EZM "Q"-matic

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Hi RdKryton,

Because of your feedback, EZM is considering the design & fabrication of a drive system that will adapt several popular motors to "Frame mount" configurations in the near future. Because of the EZM original design [KISS] it will be possible to attach the system to a variety of power plants. Look forward to testing the EZM automatic on larger displacement motors. If the EZM automatic can manage larger motors, just think how "bullet proof" it will be with the 49 CC 4-stroke.

Have fun,

That's a Good Move Lee, there are several Motors such as this 79cc. that I have seen in action. at Spooky race.. yet the fellow was limited to a centrifical cluth ..I think Muti Holed would be great.. and Jim your Mount is Kick..! ya need some meat when Mounting a Motor..
 
Thanks for the kind words on my mount build. I didn't make this one adjustable because it is easier to build this way. I just test fit the engine and made some measurements and built it to fit this bike. I believe mount could be built in two pieces that would slide together so they would be adjustable. BTW the mount is 4 inches wide and 12 inches long. It has to be long to fit the engine high enough in the frame. I hope it works. Did you guys notice the rear clamp has two sets of holes? The extra set of holes will allow second clamp to help stop the mount from sliding down under heavy loads. Thanks all.

Jim
 
Well, here's progress so far on the Q-Matic mated to the Harbor Freight Greyhound engine (79cc). This is on what was a basket case 1957 Schwinn Corvette until Wednesday. It's incredible how much work has been accomplished on that bike in just four days. We will have it at the rally at Lewes, running or not.
 

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To Kick Cool

Well, here's progress so far on the Q-Matic mated to the Harbor Freight Greyhound engine (79cc). This is on what was a basket case 1957 Schwinn Corvette until Wednesday. It's incredible how much work has been accomplished on that bike in just four days. We will have it at the rally at Lewes, running or not.
Kilroy.. Very Bosa Nova... beautifull BikeBuild.. Can't wait to Hear How she Runs,, with that alternete Motor.. Can Only believe she will Be very strong.. 4 stroke Is where It's at.. Keep us Posted Kilroy..
 
Hi KilRoy,

Did you need to move the external bearing brackets? If you notice I made them in such a way to allow different angles to avoid a collision with the cylinder angle on your HF motor. Because of design, the EZM drive assembly will fit a lot of motors.

Hey Snake Bite, be sure to tell everyone how powerful the EZM kit is on your new Frame.

Have fun,
 
Hey Lee
I did the mounting and I did not have to change a thing. You have it set perfectly for that motor. I should have the sprocket mounted and the chains on tomorrow after work.

Jim
 
Proven Power On the Helmutt Bicycle

Hi KilRoy,

Did you need to move the external bearing brackets? If you notice I made them in such a way to allow different angles to avoid a collision with the cylinder angle on your HF motor. Because of design, the EZM drive assembly will fit a lot of motors.

Hey Snake Bite, be sure to tell everyone how powerful the EZM kit is on your new Bicycle

Have fun,
Yes when chooseing a Motor of cource I started with the Whizzer.. But Now I find the EZM Is the easiest to Build and the Power Is So impressive. and frankly Better, faster Pulling hard from the beginning through it's Top end and when Built the Bike Is wieghing only 80Pounds an able to Pull a Large Man.. I tested with a 280pound Buddy Of Mine 6'4" I raised the seat a number of Inches so He was comfortable.. I rode My stock whizzer and couldn't do anything but stay even.. I weigh 185LBS Unbeivale Power from that Little 50cc EZM Bicycle Motor and Primary Next we are going to the drag strip for Some real testing..
 
Hi Kilroy,

From a few reports received on the HF motor it looks like the clutch will engage well, however the gap between the idle & engagement speed is wider than the stock EZM motor. The stock EZM motor engages within a few hundred RPMs off idle, whereas the HF motor starts with a lower idle speed and must reach the higher RPM level before engagement. The stock EZM motor idles near 2000 RPMs and the HF motor is around 1200 [a guess], therefore the HF motor would need to almost double the RPMs prior to engagement. Possible modifications [future project] would include changing ratios to cause the clutch to hook up sooner and make up the difference in the final output stage.
Looking forward to riding the HF equipped bike at Lewes, DE this weekend.


Hi Snakebite,

Thanks for the information on your new motorbike and your results are consistent with other dealers concerning the performance of the 49 CC four-stroke motors. Everyone seems amazed at the power of the motor, and most are shocked when comparing it to the Whizzer [138 CC] and 2 stroke [50 CC to 80 CC] motors in use today.
Many have used the EZM kit on a variety of bicycles, however your setup up looks perfect and maintains the "vintage" look.


Have fun,
 
Almost finished

The Greyhound / Q-Matic powered bike is almost finished. There will be some of the inevitable adjustments that will have to be made. We are waiting for the larger tank to be installed (with fuel line) and for the mirrors we have somewhere to be found and installed. Right now we are using the chain tensioner, but hope to work away from that by use of a half-link sometime in the near future. Here's a photo of the progress so far.
 

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