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GPz750 Injection

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RUDDY
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GPz750 Injection

#1 PostAuthor: RUDDY » Wed Sep 05, 2012 9:53 pm

Just wondered if anyone had any info on these twin shock injections, I didn't even know they existed until about 12 months ago ?

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#2 PostAuthor: z1bman » Wed Sep 05, 2012 10:04 pm

only early 750 with fuel injection to my knowledge is the gpz 750 turbo + that has a mono shock suspension

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z650freak
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#3 PostAuthor: z650freak » Thu Sep 06, 2012 7:28 am

No there was a very limited run of fuel injected gpz750 twinshocks. You wont see many of them though. Have only seen one for sale in at least the last two years.

You might even come accross a US GPZ700 version if you are lucky.

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#4 PostAuthor: RUDDY » Thu Sep 06, 2012 2:44 pm

It would appear from trawling the web that the GPz750R injection was for the Japanese market only in 1982, however a few did go over seas.

I did a deal to pick buy a GPz750 last night, when I got there I did a few straight forward checks and all seemed fine, when I removed the seat I noticed an ECU in a factory fitted bracket under the rear tailpiece. I knew that the injections ran a different fuel tank so I had a quick look underneath and sure enough the tank had a built in 'swirlpot', also there were various unplugged electrical connectors tucked away under the tank. Underneath the r/h side panel is a round bracket that does not exist on my UK 750R1 and I think this would have been for a pump or regulator as the bike is running carbs.

The bike was imported in 98, either from Japan or the US, the stickers under the seat are all in Japanese with no UK translation.

The bike does not have an oil cooler and the fitting in the sump has a factory look blanking plate on it, the bkts that secure the headlight are again different to my UK bike as it appears these never had fairings, there is a 'KAWASAKI' emblem covering the brake splitter (this would normally be covered by the fairing)

The bike is on original exhausts and the rear mudguard is uncut but of the shorter US type

A few rubbish pics off my phone

ECU, loom still has factory part sticker on it

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Swirl pot in tank bottom

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Pump bkt ?

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Sticker under seat

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Plastic finisher/cover

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Straight lamp bkts, UK bike has a dogleg in them

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#5 PostAuthor: steve.w » Thu Sep 06, 2012 5:21 pm

whats a swirl pot ?? thats the plastic cover what goes over fuel sender(they all have em unis as well.. normally a pipe connected what goes over back of engine so if sender leaks it doesnt piss petrol all over hot engine) .. if it was an injection it would have a fuel return in the tank mate :wink:

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#6 PostAuthor: Mark Tiller » Thu Sep 06, 2012 5:44 pm

the second picture looks like a CV carb

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#7 PostAuthor: RUDDY » Thu Sep 06, 2012 5:45 pm

Steve, your right mate, just checked my other tanks, I need to get to bed earlier, but this one does have a return into the tank that is blanked off as well which the others dont have, also the fuel tap is totally different to the other tanks.

Cheers, Paul
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#8 PostAuthor: garyd » Thu Sep 06, 2012 6:07 pm

Sounds like you have one that needs to be tucked away until people wake up to it's rarity...

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#9 PostAuthor: steve.w » Thu Sep 06, 2012 6:14 pm

RUDDY wrote:Steve, your right mate, just checked my other tanks, I need to get to bed earlier, but this one does have a return into the tank that is blanked off as well which the others dont have, also the fuel tap is totally different to the other tanks.

Cheers, Paul
well its rare mate .. :D

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#10 PostAuthor: RUDDY » Thu Sep 06, 2012 6:48 pm

Managed to find an obscure Japanese site that seems to cater to the 750 injection, a few pictures below, the black colour scheme is identical to my bike.

Side panel badge seems to say GPz750 Fuel Injection

Cheers, Paul

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#11 PostAuthor: RUDDY » Thu Sep 06, 2012 8:03 pm

Also found this official looking image, and below it a pic of my bike

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On this image you can see the pump/regulator inside the frame below the side panel, my bike only has the bracket remaining.

I guess finding injection parts would be a non starter ?

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#12 PostAuthor: steve.w » Thu Sep 06, 2012 8:04 pm

i thought i knew all about the 750s but obviousley i dont .. :oops:

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#13 PostAuthor: Taffus » Thu Sep 06, 2012 8:10 pm

good looking bikes though!
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#14 PostAuthor: z650freak » Thu Sep 06, 2012 8:13 pm

RUDDY wrote:I guess finding injection parts would be a non starter ?



Early unitrack?

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#15 PostAuthor: RUDDY » Thu Sep 06, 2012 8:22 pm

Guys, is it just me or does the black bike on the official looking photo not have an oil cooler ?
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