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Kimjon's 50cc (then later ... 150cc and 400cc...then 1000cc) of awesomeness!


Kimjon

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Can't keep away from these things.

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Did an oil change on the transmission.

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Yip...yes it did...

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Cut and polished the 40 year old paint. Came up better than expected, but wont be winning best paint award at SEMA this year tho. Still, I'm happy with it.

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And just so the Yamaha doesn't feel left out.

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It handled the 12km trip with ease. However I think I could probably walk faster up some of the bigger hills? And then downhill it hits some kind of limiter at 55km/hr and just won't push through it. Feels electrical like a speed limiter on the coil? Not sure? But the honda does 70+++ downhill, its right off the speedo.

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Pic to sum up the last couple hours...

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#blackwheelsmatter 

Plus while apart, I cleaned out all the grease inside the brake drums with brake cleaner, then sanded everything to freshen it up. Brakes now work good. Success!!! Ending the day on a win...beer time now.

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3 hours ago, Kimjon said:

And just so the Yamaha doesn't feel left out.

Resized_20200705_115306.jpeg.39c5aac97cef3c2946bfbb260e223768.jpeg

It handled the 12km trip with ease. However I think I could probably walk faster up some of the bigger hills? And then downhill it hits some kind of limiter at 55km/hr and just won't push through it. Feels electrical like a speed limiter on the coil? Not sure? But the honda does 70+++ downhill, its right off the speedo.

have you done the old move the restrictor washer in the variator ?

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Just now, rumrum said:

have you done the old move the restrictor washer in the variator ?

These aren't belt driven/don't have a variatior.

There's 2 clutches, first clutch engages to start moving, then the second one locks to engage second gear at about 30k.

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Just now, rumrum said:

have you done the old move the restrictor washer in the variator ?

Nope. I'm not sure how this one works, but it has chain driven gears that somehow gives it 2 speeds?

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*Image stolen off the internet.

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Funny...we both posted above at same time.

I'm of the opinion these are just slow motors, after doing a lot of geeking out online. Best way to go fast is do what everyone said to do at the start and find a Yamaha Jog motor. I didn't understand how scooters bolted together back then, now ivd had them apart a fee times, I can see it's not a big deal to do. Just keeping an eye out now for a crashed one.

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21 minutes ago, Kimjon said:

Nope. I'm not sure how this one works, but it has chain driven gears that somehow gives it 2 speeds?

29066983_1704544209568907_3418356052750499840_n.jpg.c20d72abf936911b6926693087aff59b.jpg

*Image stolen off the internet.

That second clutch (on the right) is spun by the rear wheel through the final drive, so yeah X amount of road speed kicks the arms out and locks it into 2nd gear.

Your down hill limiter is likely to be from mechanical resistance rather than an electrical limit.

 

Depending how carried away you want to get I've got cases etc from a vertical Jog, with a bit of customising you can run Zuma (BWS?) cylinders and pipes etc.

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