over rich idle and cruise/awesome boost pull

General 750 turbo related discussion

over rich idle and cruise/awesome boost pull

Postby Gene » Fri Mar 13, 2020 4:06 am

I came up with a relay-over resistor, boost activatior
an adjustable vacuum activation switch...
to lower fuel pressure by 50% for crusie/city-mode, by slowing down the fuel pump through an in-line resistor....

I've had 2 computers on same bike's system....both run exactly similar....
same puking-rich low speed and blubbering cruise mode....
yet having a healthy boost-power pull...

My GPZ now has a lean and subtle cruise at low speed...
the girlfriend likes it.....
quite angry when she spools up still.....
mean 3rd gear pull yet...

Do your machines behave ok in city??
Or blubber and puke black smoke at low speed like mine did???

Inquiring mind wants to know....
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Re: over rich idle and cruise/awesome boost pull

Postby riturbo » Fri Mar 13, 2020 12:39 pm

Sounds like classic symptoms of the return valve on the tank might be clogged up . Its the check valve where the gas line returns to the tank . It can be taken apart and cleaned there's a little spring in there that gets clogged up with rust .

Most on here adjust the fuel pressure with a aftermarket fuel pressure regulator. Not through the pump speed .If its a stock bike no adjustment should be needed

Also you might try adjusting the tps . If you do a search on here there's many threads on how too .


Most bikes run smooth through all rpm ranges . You need to find the problem.

Someone might have put it in Race mode . If its a stock bike with stock exhaust and filter that could make it run rich also.
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Re: over rich idle and cruise/awesome boost pull

Postby Gene » Sat Mar 14, 2020 3:25 am

It's not in (lame) race mode...
Return valve isn't stuck.
I'm not new to fuel injection.....
This dinosaur system is pathetic, but can be manipulated....

My 1st computer blubbered n puked before it grenaded, just like the 2nd one ran rich...

I have an adjustable vacuum switch feeding a relay,
that swaps the fuel pump from 13 volts to 8-ish at idle n cruise....
...an electric motor can make maximum torque at 1rpm, yes?...
I regulated the pump amps, instead of dropping duty cycle on the injector side....
comprende?

Pressure is volume...
duty cycle is volume....

GPZ now legal.
and perfectly tuned...
Weber trumpet in the inlet.
Waste gate feed is plumbed to the air box nipple (instead of the turbine housing...)
and boost sensor is relocated for easy access...

Vacuum-over-boost fuel regulator gets pressure feed from all 4 inlet ports...
If fuel pressure is 40psi at atmospheric...
fuel pressure becomes 60 at 20 psi boost...
Capish....??
No chance of a lean catastrophe.
(start rich and work lean)
and ....a straight-out exhaust dump.

I'd love to piggy-back this system on my H*nda VFR....
Hmmmm

So????
Is anyone able to post a video
of their bike...
of a feed...
from an all-stock GPZ turbo?
I have to question the streetability.....
blubbering or crisp????

Mine cruises like Driving Miss Daisy
and rips ass from concrete launch pad like Eddie Lawson n Bubba Showbert special...

Vid soon to come.....
when I can coach my woman into the camera controls....
Just curious on how you's "others" turbo bikes behave in the real world...
not only when when "tip-toeing" flaunts
but when rip-ass counts...
???

Vids anyone???

https://www.facebook.com/gene.mosmeyer?v=wall
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Re: over rich idle and cruise/awesome boost pull

Postby longfiredragon » Sat Mar 14, 2020 10:07 am

Understand what you have done and if it works for you and it is how you want to run your bike it is all good. But to answer your question which riturbo already answered. No. You should not have to do any of that. My bikes have always ran fine at all speeds, all throttle inputs and all RPMs. If everything is working correctly on a stock bike you will not have the issues you describe. There is an issue somewhere causing it to run the way you described it. Oh, and it is not a GPZ, it is a ZX 750 Turbo. Good luck.
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Re: over rich idle and cruise/awesome boost pull

Postby Gene » Wed Mar 25, 2020 11:32 pm

*Deleted by admin*
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Re: over rich idle and cruise/awesome boost pull

Postby longfiredragon » Wed Mar 25, 2020 11:45 pm

Wow dud, we were just trying to help you. And if you want to call it a GPZ its a free country, but just know that Kawasaki never referred to it as a GPZ. I didn't say this in the last post because I was trying give you the benefit of the doubt. But you answered your own question in your own post. If you have had 2 computers hooked to it and it ran the same with the issues you described than wouldn't it be obvious that there is a problem somewhere else. Guess you need a snap on tool to tell you. If your going to ask questions you try listening. No wonder you have been kicked off other forums and not liked. Your one of those people that create your own problems and then try and blame someone else. good luck.
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Re: over rich idle and cruise/awesome boost pull

Postby dazbo » Thu Mar 26, 2020 1:43 am

PLEASE SHUT THE DOOR ON YOUR WAY OUT :clap :clap :clap
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Re: over rich idle and cruise/awesome boost pull

Postby Gene » Thu Mar 26, 2020 3:37 am

New tires
non o-ring 630 chain.
She has a whole new 'nother personality.....

Where in the performance section did anyone mention swapping to a non o-ring roller.... to lessen the drag that a "sealed" chain has ???

She wheelies from 2nd, until the clutch blows away...
Looking at upgrading the weak link now that traction isn't it....
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Re: over rich idle and cruise/awesome boost pull

Postby Gene » Thu Mar 26, 2020 4:05 am

I'm registered with the government and Texas state as a tax-paying business.
If anyone has a GPZ Turbo needing service, tuning or upgrades...
send 'er to me....

When my fried clutch is fixed
and I can get race-way 1/4 mile times, I'll do it.....
after all this virus ordeal is past.

Everyone ride safe
and be careful.
Hope y'all are all ok in these uncertain times.....
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Re: over rich idle and cruise/awesome boost pull

Postby Betterthanfabio » Thu Mar 26, 2020 7:35 am

Gene wrote:Fuck you, ass holes.
"idiots"


You're really not trying to endear yourself to anyone on here are you?
I thought some of your ideas were interesting but ffs if your gonna carry on you won't last long on here or get much in the way of help.
Peace & chill.
You should try to know everything about something & something about everything.
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Re: over rich idle and cruise/awesome boost pull

Postby JezZedexE1 » Thu Mar 26, 2020 10:17 am

I'm registered with the government and Texas state as a tax-paying business.


Whoopeedoo!!!

I am also a registered company. Fortunately I don't need to grovel after slagging people off to earn a buck. :roll:
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1 x US ZX-750E2
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Re: over rich idle and cruise/awesome boost pull

Postby riturbo » Thu Mar 26, 2020 11:44 am

About time we got some new blood on this forum . :D With this virus thing Im getting kind of bored . :banana Even if his bike does look like dr frankenstein built it. We might actually learn something from him .After all new ideas is how things get invented .

Fuck you too .Rock on Bro :humour :rock
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