diference between bicycle engines?!?

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hotrodseanxx

New Member
Apr 17, 2008
28
0
0
NJ
Does anyone know the difference performance wise between the wizzer 49cc 4-stroke and the 70cc 2-stroke??
I only know this bout the 4-stroke and 2-stroke:
Engine type Air-cooled 4-stroke OHV single-cylinder
Displacement 49.1cc
Bore X Stroke 41.8 X 35.8 mm
Maximum Power Output 2hp(1.5kw)/ 6,800rpm
Compression Ratio 7.4:1
Carburetor Float Type
Ignition Transistorized Magneto
Starting System Recoil Pull-Start
Fuel Type Regular Unleaded Gasoline
Fuel Tank Capacity .5 Gal (1.89L)
Lubrication System Forced Splash
Oil Capacity 8.48 ounces (250ml)
Engine Oil SAE 10W30
Air Filter Semi-dry
Throttle Twist-Grip
Clutch Automatic Centrifugal
Transmission Shiftless Reduction Gearbox
Final Drive Chain-drive

2 Cycle / Air cooled
70 c.c.
30+ m.p.h.
Manual Clutch
Chain Drive

Thanks
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
235
63
up north now
Re: diference between engines?!?

50cc+4 stroke= slow and smooth.
67.5cc's+2 stroke= double the power, half the smoothness.
 

HoughMade

New Member
Apr 15, 2008
624
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Valparaiso, IN
Re: diference between engines?!?

A Whizzer engine 138ccs, not 50ccs

http://www.whizzermotorbike.com/NE5Brochure.htm

You must be referring to some other engine.

As for the comparison- I will put my 49cc 4 stroke up against a 48cc 2 stroke on power- and I dare say, some 69 cc engine. In theory, 2 strokes have an advantage, but the difference between a Chinese 2 stroke and a Honda 4 stroke is more than how often the plug fires.
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
235
63
up north now
Re: diference between engines?!?

Sean, that's a standard frame mount set up some here run. Most run the two stroke.
 

hotrodseanxx

New Member
Apr 17, 2008
28
0
0
NJ
Re: diference between engines?!?

wow wait where did the 138cc come from?! and aren't all a frame mount engine? I'm a little tired and confused been a long stressful night!!!:-||
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
235
63
up north now
Re: diference between engines?!?

The "Whizzer" is a 138cc 4 stroke, the frame mount "wizard" is a China built 67.5cc two stroke. The Whizzer is built in Taiwan, the China-co. engines are built in China, a slight difference.

A Whizzer is 1600 bucks, a China-co. kit is 200.
 

thatsdax

Member
Feb 22, 2008
869
1
16
www.thatsdax.com
Re: diference between engines?!?

My Titan 48cc 4 stroke will run with any stock DAX 70cc 2 stroke engine kit. They are very very close for sure. Pretty much even. No kidding... Enjoy the ride..
 

MotorbikeMike

Dealer
Dec 29, 2007
477
1
18
Sacramento
Re: diference between engines?!?

Differences? If you even hear a Whizzer you'll know the difference!

There is no comparison to a Whizzer, when riding any other currently made, or available to make, motor-bicycle.

You can count on it!

Mike
 

deacon

minor bike philosopher
Jan 15, 2008
8,117
3
0
north carolina
Yep but remember this "Different strokes ect." In bike engines one size does not fit all. The bike engine that is right for me will probably not be right for anyone else.
 

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
235
63
up north now
Plus the price is a huge factor for a lot of people.

Whizzers come with all the bells and whistles, but some just want an inexpensive ride.
 

MotorbikeMike

Dealer
Dec 29, 2007
477
1
18
Sacramento
Hi, no this is NOT about different strokes, neither is price a factor, this is the Whizzer catagory, and has nothing to do with the cheap, and many times inferior, 2-strokes.

This thread was started by mistake by the OP and doesn't belong in this catagory, and I cannot imagine why anyone would care to disparage the best engine availble, in an effort to promote something cheap.

Mike
 

deacon

minor bike philosopher
Jan 15, 2008
8,117
3
0
north carolina
I think I have been insulted roflmao////

I find it hard to imagine someone taking offense at an unoffensive remark,,, I never said there was anything wrong with YOUR bike. I said different strokes for different folks and I don't find that a remark that should be limited to any particular thread. That WOULD seem to be a universal one size fits all comment.
 
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Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
235
63
up north now
Nobody's downing your bikes Mike, but just to keep this from turning from a smolder to a wildfire, I'm locking it down.

Say goodnight Gracie.

Goodnight.
 
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