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Mounting Techniques for Bicycle Motors Every frame is different. Share and ask questions about mounting your engine kit to your frame or rack

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  #1  
Old 09-22-2009, 02:51 PM
ohrapture ohrapture is offline
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Default Motorcycle gas tank. Mounting?

I just bought an old motorcycle gas tank (freshly lined)
I was wondering if anyone had any experience mounting one to a Motor Bicycle
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26" Schwinn Riverside (US Army Paint)
68.5cc Slant Head Engine (Powerking!)
SBP Expansion Chamber (Wrapped)
Stock 44t Sprocket
Considering investing in a shift kit

Last edited by ohrapture; 09-24-2009 at 10:56 AM. Reason: Adding Pictures
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  #2  
Old 09-23-2009, 09:33 AM
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azbill azbill is offline
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Default Re: Motorcycle gas tank. Mounting?

I have mounted a 3.3 gal tank on a chopper (nirve deviate)
gallery384
most mount differently (frame specific),,,a pic would help us help you
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  #3  
Old 09-30-2009, 10:50 AM
ohrapture ohrapture is offline
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Default Re: Motorcycle gas tank. Mounting?

Just as an update,
I have tried many forms of manual mounting (clamps and such) all to no avail
I tried JB weld which just snapped right off (actually very surprised. bare metal and everything)
I even tried a form of synthetic clay
So far nothing has been able to hold up to the vibration
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26" Schwinn Riverside (US Army Paint)
68.5cc Slant Head Engine (Powerking!)
SBP Expansion Chamber (Wrapped)
Stock 44t Sprocket
Considering investing in a shift kit
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  #4  
Old 09-30-2009, 12:18 PM
ocscully ocscully is offline
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Default Re: Motorcycle gas tank. Mounting?

I've read else where that Double Stick Foam Tape is a good material to use for this type of installation. You might want to reduce the size of the tunnel using wood or plastic blocks attached with the same Double Stick These blocks could also be used to adjust the level/angle of the tank on your frame Here is a link to the type of tape I'm talking about. McMaster-Carr Click over to the second page and you will find the 3M Brand Very High Bond Tapes this is what you want.

ocscully

Last edited by ocscully; 09-30-2009 at 12:21 PM.
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  #5  
Old 09-30-2009, 12:31 PM
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BarelyAWake BarelyAWake is offline
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Default Re: Motorcycle gas tank. Mounting?

hmm... haven't had to deal w/this yet - but other than burning/scarring the new liner you have (easy to patch w/new) I would seriously recommend having a few mount tabs at least brazed (preferably welded) on the underside of the tank.

It'd be cheap enough as it'd only take a minute if you had the tabs all made up and the tank prepped (sanded clean where the tabs go). I would never trust double sided tape for that job, particularly as gasoline is such a fine solvent for that type adhesive. Sooner or later you'd spill fuel and run the risk of loosing yer tank at speed o_O

The double sided foam tape is much better used in conjunction with proper mounts - to reduce movement/noise, that might be what you read about. I wouldn't just tape ANYTHING to my bike and expect it to stay lol and the fuel tank is somewhat important

Last edited by BarelyAWake; 09-30-2009 at 12:34 PM.
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  #6  
Old 10-07-2009, 09:20 PM
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george_n_texas george_n_texas is offline
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Default Re: Motorcycle gas tank. Mounting?

I'd use the same stuff I used for my bottom motor mount...black RTV gasket sealer. It is rubber-like and solid. That stuff ain't goin nowhere.
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Old 10-07-2009, 10:05 PM
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george_n_texas george_n_texas is offline
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Default Re: Motorcycle gas tank. Mounting?

Check out this link for a nice cheap fuel pump $15. It is 12 volts though. Anyone know of a tank the shape of the old ammunition boxes they used in the military? Be perfect for the rear mount.
Electric Fuel Pump | Bujold Hobbies Inc. (Hobby Zone)
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  #8  
Old 10-07-2009, 11:00 PM
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Kevlarr Kevlarr is offline
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Default Re: Motorcycle gas tank. Mounting?

Get some foam pipe insulation to go around the top tube of your frame. I'd make a frame clamp that uses the pins already in the tunnel. Take a couple of pieces of flat bar, find some grommets that just fit over the pegs on the tank, drill the flat bar to fit the grommets, bend the flat bar into kind of a goblet with a ball stem shape so the ball section clamps around your frame and the goblet section has the grommets for your tank pegs.

Nothing to scale but here's a quick model I made
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  #9  
Old 10-19-2009, 11:26 PM
lovehamr lovehamr is offline
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Default Re: Motorcycle gas tank. Mounting?

Kev, that's so simplistic it's brilliant!

Steve
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  #10  
Old 04-07-2010, 07:44 PM
zvslate zvslate is offline
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Default Re: Motorcycle gas tank. Mounting?

I tried everything on mine to no avail so i drilled through the top bar.
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