gas petcock


Information and questions on GL1500 Goldwings (1988-2000)
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DennisBell13153
Posts: 3
Joined: Sat Nov 09, 2019 10:58 pm
Location: Winona,Ms 38967
Motorcycle: 1997 Honda Goldwing Touring 1500 bike

gas petcock

Post by DennisBell13153 » Sat Nov 16, 2019 8:48 pm



Everyone talks about repairing the fuel petcock.Can't you just replace it with a manual one and plug the vac. line?I would have no problem raising cover up and closing valve when not running bike.My bike is using a lot of gas and I think it may be sucking gas through petcock into engine and burning it.It has been too cold to work on it lately so I haven't checked petcock out.Just asking in the mean time everybody's thoughts!I want to get it ready for spring or a few warm winter days.Right now I only get about 74 miles a tank!!



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Rambozo
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Location: Disneyland
Motorcycle: 1992 GL1500 Aspencade

Re: gas petcock

Post by Rambozo » Sat Nov 16, 2019 9:03 pm

That rich and you would get black smoke and it would run like ****. I would check all the drain hoses for something wet. It might only leak when going down the road. There are drains from a few places. You can also pull the spark plugs to see if any cylinders are running rich.

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MikeB
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Motorcycle: 1998 - GL1500 Aspencade.
2003 - GL1800A
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Re: gas petcock

Post by MikeB » Sat Nov 16, 2019 9:25 pm

DennisBell13153 wrote:
Sat Nov 16, 2019 8:48 pm
Everyone talks about repairing the fuel petcock.Can't you just replace it with a manual one and plug the vac. line?I would have no problem raising cover up and closing valve when not running bike.My bike is using a lot of gas and I think it may be sucking gas through petcock into engine and burning it.It has been too cold to work on it lately so I haven't checked petcock out.Just asking in the mean time everybody's thoughts!I want to get it ready for spring or a few warm winter days.Right now I only get about 74 miles a tank!!
As a test, try running it without a petcock. Simply bypass it and plug the vacuum line for a tank or two.

After 74 miles, when you fill it up how much gas are you putting in the tank?
MikeB
Tacoma, WA, USA

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CrystalPistol
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Joined: Wed Mar 10, 2010 9:07 pm
Location: Shenandoah Valley of Virginia
Motorcycle: 1997 GL1500SE/'98 Lehman Trike

Re: gas petcock

Post by CrystalPistol » Tue Nov 19, 2019 2:09 pm

DennisBell13153 wrote:
Sat Nov 16, 2019 8:48 pm
Everyone talks about repairing the fuel petcock.Can't you just replace it with a manual one and plug the vac. line?I would have no problem raising cover up and closing valve when not running bike.
I've studied on it. Needs a 5/16" and 3/8" spigot back to back unless you're gonna re-align fuel lines. I may or may not do it yet. I have two extra OEM petcocks that still work that I picked up someplace, maybe Ebay and a new "kit" too so there is a good chance I don't. I also have a 1/4" shortened JIS bit & mini 1/4" ratchet that'll let me rebuild it in place. To run carbs dry for storage, I just slip vacuum line off and plug it.
DennisBell13153 wrote:
Sat Nov 16, 2019 8:48 pm
My bike is using a lot of gas and I think it may be sucking gas through petcock into engine and burning it. It has been too cold to work on it lately so I haven't checked petcock out. Just asking in the mean time everybody's thoughts! want to get it ready for spring or a few warm winter days. Right now I only get about 74 miles a tank!!
74 miles to the tank is like 12 MPG if it's a full tank? I guess it's possible but looks like it'd soon foul the plugs. Fuel enrichment (choke) isn't "down" is it?

Usually ... if the petcock leaks ... fresh fuel is found in the plastic tray? Of course, so would spillage from a recent sloppy refill attempt.
Rambozo wrote:
Sat Nov 16, 2019 9:03 pm
That rich and you would get black smoke and it would run like ****. I would check all the drain hoses for something wet. It might only leak when going down the road. There are drains from a few places. You can also pull the spark plugs to see if any cylinders are running rich.
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DennisBell13153
Posts: 3
Joined: Sat Nov 09, 2019 10:58 pm
Location: Winona,Ms 38967
Motorcycle: 1997 Honda Goldwing Touring 1500 bike

Re: gas petcock

Post by DennisBell13153 » Tue Nov 19, 2019 4:07 pm

Thanks for everyones input.I’m gonna check a few things out tomorrow.Thursday I will have surgery.After that I’ll wait for warmer days.



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