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10-29-2012, 12:01 PM
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#1 (permalink) |
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Junior Member
Join Date: Oct 2012
Posts: 27
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Fuel Pump?
1985 Honda Shadow VT700C,
Alright so I swindled this bike from a gent for 350 bucks that let it sit in a parking lot for 6 months. I got it running after some carb work....here lies the problem. One the battery is pretty weak but as long as it stays on the trickle charger seems to start and run the bike fine. Major Problem: So some times when i turn the key on I hear the fuel pump turn on and off (sounds evenly timed out, {not sporadic}) When i hear the fuel pump kick on the bike will start. The bike will run and drive, and then all of a sudden the fuel pump will just stop working and the bike will die out. Wait 15-20 mins the fuel pump will come back on but you never know for how long. This bike has had electrical issues. Is this a dying fuel pump, or a bad battery, or something shorting out. I have heard that if you have a bad battery that will not hold a 13v+ while running it will not power some essential components. Would love to hear some advice or experince! if you need pictures or further explanation, would be happy to. |
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11-05-2012, 05:14 PM
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#2 (permalink) |
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Member
Join Date: Oct 2012
Location: Southern Indiana
Posts: 49
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I had a similar problem with my 84 VT700. Mine was the fuel pump relay was going out. When it finally went I just wired my fuel pump directly to the battery using a toggle switch. I turn the switch on to ride and off when I park it. The fuel pump is designed to only run when the carbs need fuel (based on pressure in the fuel line). I have been running like this for about 6 months now with no problems.
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Current ride: 1984 VT700c Previously: 1969 Triumph Bonny, 1972 Norton Commando Chopper, 1981 Yamaha XS 650, 1978 Naked Goldwing |
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11-05-2012, 07:52 PM
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#4 (permalink) | |
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Senior Member
Join Date: Mar 2011
Location: Devine TX
Posts: 588
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Quote:
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1985 VT700C Vid http://www.youtube.com/watch?v=gHNQqIJhuD0&feature=plcp  Updated: Relocated clutch lever. Vindicator bars by R.O.C.
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12-11-2012, 12:07 AM
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#6 (permalink) |
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Senior Member
Join Date: Mar 2011
Location: Devine TX
Posts: 588
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Anyone know if the stock fuel pump is rebuildable? Mine is leaking.
Ray.
__________________
1985 VT700C Vid http://www.youtube.com/watch?v=gHNQqIJhuD0&feature=plcp Updated: Relocated clutch lever. Vindicator bars by R.O.C.
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12-11-2012, 08:41 AM
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#7 (permalink) |
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Junior Member
Join Date: Oct 2012
Posts: 27
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I dont believe so, I have heard of people using universal fuel pumps, and adjusting it to 2-3 psi of fuel...i believe thats what the carb demands....further research would be required though.
I dont know if these will work. Fuel Pumps (Universal) - BikeBandit.com |
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12-11-2012, 11:45 AM
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#8 (permalink) |
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Senior Member
 
Join Date: Mar 2012
Location: Ketchikan, Alaska, salmon capital of the world!
Posts: 912
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I took mine apart when i was messing with my reserve tank rust problem just to see how it worked and I dont think you can "rebuild" them, but you can "clean" them.. not sure its worth it tho.. but if your there its easy to take apart and do an autopsy on... kinda cool to see how it works...
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 My new to me 1984 VT700C   |
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12-11-2012, 11:37 PM
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#10 (permalink) | |
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Senior Member
Join Date: Mar 2011
Location: Devine TX
Posts: 588
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Quote:
Thanks superdiver for the info. I just didn't want to take it apart and eff something up eh. Ray.
__________________
1985 VT700C Vid http://www.youtube.com/watch?v=gHNQqIJhuD0&feature=plcp Updated: Relocated clutch lever. Vindicator bars by R.O.C.
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