GSX-R400 GK71F

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Just got my hands on this little pocket rocket,
Can't wait to get it on the road, its still got mot but the bike is in need of a few man hours and some cash throwing at it.

First thing i did when i got her home was to strip the back end out
seat off, plastics, seat hanger, battery tray, back wheel, mud guard all taken off, got in there with the degreaser a tooth brush n some good old elbow grease.

Re-painted the seat hanger, battery tray and shock,
new chain and sprocket, new rear indicators.

Im now part way through stripping the front end, going to need a full exhaust system, fork seals, some more degreasing !! and a paint up of the rad guard n clock hanger,

Brake calipers will need looking at, tank requires a re-spray
the list will go on no doubt,
well thats where i am at the mo!!

Heres is a few pics of the bike

[prawny1]

My brother had a d-reg impulse (gk71e) had a right game getting it to run right turned out to be a pulse coil breaking down, just a heads up incase yours starts playing up and running on two cylinders. We changed everything ignition coils, plugs, cdi, we stripped the carbs loads of times even did the valve clearances a couple of times before we figured it out.

[TAX MY BRAIN]

Cheers for the advise,

The bike seems to be running ok apart from running a bit rich...
have been told this could be due to warn carb rubbers, wondered if your brother had the same trouble or you could advise ??


im just waiting on a set of forks and a set of exhaust headers
soon as got them fitted will be tackling the task of getting the bike running sweet,

Need all the help i can get the parts are hard to find and this is the first suzuki i have ever worked on,

looks like i picked a pig !!

well nothing like a challenge hey !!
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[Gazdaman]

Worn rubbers would make it run lean if anything. I'd suspect it's got a dirty air filter.

Keep us updated with the project!

Gazb

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thanks for the tip there, new air filter needed by the sound of it, going to bung new leads n plugs, oil n filter change also,

The bike has had years of neglect..... good job the bloke who had it before me loved chain lube and not cleaning it....... under all that grime its in good nick !!

Will keep you all updated on progress, going to add more pictures once i figure out how to make the pictures small enough to post
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[TAX MY BRAIN]

The bike so far
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[Gazdaman]

Rear end's come up a treat! White wheels are good for that, with a bit of elbow grease they look stunning.

Gaz

[Blau Zedong]

Good little bikes in their time. They came to the UK offcially in small quantities through the Suzuki ambassador scheme so you might be able to source an English manual and some spares via "normal" dealers.
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18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

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cheers for the advise,
This bike is a pain in the a*** to get bits for the closest bike i have found is the gk71b the british version of the bike ( i belive ) correct me if im wrong,

The bike came with a manual buts its on cd-rom bit of pain to look through, would much rather flick through the page of a book!!

Gonna try a set of exhaust headers for a gk71b that i got off fleabay, will have to see if they fit, the ports should line up its just the angle it takes under the sump that worries me !!

Also got a set of forks for a later model, complete with yolks and bearings , im hoping these will bolt straight on !!

Wish me luck or call me a fool and say no way they wont fit

well fingers crossed
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[jack_zxr400]

good luck with it!

looks like its going well so far, hope to see the final pics
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Previous Bike: ZXR 400
Current Bike: R6
Test Date: 8/8/2008-PASSED

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The forks came today........and guess what........they are a couple a mil bigger than the original's on the bike and the axle bolt is differant,

Plan A

If i go down the route of making these fit im gonna need handle bars to fit these fork tubes an axle bolt and i thinking the wheel spacing may not be the same so could be another wheel too.
its sounding like a nightmare.

plan B

Get the old forks re-cromed.

Plan C

try to find some forks that will slip straight in,

Ideas anyone??

p.s thanks for your post's they will be an engouragement to keep going with this project !!
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[MarJay]

Looks good, I like the shape of the tail looking at it from the rear, but from the side it looks a little dated. Thats kinda cool in itself - but I couldn't be doing with having 'Full Floater' written on the side of my bike!!
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[Mudskipper]

You might find a browse around the 400GB and old skool suzuki forums helpful too:

https://www.400greybike.cc/newforum/index.php

https://forum.oldskoolsuzuki.info/cgi-bin/Yabb/YaBB.pl


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CBR125|||GSXR400|||CBR400|||CBR400|||CB250RS|||GSXR750|||CB250RS
"You're clumsy, you eat too much and you behave like a 12 year old boy. But you know what? Every once in a while, you find a thumb."

[Kickstart]

Hi

Fork wise I would get them rechromed.

As mentioned there was a small batch imported officially of that model (I was told 50 were imported, mainly intended to be sold for racing). Pretty rare though even when newish.

Don't think the gk71b was officially imported.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Blau Zedong]

The UK bikes are the exact model you have, although most were blue rather than red. I think the impulse is the same mechanically so that might be a starting point for spares. If you want I can scan a potted history of the 400 suzi's so you can see what all the different models look like.
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18:54:48 Rob Fzs: jews don't give away stuff for free

18:54:59 Rob Fzs: unless its their clothes/ hair/ golden teeth

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Cheers marjay
RE- FULL FLOATER......

It does'nt look good the full floater bit and i can tell you for sure it will be coming off when its re-sprayed !!,

im guessing its the japs who put this on with no thought to what it meant in english

dont want it known as the turd bike !!
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[TAX MY BRAIN]

full list and spec of the gsx-r400
just follow the link below not sure how to add link just cut n paste to your browser

https://www.suzukicycles.org/GSX-R-series/GSX-R400.shtml
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[TAX MY BRAIN]

[Kickstart]

Hi

Afraid 99% of streetfighters to me just scream "wreck that the owner couldn't be bothered to fix".

Personally I would fix it. With luck the fairing lowers will be available as a fibreglass piece, but probably no longer advertised.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[TAX MY BRAIN]

[TAX MY BRAIN]

The exhaust turned up yesterday........

Its from a gk71b and guess what it fits !!!!

so if there is anyone out there hunting for a set of down pipes too fit a gk71f grey import i can assure u a gk71b fits,

gonna have to modify it a bit so i can get an end can too fit,

soo all is looking good,
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i also ride the local bike.............she's like a moped great fun to ride as long as your friends dont see you !!

[TAX MY BRAIN]

Was having trouble finding a set of forks....... a mate said go see gary burton at cawston just down the road from where i live in norfolk ( g.b motorcycles ).

Turned up to his workshop bike parts piled high as the eye can see
asked if he had a set of gsxr400 gk71f forks, now let me see, yeah i got a gk71f in a barn down the road so off i go tools in hand with the young saturday boy in tow,

The barn doors swing open and there it is a gk71f with a great set of forks on it , my lucks in here !!

I undo the forks and take the cailpers to thinking these could come in handy,

I head back to the workshop and do a deal for £40 bargin ,

The bike had sat for 10 years and no one has ever asked for parts for a gk71f EVER !!

Moral of the story sod fleabay get yourself down to your nearest motorcycle breakers you never know what will turn up

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so the restoration is back on track,
all thats left to do now is fit forks, exhaust and can, and a few little minor jobs

Then its painting the fairing's that need a bit off plastic welding too,
so all is looking good,

the next question is do i prep and paint the fairing myself or pay a few quid to get a real top class job ??

[Kickstart]

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