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Re:Pumpless Question
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TOPIC: Re:Pumpless Question
#362072
BigBoyinMS (User)
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Re:Pumpless Question 2 Years, 1 Month ago  
Nope... Mine's just tucked away so it doesn't dangle.
 
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#362148
Yamigo (User)
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Re:Pumpless Question 2 Years, 1 Month ago  
Jona wrote:
Use it for the electrical supply on your new tach

You know Jona, that's a damn good idea. Could I do the same for a GPS? Maybe cut the wire off the pump and hardwire the male part of the connector to the GPS chord, which could be plugged into the female part of the connector when needed. Thanks Doc and BigBoy for the answer to my last question.
 
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#362152
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Re:Pumpless Question 2 Years, 1 Month ago  
Yamigo, there is no limit to what one can do with these bikes, hell, we all just witnessed a Road Star that rolls at 200 MPH...yes, you can use it for your GPS Hook-up
 
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Re:Pumpless Question 2 Years, 1 Month ago  
Jona wrote:
Stock float valve and petcock, same metal fuel line, no extra filter, no extra venting, however, I did add a positive inline (on/off) ballcock valve so I didn't have to dick with turning the petcock off all the time....works great so far....may add an inline filter down the road and perhaps vent the gas cap... and I don't slack on the seafoam maintenance

Jona,
How does the ballcock valve work? Does it open and close on it's own? If it does what opens it? Can you give specs on this valve? Where do I get one? If I don't use one do I have to turn the petcock off each time I stop? Please forgive me for my ignorance. I'm by no means a machanic.
 
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#362668
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Re:Pumpless Question 2 Years, 1 Month ago  
BC1955 wrote:
Jona wrote:
Stock float valve and petcock, same metal fuel line, no extra filter, no extra venting, however, I did add a positive inline (on/off) ballcock valve so I didn't have to dick with turning the petcock off all the time....works great so far....may add an inline filter down the road and perhaps vent the gas cap... and I don't slack on the seafoam maintenance

Jona,
How does the ballcock valve work? Does it open and close on it's own? If it does what opens it? Can you give specs on this valve? Where do I get one? If I don't use one do I have to turn the petcock off each time I stop? Please forgive me for my ignorance. I'm by no means a machanic.


Anyone else have this setup or can answer my questions?
 
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#362687
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Re:Pumpless Question 2 Years, 1 Month ago  
BC1955 wrote:
Thanks Texasscott for the link but do I have to change the needle valve? For now I'm not wanting to do a lot of performance mods. It runs pretty good as is. I just want to do away with the fuel pump. Is it as simple as replacing the existing fuel pump and steel tube with a new flexable fuel line with an inline filter from the petcock to the carb? For now that's all I want to do. Later on, when I get to know this bike better, I will probably do the needle valve swap.

I noticed you were referring to the needle valve, but I believe you really mean the float valve. If that is the case, to go pumpless, it has been my experience that you do need to change out the float valve to avoid fuel starvation at steady highway speeds around 60 - 70 mph and above.

I did the bare minimum and have no starvation at all up to 100 mph. I replaced the float valve, adjusted the float and removed the carb inlet screen. Some here have just removed the 'roll over' valve in the gas tank vent line instead of venting the gas cap and had equal success, but you should probably do at least one or the other to prevent a vacuum condition in the tank from building up. That too will cause fuel starvation. No other changes are necessary, just desired.

This part isn't a 'need', just a convenience: I also cut down the 'main' petcock tube so that the low fuel light would come on just before the 'main' line would starve for fuel.

I used the Suzuki valve, but would probably use the grizzly if I were doing it now.

Hope it helps. I haven't had any carb puking since and it looks better too imho.

Ratl.
 
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Last Edit: 2011/04/09 11:28 By Ratl.
 
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#362764
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Re:Pumpless Question 2 Years, 1 Month ago  
I like the pump and the look. I figure Yamaha had a reason to install the fuel pump on these bikes. I don't think the "real" reason folks go pumpless is they are afraid of a failure , but rather the looks. Some folks like the pumpless look and that's fine in my book. I just wish Yamaha didn't put them goofy looking cylinder oil lines on.

(I carry a spare engine in my trunk, you know, just in case)
 
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#362769
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Re:Pumpless Question 2 Years, 1 Month ago  
BC1955, simply go to your local hardware store, in the plumbing dept. you will look for a 5/16" Ball/cock valve with hose barbs on both ends, it simply has a handle on it which when in the "on" position will run parallel with the valve, the "off" position is 90deg to the valve, install the valve anywhere convenient to reach between/after your petcock and before your carb, you can leave your petcock on all the time, I leave mine on reserve and simply use the new valve to turn the fuel on and off...no guessing involved, I will take a photo of mine tomorrow and post it for you

Example:
 
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Last Edit: 2011/04/09 19:43 By Jona.
 


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#362929
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Re:Pumpless Question 2 Years, 1 Month ago  
Photo for bc1955


 
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Last Edit: 2011/04/10 09:07 By Jona.
 


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#363317
BC1955 (User)
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Re:Pumpless Question 2 Years, 1 Month ago  
Thanks Jona. That's what I thought you were talking about.
I got my pump off and a new flexable hose hooked up. I had to go above the manifold. I could not get enough gas to the carb to keep it running going below. I do not have an inline filter installed but I may in the future. Do I need to vent the gas cap? I want to be sure I have enough gas going to the carb. I did not run it long after the install but what I did ride it seemed to run fine as is. I'm just leary of any long trips, right now. I want to make sure I have all the bases covered. I don't want to get stranded because I did not do this or that.
 
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