Problem with cylinder number one.

[Sandy]

Sometimes the top end problem can be related to the fuel petcock not opening all way due to a cracked or deteriorated vacuum hose. Save yourself some trouble and check it or just replace it (it's old) before you put the tank back on. Also sometimes you can have a kink in the fuel line, check that also while it's still easy. If you're going to replace it with some of the new line you bought don't make it too long, that's usually why it kinks. It's also been advised to remove or shorten the float bowl vent hoses if you're using pods. They're the two that come out the top from between the carbs, not the four on the bottom, they're the float bowl overflow tubes.

[carlosjc401]

It's also been advised to remove or shorten the float bowl vent hoses if you're using pods. They're the two that come out the top from between the carbs, not the four on the bottom, they're the float bowl overflow tubes.

Could you tell me why? i have pods and would like to know what dif it make to remove or shorten the vent hose

Thank you

[hungryman]

Sometimes the top end problem can be related to the fuel petcock not opening all way due to a cracked or deteriorated vacuum hose. Save yourself some trouble and check it or just replace it (it's old) before you put the tank back on. Also sometimes you can have a kink in the fuel line, check that also while it's still easy. If you're going to replace it with some of the new line you bought don't make it too long, that's usually why it kinks. It's also been advised to remove or shorten the float bowl vent hoses if you're using pods. They're the two that come out the top from between the carbs, not the four on the bottom, they're the float bowl overflow tubes.

I'd add that you may have a clogged fuel screen also.

Check the easy stuff first. I find it reduces my time in the idiot box. (Reduces, not eliminates)

[Sandy]

Could you tell me why? i have pods and would like to know what dif it make to remove or shorten the vent hose

Thank you

I haven't run pods myself but what evidently happens is at wide throttle openings the float bowls will drain fast enough that a vacuum is created in the bowl because the vent tubes can't flow enough air. This just allows the vents to function better.

[Jethro]

With pods the vent hoses should be removed.

[carlosjc401]

Thank you Sandy and Jethro for getting back to me about the vent tubs. I understand and it makes sence

[hungryman]

My vent tubes haven't been shorted, or removed, and it runs great with pods (K&N's). Just a reference point.

[Chris Daniel]

I replaced my petcock with a pingel (non vacuum) so that eliminated that. I also removed the vent hoses as well. Hopefully this will fix it, we shall find out.

[Chris Daniel]

Alrighty, got the carbs all sync'd up and took it for a spin, it is definatly a whole 'nother bike bike now LOL.

My brick wall has "softened" so to speak. It still feels as though it is struggling above 7000 but it will now pull to redline....just kinda slow. Seeing as how I have gone through just about everything I think one can go through to solve it, am I just looking at some tweaking of the main jets?

Thanks again for the assistance.

[Jackyl]

This sounds like my issue as well at high load/speed

With pods the vent hoses should be removed.

can you describe or show me a pic of what vent hoses should be removed ? for more on the issue Im having, please see my thread - 80 gsx750e dies in 5th gear thank you for the help here