Author Topic: Motorcycle engine to driveshaft?  (Read 39189 times)

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Offline Dreamweaver

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Motorcycle engine to driveshaft?
« on: September 04, 2009, 12:43:01 PM »
How is the connection made from a motorcycle engine to a driveshaft made? Ive searched the net and seen a coupler that appears to go on the trans output side but what allows for the movement of the rear end?

Some sort of slip joint?

Offline sockjohn

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Re: Motorcycle engine to driveshaft?
« Reply #1 on: September 04, 2009, 12:51:26 PM »
The only one I have seen was a Lotus 7 replica, and was basically a pillow block to support the end and a sprocket adapter.

Might see if some of the kit makers show photos of the parts online.

I'm not sure I really understand your question though  :?


Offline ramjet

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Re: Motorcycle engine to driveshaft?
« Reply #2 on: September 04, 2009, 01:21:51 PM »
You use a driveline adapter on the out put shaft of the motor, then a U-joint then a driveline, with a slip jt. then another U-jt. at the rear end. Check out Dwarf Car Racing, on the web.

Offline wolcottjl

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Re: Motorcycle engine to driveshaft?
« Reply #3 on: October 27, 2009, 03:23:41 PM »
Quaife makes some pieces for motorcycle engines in cars including a gearbox with reverse.

Here is one retailer that shows some of the units.

http://www.autotech.com/quaife/Motorcycle/cycle.htm?main=cyclecars.htm
Joel Wolcott
Moving to 2 wheels in 2010

Offline Dreamweaver

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Re: Motorcycle engine to driveshaft?
« Reply #4 on: October 27, 2009, 03:42:55 PM »
Thanks guys, yall got me pointed to the right places.

Offline Dakzila

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Re: Motorcycle engine to driveshaft?
« Reply #5 on: October 31, 2009, 12:38:33 AM »
Dreamweaver,

If the engine is mounted sideways you can use an automotive U-joint. Any shop that build Legend Cars can help you out with the adapt that mounts the U-joint to the tranny output shaft.

Buzz
"Marred by indecision; vision is blurred, confidence deteriorates and progress stagnates."

"It's not about what you did.....It's about what you do!"

 "Regret is part of the aging process and should never be confused with failure."

Moonshiner

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Re: Motorcycle engine to driveshaft?
« Reply #6 on: October 31, 2009, 01:00:41 AM »
you could use a motorcycle engine that is shaft drive ,i have seen some home made trikes built using a modified miata drive shaft and the miata rear end , cost effective and works nicely .

Offline mike mendoza

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Re: Motorcycle engine to driveshaft?
« Reply #7 on: January 29, 2010, 04:12:54 PM »
You use a driveline adapter on the out put shaft of the motor, then a U-joint then a driveline, with a slip jt. then another U-jt. at the rear end. Check out Dwarf Car Racing, on the web.
that's how i did it with my Dwarf car.   How about on a Harley?

Offline Constant Kinetics

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Re: Motorcycle engine to driveshaft?
« Reply #8 on: July 17, 2010, 10:44:26 PM »
you could use a motorcycle engine that is shaft drive ,i have seen some home made trikes built using a modified miata drive shaft and the miata rear end , cost effective and works nicely .
There are some quick Yamaha maxims that are already set up to run shaft drive. The water cooled maxim x series had the genesis engine (dual overhead cam, 5 valves per cylinder, 10,000 RPM redline) makes over 100 hp stock and responds well to 4 into 1 exhaust, carb re-jetting, or turbocharging. There are also big 1100cc versions that are a solid platform to build with.
Wierd is good

Offline Tonerjockey

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Re: Motorcycle engine to driveshaft?
« Reply #9 on: December 20, 2010, 10:24:00 PM »
This is the way I do it:




Guzzi V7 Sport
YMMV
Alex
750cc P-PP (73 Guzzi V7 Sport - Porco Rosso)
50cc SC  (Weed Whacker)
100cc SC  (Heat Lightning)