Technical Talk for GK76A GSX-R 400

[joekia]

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?

how bout getting to the root of the prob instead of thinking how to remove it?

[Arcfire]

Originally posted by joekia@Apr 27 2004, 07:32 AM

how bout getting to the root of the prob instead of thinking how to remove it?

Trying to but can't seem to find the exact reason.... too many possibilities as mentioned by the others so i can't really determine the reason....... well, too much carbon being accumulated by the bike in the mufflers and other parts of the bike could be a reason as well so reamoving it might solve part of the problem?

[FieryGiX]

From my opinion, the cycle of an engine is :

 

=> air filter => carbie => cylinder => exhaust

 

Excessive carbon as we all learn from school is caused by incomplete or improper combustion. So that leaves us with the with the question of where all that carbon comes from.

 

1) Over time as we ride, our air filter get choked up with dirt and grime and less air goes through.

 

2) Since few of us know where to do air-fuel ratio tuning, the fuel setting naturally stays the same as when the air filter was clean and breathing well.

 

3)Hence many of us are running on a rich mixture given the ever-deteriorating air filter.

 

4)Over years and years of riding, the excessive carbon deposit at the mouth of the header pipes, choking the exhaust and restricting it's flow.

 

IMO, only way to rectifier the situation is to decarbonise the header, muffler and then get a clean air filter. Then tune the air-fuel ratio all over again.

[Guest Otei]

Hi guys,

 

My name is Tim,and i race the bikes pictured on my "team Otei" website.

 

I live in the Uk in Lincoln,if any of you would like a look at my website,the address is www.teamotei.8k.com

 

I am hoping to have an online workshop manual for the gsxr 400 soon,just the engine part,but it will be useful for engine rebuilds and stuff.

 

The forks on my bike are from an SP version,and have compression damping,rebound damping and preload.

 

My race bikes' rear shock is a fox pro race unit,but the standard item with the remote resevoir has compression damping and rebound damping,and preload using a c-spanner.It is also rebuildable,and i have totally stripped and refilled mine with fresh oil and recharged the resevoir with nitrogen (of course you have to have access to the nitrogen first!)

 

So before you go buying a new shock,or getting one from a bike breaker that may be just a tired as your old one,see if there is anywhere near you that has the facility to recharge the resevoir with nitrogen,that may be all it needs

 

Cheers,Tim.

[joekia]

Originally posted by Otei@Apr 27 2004, 04:18 PM

Hi guys,

 

My name is Tim,and i race the bikes pictured on my "team Otei" website.

 

I live in the Uk in Lincoln,if any of you would like a look at my website,the address is www.teamotei.8k.com

 

I am hoping to have an online workshop manual for the gsxr 400 soon,just the engine part,but it will be useful for engine rebuilds and stuff.

 

The forks on my bike are from an SP version,and have compression damping,rebound damping and preload.

 

My race bikes' rear shock is a fox pro race unit,but the standard item with the remote resevoir has compression damping and rebound damping,and preload using a c-spanner.It is also rebuildable,and i have totally stripped and refilled mine with fresh oil and recharged the resevoir with nitrogen (of course you have to have access to the nitrogen first!)

 

So before you go buying a new shock,or getting one from a bike breaker that may be just a tired as your old one,see if there is anywhere near you that has the facility to recharge the resevoir with nitrogen,that may be all it needs

 

Cheers,Tim.

 

 

sadly, the 76ers in singapore mostly comes wifout the remote reserviors... even the domestic models... been to ur site some time back.. care to share wat size of main jets u guys running on to compliment the ram air?

[Guest Otei]

To be honest i've had so much trouble with the tuned engine,that i haven't even had a chance to try the ramair system out yet.

 

I would imagine that the jetting will be increased quite a bit though.I'm going to get it running with a standard engine first,then i'll test it with that engine in,so that i can see if there are any power gains..should be interesting!

[Guest Otei]

As for the remote resevoir rear shocks,you can get them over here no problem,seems a shame you can't get them.

Maybe i'll come over on holiday and fill my suitcase with remote resevoir shocks for you guys! loL!

[IceZ]

You better be Tim...we look forward from you.Hope you come here someday as we can share n exchange ques n ans.

[FieryGiX]

Originally posted by Otei@Apr 27 2004, 04:18 PM

Hi guys,

 

My name is Tim,and i race the bikes pictured on my "team Otei" website.

 

I live in the Uk in Lincoln,if any of you would like a look at my website,the address is www.teamotei.8k.com

 

I am hoping to have an online workshop manual for the gsxr 400 soon,just the engine part,but it will be useful for engine rebuilds and stuff.

 

The forks on my bike are from an SP version,and have compression damping,rebound damping and preload.

 

My race bikes' rear shock is a fox pro race unit,but the standard item with the remote resevoir has compression damping and rebound damping,and preload using a c-spanner.It is also rebuildable,and i have totally stripped and refilled mine with fresh oil and recharged the resevoir with nitrogen (of course you have to have access to the nitrogen first!)

 

So before you go buying a new shock,or getting one from a bike breaker that may be just a tired as your old one,see if there is anywhere near you that has the facility to recharge the resevoir with nitrogen,that may be all it needs

 

Cheers,Tim.

Hi Tim, Jackson here.

 

Don't know if you seen this before but hope it helps you in any way.

Thanks for the frame protector idea.

Will try to post it online so others can share.

 

GK75A

[FieryGiX]

For those GSX-R rider who are crying out for frame sliders, here is something that our friend from Team Otei had contributed.

 

It's fitted on their race bike and mounts onto the engine-mount.

[FieryGiX]

Frame Slider's pic

[FieryGiX]

Frame Slider pics

[Marlboro]

Originally posted by Otei@Apr 27 2004, 07:13 PM

As for the remote resevoir rear shocks,you can get them over here no problem,seems a shame you can't get them.

Maybe i'll come over on holiday and fill my suitcase with remote resevoir shocks for you guys! loL!

hahaha....i sense something fishy

as it get longer...the PLOT thickens

[FieryGiX]

Originally posted by Marlboro@Apr 27 2004, 09:45 PM

hahaha....i sense something fishy

as it get longer...the PLOT thickens

I stress again that this thread is strictly for technical knowledge. Any senseless, irrelevant and offensive remark will be noted and reported to moderator.

 

Thank you.

[IceZ]

Frame Slider!!!! oh boy....finally on a g4.I ever thought of custom one wif the welding machine but since i cant b bother coz it take times...cant wait to see tis on sg.

[Arcfire]

Originally posted by Ae86@Apr 27 2004, 09:13 PM

For those GSX-R rider who are crying out for frame sliders, here is something that our friend from Team Otei had contributed.

 

It's fitted on their race bike and mounts onto the engine-mount.

woah...frame sliders..... but wait a minute, mounts on engine mount? hmmm...wouldn't that juz destroy the threading in the engine block itself in the event of a crash? n the shiny metal piece looks pretty long....would it bend or snap in a crash? seem likely to n would probably damage the fairing anyway due to the small size => greater pressure?

[Guest Otei]

wouldn't that juz destroy the threading in the engine block itself in the event of a crash

 

There isn't actually any threading in the top rear engine mount,so there's nothing to damage.(have a look on your bike,there is actually a gap where you can see the engine bolt itself through the casing.

 

As for damaging the fairing,well i've tested these twice,the first time at 100mph + and the fairing was destroyed,but then hey,what do you expect at 100mph!??

 

The second time i did it at about 45mph,and although it didn't entirely save the fairing,it was totally useable for the next race without any repair.

 

The main point of the sliders (for me at least) was to protect the vulnerable engine cases,and hence the crank etc inside them,it does this very well indeed.

 

Cheers,Tim

[FieryGiX]

Hi people, I just stripped my entire front brake assembly, caliper and everything. However I just can't seem to get that brake stem out from inside the brake level.

 

Anybody know what is the cost of brand new set of piston oil seals for the calipers?

[joekia]

Originally posted by Otei@Apr 27 2004, 07:13 PM

As for the remote resevoir rear shocks,you can get them over here no problem,seems a shame you can't get them.

Maybe i'll come over on holiday and fill my suitcase with remote resevoir shocks for you guys! loL!

i wun mind if u come wif a bag full of hagon shocks... it'll be cool... there's alota 76a written off in sillypore... if u ever need spares, u might wanna check this small country out..

[ktkt]

Originally posted by Otei@Apr 27 2004, 07:11 PM

To be honest i've had so much trouble with the tuned engine,that i haven't even had a chance to try the ramair system out yet.

 

I would imagine that the jetting will be increased quite a bit though.I'm going to get it running with a standard engine first,then i'll test it with that engine in,so that i can see if there are any power gains..should be interesting!

Hmm.... Please do let us know the outcome of the RAM Air result.

But how did you get the carb pressurised to match the air box?

[ktkt]

Originally posted by Ae86@Apr 28 2004, 06:03 PM

Hi people, I just stripped my entire front brake assembly, caliper and everything. However I just can't seem to get that brake stem out from inside the brake level.

 

Anybody know what is the cost of brand new set of piston oil seals for the calipers?

Maybe you can either go down and visit KS or ask tealeaf for the tel no. which you can inquire over the phone.

 

Brake stem inside the brake lever?

[FieryGiX]

Originally posted by ktkt@Apr 29 2004, 08:17 AM

Maybe you can either go down and visit KS or ask tealeaf for the tel no. which you can inquire over the phone.

 

Brake stem inside the brake lever?

It's the small brake pump inside the brake assembly. Just found out it's secured by a C-clip. What tools do I need to remove the C-clip?

[tealeaf]

Originally posted by Ae86@Apr 29 2004, 10:03 AM

It's the small brake pump inside the brake assembly. Just found out it's secured by a C-clip. What tools do I need to remove the C-clip?

C clip? a round looking one with 3 pointy edges at the centre & 2 edges?

use a long nose plier will do, beware of it bouncing away when pulling it out. if u intend to re-use it, take care not to get it too out of shape.

[Guest Otei]

Hmm.... Please do let us know the outcome of the RAM Air result.

But how did you get the carb pressurised to match the air box?

 

I thought about trying to make it a genuine pressurised airbox,but in reality,these things only really make gains when used on something like a jet aircraft.

 

What i've developed will be more of a force feed of cool dense air into the new larger airbox,as the stock system just doesn't breathe properly at all..i mean the entrance to the airbox faces the arse end of the bike for christs sake!..what were they thinking? plus there are 2 air intakes on the side,and only one of them feeds anything...and even then it's through tiny holes in the frame rail!

[ktkt]

Originally posted by Ae86@Apr 29 2004, 10:03 AM

It's the small brake pump inside the brake assembly. Just found out it's secured by a C-clip. What tools do I need to remove the C-clip?

Eh.... a Circlip remover if the tip of the long nose plier fails?