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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #6731  
Old 01-03-2014, 08:50 PM
MEASURE TWICE MEASURE TWICE is offline
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Location: CA
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Default Re: what did you do to your motorized bicycle today?

Riding NorCal woods OHV area, I had lots of interested lookers at my OHV motor bike.

I was not expecting the California OHV Association officials in two white cars with many antennas driving up and also asking questions.

I found the 21:1 ratio fine for trail riding and the swapped in fork with shocks also helped do way better this time. I can see if my GPS distance traveled on a tank that was not emptied got good MPG. Fastest speed with 21:1 I will need to connect to computer as I had not used the GPS in a while and did not find how to reset fastest speed, though it is in the raw data I can download to my PC.

MT

Last edited by MEASURE TWICE; 01-04-2014 at 01:15 AM.
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  #6732  
Old 01-03-2014, 08:57 PM
Dp-2004 Dp-2004 is offline
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Join Date: Nov 2013
Location: Austin
Posts: 3
Default Re: what did you do to your motorized bicycle today?

Made my own tensioner. Seems to work.

The one that comes with all kits is a POS, but everyone already knows that. It does not matter if you screw the bracket to the frame or not, the fact is the bracket and the steel that it is made of are made in a Chinese prison...you can't reinforce bad quality and design. If you have a "stock" tensioner eventually it will fly into your spokes, hopefully you are going slow when it happens...

I made it using 2 "U" clamps, bolts and some pre-cut steel from Home Depot. Takes some tinkering to get the chain alignment just right, but this one will not fly into your spokes.

Email me at dp-2004@hotmail.com and I will email you a pic...I can't get it to upload here....it is worth trying, I made one for each of my bikes and after about 100 miles each they both work and are cheap and easy to make!
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  #6733  
Old 01-03-2014, 09:55 PM
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Intrepid Wheelwoman Intrepid Wheelwoman is offline
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by Scootmeister View Post
Absolutely nothing because I just picked up this 1972 Yamaha RT2 360 with 234 miles on it and I've been working to get it on the road. It's been sitting for over a year and had a pound of rust in the fuel tank, the petcock was clogged as was the carb. All are clean now and as soon as a couple of parts come in I will put her on the road. As soon as that project is completed, I'll be back on my motorized bicycle to add some chain guards and install new brake levers with built in switches for my brake light. Happy New Year all you two wheel enthusiasts/MBers!!!!
Nice bike, it's very clean and tidy for a 1972 model.
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  #6734  
Old 01-03-2014, 10:57 PM
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maniac57 maniac57 is offline
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Location: memphis Tn
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Talking Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by Scootmeister View Post
Absolutely nothing because I just picked up this 1972 Yamaha RT2 360 with 234 miles on it and I've been working to get it on the road. It's been sitting for over a year and had a pound of rust in the fuel tank, the petcock was clogged as was the carb. All are clean now and as soon as a couple of parts come in I will put her on the road. As soon as that project is completed, I'll be back on my motorized bicycle to add some chain guards and install new brake levers with built in switches for my brake light. Happy New Year all you two wheel enthusiasts/MBers!!!!
Beautiful bike!
I had one of it's smaller cousins from the same year...a 1972 DT100.
Rode the wheels off that super tough little bike! It was my very first new motorcycle and I abused it for almost a decade before it finally broke a coil.
Hope you have as much fun on it as I did on my DT!
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  #6735  
Old 01-05-2014, 03:57 AM
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Cruise Cruise is offline
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Location: Australia
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Default Re: what did you do to your motorized bicycle today?

On my 24" bike, I changed my 39T rear sprocket to a 32T.
Reasons were mileage and vibrations at mid-higher revs.
First ride around the block and I had trouble not smiling, so I just did.
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  #6736  
Old 01-05-2014, 10:35 AM
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xseler xseler is offline
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Default Re: what did you do to your motorized bicycle today?

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Originally Posted by Cruise View Post
On my 24" bike, I changed my 39T rear sprocket to a 32T.
Reasons were mileage and vibrations at mid-higher revs.
First ride around the block and I had trouble not smiling, so I just did.
.


"Don't think twice, it's all right."


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  #6737  
Old 01-05-2014, 04:19 PM
Scootmeister Scootmeister is offline
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Default Re: what did you do to your motorized bicycle today?

Got my two brake levers in the mail, they sent me two left levers instead of a right and a left. Of course, the vendor said send it back and we'll replace it. Paying shipping twice is no treat, especially since many vendors gouge on shipping prices to begin with. Anyway, installed the one left one and hooked up the wires to my custom made LED brake light and I'm happy to report it works like it's suppose to. The levers are pretty much crap compared to the Tektros I took off, but they have a built in brake switch and a long sheathed wiring harness so it was pretty much a plug and play as far as the wiring.. I did swap out the two finger levers on the new assembly for the full hand levers from the Tektros for more stopping power. My hand made wiring coil easily handles the LED headlight, LED tail light and the new brake light. As soon as I get the right lever assembly in, I'll wire it into the circuit, so that either brake will activate the brake light. It's nice to have a motorized bicycle that's set up like a factory bike with all necessary safety features.
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  #6738  
Old 01-05-2014, 10:18 PM
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xseler xseler is offline
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Default Re: what did you do to your motorized bicycle today?

It's 10* outside with the wind a'howl'n. Supposed to get up into the 40's later this week -- may mess with the carb jets that I just received. No hurry, cause it's too darn cold out there to mess with it! Not worth the effort to warm up the garage, in my opinion.....
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  #6739  
Old 01-06-2014, 01:51 PM
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placidscene placidscene is offline
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Location: Austin, TX
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Default Re: what did you do to your motorized bicycle today?

Yesterday, i introduced a friend to the motorized bicycle.
He had seen it once before when he came over to hang out and work on one of his cruiser bikes, but it was not running then because of a bad magneto.
I got it warmed up for him and let him take it for a spin. He thought it was pretty sweet.
I would like to have someone to ride with here, and I have an old cruiser that I don't have time or money to build, but would like to see it built, so I told him I'd give him the bike if he wanted to motorize it, and would help him with the install.
I think he is going to go for it!

I got my new DAX high compression head in, and I want to do some proper port work and cut the piston skirt up a little to pull a little more out of it.
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  #6740  
Old 01-06-2014, 03:56 PM
2stroker 2stroker is offline
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Default Re: what did you do to your motorized bicycle today?

walked past it in the garage blew some dust off it and went fishing!
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