Question about 1986 Suzuki GS 700 ES

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Where is the fuse for the starter on a 1985 GS700 es? And does anyone know how to solve a no fuel to carbs problem?? Replaced petcock.

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Follow starter lead back to battery it should be in that cable
if you take hose off carb you can check if its flowing from the petcock

Posted on Jul 18, 2009


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Where do all 4 hoses from carbs go on a 1985 suzuki 700 gs?

Hi, John for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Suzuki, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Oct 28, 2016 | 1985 Suzuki GS 700 ES

1 Answer

Does a pit **** ever go bad or just cleaned?

I'm going to guess that "pit ####" meant petcock :-) and yes they do "go bad" in a number of ways. There is a diaphragm inside which can crack over time. There is also a diaphragm return spring which may break (I've seen only one like that though). But most often, the use of fuel with ethanol in it will cause the breakdown of the plunger seal. When that happens, the petcock "leaks".... not externally but internally. The Maxim-X has a vacuum operated petcock which is supposed to only provide fuel to the carbs when set to PRI (prime) or when set to ON while the engine is running. When the engine is off, there should be no flow of fuel. But the damaged plunger seal allows fuel to flow from the gas tank to the carbs at all times, even when the engine isn't running. When you combine that leak with a leaky float valve, the result is usually a crankcase full of gasoline - clearly not good. If you'd like to know all there is to know about the XJ700X / XJ750X petcock, visit the following page on the Maximum Maxim-X web site:
Maximum MAXIM Resource for 1985 86 Yamaha 700 750 Maxim Models XJ700X...
There are also some helpful tips for rebuilding the petcock here:
...with supporting pictures here:
Index of pix petcock
Hope that helps.

Jan 15, 2014 | 1985 Yamaha XJ 700 X Maxim

1 Answer

Cant figure out which hoses hook to which valve lines on a 1986 yamaha riva moped scooter fuel petcock

Large line is fuel, from tank to petcock. Large line from petcock to Carb. small line is vacumn from intake manifold to petcock (small spigot). suck on this line & make sure Gas comes through Large line to Carb.

Dec 16, 2013 | 1985 Yamaha XJ 700 X Maxim

3 Answers

My issue with my bike is constant fuel overflow, even after the bike is shut off fuel keeps running out. A little back history. The bike has sat for 26 years in a shed. I took the carbs apart and cleaned...

Your petcock needs to be rebuilt (if parts available), or replaced, if it does not shut off the fuel. It also may not be saving reserve fuel , if gas is bypassing the ON position. You may also need a new fuel filter .Maybe add an additional in line filter. If you have replaced the float needles and the carbs are still overflowing you probably have a problem with rust in the tank. Have the inside of the tank cleaned or use a rust removal kit on the tank and see if this does not solve the problem. Try to avoid fuel tank liners if possible , they can cause more problems than they solve.

Jul 02, 2010 | 1980 Suzuki Gs 550 L

2 Answers

I can not get gas to the carbs how many vacuum hoses feed into the petcock??

petcock should only have [1] vac to inlet manifold & [1] fueling carbs & would be different diameters so you cant confuse them
Cheers Rob.

Jul 30, 2009 | 1985 Suzuki GS 700 ES

1 Answer

Took hose off the petcock and turned the bike over but no gas

I would take the vacuum and main fuel lines off and just, pardon the expression, **** on it to see if the fuel will start to come out from the petcock outlet. Also check the position of the valve to make sure it is in the "on" or "res" and not "off". Duh. It happens.
If that doesn't get it then the petcock needs a rebuild. If the fuel line or vacuum line is clogged or the carb floats are stuck closed you will also get no fuel. Check it all out with patience and curiosity. It's an easy fix.

Jul 30, 2009 | 1985 Suzuki GS 700 ES

1 Answer

I need to know where all the hook ups go coming from the shut off valve of the gas tank on my 1985 yamaha maxim x 700

There are two lines coming out of the fuel petcock (shut-off valve). The small diameter one is a vacum line that connects to the top of the rubber intake located between the carb and the engine head. you should notice that all four intakes have a vacum port in this location and they should all be capped excet one - usually #2.

The second line of the fuel petcock is the larger diameter one, and is the fuel line. Make sure you install an in-line filter if it has been lost. The fuel line connects to the carb on a pipe that feeds all four carbs. The pipe is located on the lower portion of the carb, down by the float bowls. There will be a connection port between #2 and #3 (right in the middle of the carb assembly). It will be difficult to see when everything is assembled and even more dificult to reach.

Jul 17, 2009 | 1985 Yamaha XJ 700 X Maxim

1 Answer

85 gs700es. replaced petcock but not getting any gas to the crabs. anyone help?

assuming your fuel lines to the carb are clear, I would think that the float is probably stuck. If you tap lightly on the float bowl it may unstick. Just use the back of a screwdriver or something like that. Just don't dent the cover. If that doesn't do it then you may have to remove the cover and clean it out.

Jul 17, 2009 | 1986 Suzuki GS 700 ES

1 Answer

1985 Yamaha xj700 Maxim- Carb. fuel lines

yes, the breather line hooks to the petcock on the line facing the back, the fuel line hooks to the larger one. the line from the breather is actually a vacume line that turns on the fuel, without it you will not get fuel out of the petcock unless it is in the prime position.

Jul 04, 2009 | 1985 Yamaha XJ 700 X Maxim

1 Answer

Fuel pump not activating and delivering fuel to carb, 1985 Nissan

Check in the fuse block to check for the fuel pump relay.

May 05, 2009 | 1985 Nissan Pickup

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