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Hi! folks, riding back from Sydney to Queensland the wing just died. Had a feeling it was fuel waited about 40 minutes tried to start again and it went. Rode it to my brother in laws and stayed the night. Next morning started bike, bike started and then died. Checked the fuel pump, OK check if fuel was going through the pet **** valve. No fuel.Pull the petcock valve apart and reassemble and fuel comes through. The flow of fuel from the petcock valve is not as great a volume as that whichcome direct from the fuel pump, is this the way it should be.? any ideas as to what went wrong. Bike went well for the next 300 miles home.
 

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Have you changed the fuel filter lately?
 

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Good day ulster had you just re fueled might just have been bad fuel??or the pet **** is going home . It is repairable if you the parts are still available ?? or renew complete. :waving: :waving: :waving:
 

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To answer your question about the difference in volume between the gravity part of the system and the fuel **** and the fuel pump, what you have seen is quite normal.

Only so much fuel is needed so as long as adequate fuel can come through the fuel **** it is okay. The pump naturally over pumps to maintain a constant pressure and volume to the carbs. It will pump more than is needed and the visible volume at the fuel pump outlet will be more than the gravity volume at the fuel ****.

Kit
 

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Something to try if it happens again, this happened to me.

If you lose fuel flow, take the gas cap off and see if the fues starts to flow. Your tank has a breather line and if it gets plugged, pinched or otherwise impeeded, the resulting pressure will prevent fuel flow.
 

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If you have the gas cap problem mentioned by Richard, listen for a "swoosh" of air flowing into your gas tank when removing the gas cap. That's what mine did.
 

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morriscatt wrote:
If you have the gas cap problem mentioned by Richard, listen for a "swoosh" of air flowing into your gas tank when removing the gas cap. That's what mine did.
Excellant point.
 

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Did youcheck thecondition of your fuel filter to see if there was any debris when replaced? There are also a small screen under the needle & seat, but they would he hard to replace or cleansince itrequires the carb to be disassembled.

Like kit said, only so much fuel is needed. So long as it deliver adequate fuel demands by the engine, it will maintain the fuel level inthe carbs and therewould be no fuel starvation. Also, even if the flow was inadequate and slow, it would still be more than likely to sustain the fuel demands at idleand/or low engine power.

Your gas cap has a vent. The 88s did not have a vent line to the cap like the new models. If the capdoes not vent, it may cause youproblems.
 
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