd share a project that I've more or less wrapped up. It is complete, runs and works quite well if going around in circles makes you happy.

I picked up a CRF70 with a worn out motor and a swing arm that swung in any direction you pushed it in. First I freshened up the motor with a 51mm stroker crank and a 50mm jug/Piston, then I ported and bead blasted the orig 70 head and installed a new stock cam and a little 16mm carb to keep it nice and snappy. With the torquey new 106cc motor complete, I lopped off the seat stay (salvaging as many stock part as possible and made a rigid swing arm for it to hold a kart axle with 10" tires and fancy store bought sleeves. I call it the Mullet because she's all business in the front and party in the rear.

If I take the sleeves off, she is completely un-rideable; the front just slides and she continues to plow straight ahead. There's probably an important engineering lesson in there regarding differential axles and proper steering geometry, but I just said screw it and put the sleeves back on. I like going around in circles anyway.

 

[frostyflammable]

That looks pretty sweet, nice one. May be a stupid question but two stroke?

--Dan

 

[TT540]

At first I was like, waste of a good bike! But, in the end, I approve of this build. Even has a built in seat warmer for those colder months.

 

[LawnCrawler]

That looks pretty sweet, nice one. May be a stupid question but two stroke?

--Dan

No its a pretty standard horizontal single, four stroke engine you'd find in any Honda Z50, CT70, ATC70, XR-50/70, pitbike or lots of Chinese ATVs and gokarts.

---------- Post added at 01:27 PM ---------- Previous post was at 01:19 PM ----------

At first I was like, waste of a good bike! But, in the end, I approve of this build. Even has a built in seat warmer for those colder months.

wasn't that good a bike; frame and swinger were clapped out from sand and failed bushings. rear wheel was no better and chain wouldn't stay on for 50 ft.

 

[LawnCrawler]

this is the CRF70's grandfather in lowrider form.
One day I'll drag all my mini trails out for family pictures

 

[Texan]

this is the CRF70's grandfather in lowrider form.
One day I'll drag all my mini trails out for family pictures

Nice, I would love to see your Honda bikes. I have really become a Honda fan since the purchase of my CT70 Clone last year. I also have a Z50R, Express, Elite 80 and 4 other various project frames. Would love to get my hands on a real CT70, but they hardly come available, well at least reasonably priced, in my area.