Technical Talk for GK76A GSX-R 400

[FieryGiX]

Hi, people.

 

Feel that the old GSX-R400RR thread is getting way outa topic. Hence forth, will like to start this new topic purely on technical data and facts. As for G4 outings and roundings. Kindly restrict to "GSXR400RR riders"

 

I will be keeping an eye on this thread as to anyone who may need help or advice on GK76A.

 

For potential riders looking for 400CC sports, GSX-R 400 may fall into one of the selections other than ZX-4R and Babyblades. I try to list out a series of Pros and Cons which I have had experienced with my GSXR.

 

This thread is meant strictly for knowledge. I seek forumers co-operation as to practice self-reflection before posting offensive and non-contributing opinion.

 

 

http://www.suzukicycles.org/photos/suzuki-history/1995/1995_GSX-R400_blue_520.jpg

 

GSX-R400R 1995

Bore: 56mm (2.205")

Stroke: 40.4mm (1.591")

Overall Length: 1 995 mm (78.5 in)

Overall Width: 710 mm (28.0 in)

Overall Height: 1 060 mm (41.7 in)

Wheelbase: 1 435 mm (56.5 in)

Dry Weight: 169 kg (472 lbs)

Engine type: Water-cooled 398 cc inline-4, DOHC, 16 valves. 53 hp/ 12.000 rpm,

3,8 kg-m/ 9.500 rpm.

 

 

Horsepower Issues

----------------------

GSXR400 RR (1994 - 1996) - 53 bhp

GSXR400 MSP, SPII, LSP (1990 - 1993) - 59 BHP

 

* However, due to old age and different engine condition, the 6 bhp can't be feel

unless put on Dyno machine

 

Pros

--------

* Cheap

* Excellent "Price to Performance" Ratio

(Any Standard GSXR nowadays should reach up to 200 - 210 km/hr)

* Unique engine with tremendous Top-End if properly tuned

* Corner-carvers with excellent ground clearance

* Loud exhaust tone (2nd to ZX-4R)

 

Cons

--------

* Old age (Reaching 2nd cycle of COE)

* Electrical wiring issues (Common fault that can be easily identified and rectified)

* Parts prone to malfunction due to old age.

(i.e rectifier, brake system, Carburettor jets, CDI, timing chain, chain

tensioner, suspenion)

* Cradle frame leaves engine exposed to impact in a "low-side".

( Engine covers will be cut through with impact and in extreme cases, internal

mechanical parts also also be damaged in a fall)

* Lack of Performance parts (Legalised Yoshi, Micron)

* Torturing riding posture ( Standard Race "Ass-up, Arms-down" posture)

[fibre]

 

Keep up the good work!

[RicKTM]

Originally posted by Ae86@Apr 25 2004, 01:43 PM

Hi, people.

 

Feel that the old GSX-R400RR thread is getting way outa topic. Hence forth, will like to start this new topic purely on technical data and facts. As for G4 outings and roundings. Kindly restrict to "GSXR400RR riders"

 

I will be keeping an eye on this thread as to anyone who may need help or advice on GK76A.

 

For potential riders looking for 400CC sports, GSX-R 400 may fall into one of the selections other than ZX-4R and Babyblades. I try to list out a series of Pros and Cons which I have had experienced with my GSXR.

 

Horsepower Issues

----------------------

GSXR400 RR (1994 - 1996) - 53 bhp

GSXR400 MSP, SPII, LSP (1990 - 1993) - 59 BHP

 

* However, due to old age and different engine condition, the 6 bhp can't be feel

unless put on Dyno machine

 

Pros

--------

* Cheap

* Excellent "Price to Performance" Ratio

(Any Standard GSXR nowadays should reach up to 200 - 210 km/hr)

* Unique engine with tremendous Top-End if properly tuned

* Corner-carvers with excellent ground clearance

* Loud exhaust tone (2nd to ZX-4R)

 

Cons

--------

* Old age (Reaching 2nd cycle of COE)

* Electrical wiring issues (Common fault that can be easily identified and rectified)

* Parts prone to malfunction due to old age.

(i.e rectifier, brake system, Carburettor jets, CDI, timing chain, chain

tensioner, suspenion)

* Cradle frame leaves engine exposed to impact in a "low-side".

( Engine covers will be cut through with impact and in extreme cases, internal

mechanical parts also also be damaged in a fall)

* Lack of Performance parts (Legalised Yoshi, Micron)

* Torturing riding posture ( Standard Race "Ass-up, Arms-down" posture)

Go jack go!!! :cheer: :cheer:

[terry84]

steady lar honestly i oso have been looking at the gsx 400 thread and find tat mostly is tok about outing in these few recent posts.would want to noe more about this bike

[terry84]

and oso i seen in forum ppl tok about something like underseat rear shocks can be found in newer models of g4 or something lidat. is there a diff ??

[FieryGiX]

Originally posted by terry84@Apr 26 2004, 12:22 AM

and oso i seen in forum ppl tok about something like underseat rear shocks can be found in newer models of g4 or something lidat. is there a diff ??

I believe you are referring to the Remote Reservoir for suspenion, that is placed under the seat. That, my fren is a "Gem". Only a selected few of GSX-R400 in Singapore has them. It's main purpose is to enable full adjustment to the rear shock such as, rebound, dampening and Compression.

 

However, only a few units of GSX-R have them. If you looking for adjustability. U have to fork out more for Penske , Hagon or Customise Ohlin.

 

Some old GSX-R have their rear Susp bottoming out due to old age. It's irreversible and only way out is to start sourcing for a scrap one if that happens.

[Arcfire]

Originally posted by terry84@Apr 26 2004, 12:22 AM

and oso i seen in forum ppl tok about something like underseat rear shocks can be found in newer models of g4 or something lidat. is there a diff ??

You might be able to find them still but these are rare and most of the time these are juz there for show, probably fooked anyway.... go for the standard ones will do. If you wan adjustability u gotta go for the penske ones...its not cheap too....

[terry84]

thks for the effort to reply me:bounce: so not newer models will sure have the remote reservoir? btw even if get one most problably if problem arise will rectify it the more cost efficient way like wat Arcfire sae.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I want my Gixxer B4 july!~!!

 

im i counting my chickies b4 they hatch??

 

btw dun be surprise if all of a sudden u see a pizza hut bike go real close to ur G4 on road to stare at ur bike cos it might just be me...

[Guest VTECR1]

Originally posted by Ae86@Apr 26 2004, 01:18 AM

I believe you are referring to the Remote Reservoir for suspenion, that is placed under the seat. That, my fren is a "Gem". Only a selected few of GSX-R400 in Singapore has them. It's main purpose is to enable full adjustment to the rear shock such as, rebound, dampening and Compression.

 

However, only a few units of GSX-R have them. If you looking for adjustability. U have to fork out more for Penske , Hagon or Customise Ohlin.

 

Some old GSX-R have their rear Susp bottoming out due to old age. It's irreversible and only way out is to start sourcing for a scrap one if that happens.

I believe you are referring to the Remote Reservoir for suspenion, that is placed under the seat. That, my fren is a "Gem". Only a selected few of GSX-R400 in Singapore has them.

 

I think those GSXR are classifield as the SP model (KSP, LSP, MSP) The have different CDI compare to the normal type GSXR.

Oh the BTW they have close ratio gear box too( Damm gd to pull) :cheer:

 

IMO KSP rocks!!!! single seat and brace swing arm works dude!!!!!!!!!

 

 

It's main purpose is to enable full adjustment to the rear shock such as, rebound, dampening and Compression

From wat i know the remote can only control Compression setting. And the preload is adjusted by the C-spanner. As for rebound i not sure:sorry:

[FieryGiX]

For those who have not given up on this good old racer,

here are some eye candies and motivation for you.

 

Courtesy of "Team Otei"

[Arcfire]

Originally posted by VTECR1@Apr 26 2004, 02:01 AM

I believe you are referring to the Remote Reservoir for suspenion, that is placed under the seat. That, my fren is a "Gem". Only a selected few of GSX-R400 in Singapore has them.

 

I think those GSXR are classifield as the SP model (KSP, LSP, MSP) The have different CDI compare to the normal type GSXR.

Oh the BTW they have close ratio gear box too( Damm gd to pull) :cheer:

 

IMO KSP rocks!!!! single seat and brace swing arm works dude!!!!!!!!!

 

 

It's main purpose is to enable full adjustment to the rear shock such as, rebound, dampening and Compression

From wat i know the remote can only control Compression setting. And the preload is adjusted by the C-spanner. As for rebound i not sure:sorry:

Not to mention the diff carb as well!

 

But the remote reservoirs are probably not working anymore due to the age n lack of maintainence......remotes to nuthing....haha........

 

terry, u working as ph rider ah? at where?

[RayNg]

Originally posted by Ae86@Apr 26 2004, 02:20 AM

For those who have not given up on this good old racer,

here are some eye candies and motivation for you.

 

Courtesy of "Team Otei"

haha i give up on it lohz..

 

 

as for ppl looking for a 2a bike.. give it a try if u can find one in gd condition..

[ktkt]

Originally posted by Ae86@Apr 25 2004, 01:43 PM

* However, due to old age and different engine condition, the 6 bhp can't be feel

unless put on Dyno machine

Jack... 6 horsepower is alot of power!

[joekia]

Originally posted by Ae86@Apr 26 2004, 01:18 AM

I believe you are referring to the Remote Reservoir for suspenion, that is placed under the seat. That, my fren is a "Gem". Only a selected few of GSX-R400 in Singapore has them. It's main purpose is to enable full adjustment to the rear shock such as, rebound, dampening and Compression.

 

However, only a few units of GSX-R have them. If you looking for adjustability. U have to fork out more for Penske , Hagon or Customise Ohlin.

 

Some old GSX-R have their rear Susp bottoming out due to old age. It's irreversible and only way out is to start sourcing for a scrap one if that happens.

not to forget the one has a cartridge forks and the other has damping rod forks...

[joekia]

Originally posted by Arcfire@Apr 26 2004, 02:48 AM

Not to mention the diff carb as well!

 

But the remote reservoirs are probably not working anymore due to the age n lack of maintainence......remotes to nuthing....haha........

 

terry, u working as ph rider ah? at where?

hey... can we carry on the tech talk here??? instead of the other thread??

[FieryGiX]

Originally posted by joekia@Apr 26 2004, 11:54 PM

not to forget the one has a cartridge forks and the other has damping rod forks...

Care to enlighten us on this issue of difference in fork cos this the the first time I came into knowledge of this.

[joekia]

Originally posted by Ae86@Apr 27 2004, 12:08 AM

Care to enlighten us on this issue of difference in fork cos this the the first time I came into knowledge of this.

the SP models are running on cartridge forks which provides more options... rebound damping can be adjusted... dunno bout compression though... wheras the domestic models only have the option of preload for the front...

 

seriously juz my 2 cents worth...

 

for a clearer pic of wat's the difference between the 2 kinda forks, try this...

 

http://www.singaporebikes.com/forum/index.php?showtopic=5544

[IceZ]

Actualli RN model n RP model not much diffs.coz RN is 59hp/12,500rpm n RP is 53hp/12,000rpm.some says longer mod is faster but it depends how u play.

[IceZ]

Anione know wat is the disadvantage of back firing?And the proper way to clear carbon

[Arcfire]

Originally posted by joekia@Apr 26 2004, 11:55 PM

hey... can we carry on the tech talk here??? instead of the other thread??

Lolz....sure y not?

Btw, to add onto icez's question abt clearing carbon, is there anyway to remove if not all, at least most of the carbon present inside such an old bike of ours?

[ktkt]

Originally posted by Arcfire@Apr 27 2004, 01:31 AM

Lolz....sure y not?

Btw, to add onto icez's question abt clearing carbon, is there anyway to remove if not all, at least most of the carbon present inside such an old bike of ours?

U can try cutting the muffler, change the packing while you're at it, make it a

straight thru muffler as well.

 

Seng Kwang quoted me $260 just to do it......

[ktkt]

BTW, I've got 1/2 bottle of Redline Water Wetter left over from say abt 3 years ago.... Anyone want please come and get it from me.

[Kman]

thers is a unecesary wire in the CDI Remove it and response improve did it for my old bike hmm smoked all them fireblades on the road but stupid bike carb setting keep running every 4 mths sianz sold my hardcore baby for for a more gentle free reving bb any how dont ask which wire my crazy mech did it for me his nuts but the bike can fly with the rest of the above mention mods..

[Arcfire]

Originally posted by black black bird@Apr 27 2004, 02:39 AM

thers is a unecesary wire in the CDI Remove it and response improve did it for my old bike hmm smoked all them fireblades on the road but stupid bike carb setting keep running every 4 mths sianz sold my hardcore baby for for a more gentle free reving bb any how dont ask which wire my crazy mech did it for me his nuts but the bike can fly with the rest of the above mention mods..

interesting to hear tat but wouldn't wanna experiment wif that thou......one wrong move ------> new CDI........

[joekia]

Originally posted by IceZ@Apr 27 2004, 01:16 AM

Anione know wat is the disadvantage of back firing?And the proper way to clear carbon

how bout risking a extra hole in ur exhaust sounds??