Question about 1991 Yamaha FZR 250 R

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Fuel system is not complete.

We need a diagram to see what is missing

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Http://www.manualz.info/ try here for a manual


hope this helps

Posted on Jan 07, 2009

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Posted on Jan 02, 2017

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First, select your Silverado in the box that says All Trim Levels.

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Once you're done with that, go back on your internet browser and in the box that says Fuel System, click that drop down and select Electrical System, unfortunately, I don't see any fuses in electrical system diagrams, the pump should be part of the electrical system, but I don't see that either in the electrical system diagrams.

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I need a diagram for the fuel lines on 1997 kawasaki vulcan 750. i took the fuel lines loose and i don't know where they go


Hi.

There is no "diagram" showing the whole routing of fuel lines in the bike. You need to use different diagrams in Fuel System section of the service manual. Fuel system section starts at page 15 in service manual, but what you really need starts at page 40. I have posted fuel service manual at the end of comment.

There is one forum where users discussed the routing. One user has colored the diagram from service manual to indicate lines routing. Here the diagram:

ginko_149.jpg

Here the forum, I quote:

"The red and yellow are the fuel lines that go to the petcock. The green one you left unmarked also goes to the petcock. The line with a question mark is a vacuum line that connects to a part in front of the battery along with the larger lines to the cylinders."

Here the service manual in PDF format.

Regards.

Ginko

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It's hard to find diagram for older bike.
I got the pic from the tank to pet ****.
LINK HERE
mustgo_8.gif
mustgo_73.jpg

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1 Answer

Its a 1985 Yamaha xj700 maxim that has a problem with the fuel and vacuum line, from the fuel tank to carburetors and drain line diagrams


Hi, Sevensons7 always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

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http://www.cmsnl.com/honda-cb750fc-general-export-kph_model14872/partslist/

Go to the above site and scroll down to fuel system, a complete exploded view of all the parts and systems of the motorcycle are there with part numbers as well. Invaluable site for nearly every Japanese make/model showing every nut and bolt in diagrams.

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Need to see the carburetor diagram for a 2000- wont start


I could not locate a diagram of your machine's carburetor. I can tell you, for certain, that the carb does have a rubber drain tube that goes from the bottom of the float bowl and vents to atmosphere beneath the vehicle.
There are three required ingredients required for combustion: fuel, compression, and a spark (at the right time). Try to find out which of these are missing. Loosen the drain screw on the float bowl. Is fuel present? Check the compression - you've got to see at least 140 psi for anything to happen. Pull the spark plug and crank the engine. Is there a spark?
If it has sat for an extended period of time (more than just a couple of months) then the carburetor will be plugged with fuel varnish. It is very easy to think you've got everything cleaned, when the jets are still plugged up. I would take the carb apart and remove the jets. Hold them up to a light source and look through each one. If you can't see through them, there's the problem.

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