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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #6821  
Old 02-12-2014, 03:19 PM
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Jumpa Jumpa is offline
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by Skarrd View Post
took it on it's first trip to work and back, co-workers were asking me where i got it and how much...

Still a bit tricky getting the darn thing to idle while it's cold and choke ON, but eh, it doesn't take long before the choke needs to be turned off.
My choke is never on for more than 30 seconds & that's only the first start of the morning you cant really idle with a choke because your basically letting no air in at all I only use my choke in the extreme winter cold weather & it's been that way with several different motors & carbs or "kits" if you will.

Not to mention it wont run past 30 seconds with the choke on. Also any adjustments made to a carb while the choke is on will have negative affects when the choke is off ,, in other words never adjust a choked carb it like putting a band aid on a chainsaw wound. It will do you no good
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  #6822  
Old 02-12-2014, 04:11 PM
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Default Re: what did you do to your motorized bicycle today?

I fixed the leaky drain plug.
New crush washer and teflon thread sealant. It'll never leak again. From now on I am going to suck the dirty oil out through the fill hole.
I made a vacuum system out of a juice pitcher and a 12 volt emergency air compressor that I converted to a vacuum pump.
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  #6823  
Old 02-12-2014, 09:17 PM
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Default Re: what did you do to your motorized bicycle today?

Totally pulled the bike down to ready for painting. Gonna leave the bars and forks on though as they're all chrome and will help to manage the frame.
I've laid all parts out labelled on shelves to give the best chance of successful reassembly, and a list has started on little stuff I think up on the way.
Good news: all my brackets I made to fit the china to a stretch chopper have held and still look good.
Not so good: cracked frame at the base of the seat stay and frame. Probably not hard to reinforce, but I just have to get the thing to an exhaust shop nearby for welding.
Apart from that it's a good time tinkering in the shed.
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  #6824  
Old 02-12-2014, 09:26 PM
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Default Re: what did you do to your motorized bicycle today?

Goter out for little more break in on the "TIGHTCASE#2" on the LaJolla. Man its great having professionally built racing engines!!!!
Then the phone rang and it was one of my South St.Louis riding crew trying to put together a ride for this weekend. They're predicting 50 degrees. Time to roll it out and go racing!!
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  #6825  
Old 02-14-2014, 07:48 AM
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Default Re: what did you do to your motorized bicycle today?

Got a bit done. Took my bare frame to an exhaust shop to weld a crack I found from an old engine mount.
Did some primer here, gloss coat there and sanding everywhere.
Put a helicoil in a thread I remembered stripping, but held so got put off.
Had to make a mount for my rear refector/light, so got a bit excited. I'd like some kind of teardrop type, but this will do at the grand cost of nought. Fits the flame look of the bike as well.
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Last edited by Cruise; 02-14-2014 at 07:51 AM.
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  #6826  
Old 02-14-2014, 10:42 AM
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Default Re: what did you do to your motorized bicycle today?

Went to Walmart and got supertech engine degreeser, and put it all over my bike. Spray off- and did a great job! The stock carb really gets my engine dirty. Good thing it's a black motor
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  #6827  
Old 02-14-2014, 01:37 PM
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Default Re: what did you do to your motorized bicycle today?

I had the same problem on my last bike for a couple of years. China motor.
I fixed it one fine day by tightening the throttle down into the carby a bit more with multi grips. I did exercise extreme caution and only turned it about 15 degrees past finger-tight, (too scared to do any more) but since then it's been fine.
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  #6828  
Old 02-14-2014, 09:54 PM
vachon644 vachon644 is offline
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Default Re: what did you do to your motorized bicycle today?

Finally got around to adjust my front cantilever brake properly; thanks Sheldon Brown for helping me with mechanical advantage!
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  #6829  
Old 02-14-2014, 09:59 PM
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Default Re: what did you do to your motorized bicycle today?

Every motorbicycle rider/builder needs to read Sheldon Browns bicycle guides.
The man has saved me untold money and frustration.
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  #6830  
Old 02-15-2014, 12:19 AM
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Default Re: what did you do to your motorized bicycle today?

mocha plug chop
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