4

I have some issues reconnecting 1998 Kawasaki GPX fuel system to a Keihin G301 carburetor. Some of the tags that I put on carburetor have fallen off and I lost track of what hose goes where. There are two hoses for coolant and all other are fuel and vacuum. I need schematics or guidance how to reconnect the hoses.

Can anyone provide diagrams or guidance on how I can get my fuel system integrated back into the motorcycle properly?

I can supply more images if necessary.

Images of the fuel system, gas tank and carburetors

2
3

Here are the various connections based upon your images.

I have left the label spelling in the image provided the same as the image. They match any misspellings in the three images.

Image 1

  • "I don't know" marked inlet is a vacuum line. Your petcock has two lines coming off of it. The smaller one is for vacuum, the larger one is for fuel.

Image 2

  • "I don't know" market inlet is for vacuum.

  • "Main Fuel (Not sure)" is for your main fuel line from your petcock

Image 3

  • "Reservoir Fuel Supply" is actually a vacuum connector. The vacuum opens a diaphragm that allows fuel into the carburetors. This is a safety component in case your float is stuck open so your cylinder doesn't fill with fuel and create a hydro-lock situation which could be catastrophic to your engine.

  • "Main Fuel Suply" is correct and attaches to the carburetor fuel inlet from Image 2

  • "Vacuum" is incorrect. It is either a fuel tank vent hose or a drain. Either way it would connect to a hose that routes to the bottom of the motorcycle behind the engine and before the swing arm.

  • "Drain (I think...)" is possibly correct. As above, it is either a fuel tank breather or an overflow. One of the two. It routes the same as described above, behind the engine.

Carburetor Parts Explosion *

enter image description here

Fuel Tank Parts Explosion *

enter image description here

Images from Kawasaki via https://www.motorcyclespareparts.eu

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.