fzr400 exup

**merv** · 11th August 2007, 14:46

Originally Posted by Str8 Jacket

Congrats Paul. You've done a great job and im glad that all your hard work has paid off! Was kinda contemplating looking at buying it back off you..... But then reality hit me!

You did look good on that bike you know!!

**Colapop** · 11th August 2007, 14:50

You'll look better on a SV...

**limbimtimwim** · 11th August 2007, 15:10

Originally Posted by Paul in NZ

#1. Its still running rich - quite a cloud of black with a good fist full of throttle... Hmm! I've not kitted the carbs yet with the dyno jet kit as I'm not sure it's the right one (will research)....

Silly question: Are mixture screws set correctly? Like you didn't go one whole turn too far or something? Been there, done that..

#2. The front end feels a bit clumsy - I'll swap out the oil this arvo...

It always did!

**Paul in NZ** · 11th August 2007, 16:08

Originally Posted by Str8 Jacket

Congrats Paul. You've done a great job and im glad that all your hard work has paid off! Was kinda contemplating looking at buying it back off you..... But then reality hit me!

The offers still there mate.. But honestly... I'm pretty sure that this is not really the bike for you - it's near on 20years old and her glory days are gone - theres a lot of use left in it but it needs a garage and regular fettling to keep it in top form.. Frankly - they always have!

Cheers

**Paul in NZ** · 11th August 2007, 16:10

Originally Posted by limbimtimwim

Silly question: Are mixture screws set correctly? Like you didn't go one whole turn too far or something? Been there, done that..It always did!

Yup - going to have to look at that - it's odd though because when it's cold it's OK.. hmm - either way I need to put a few miles on it and bed in the rings before I'm sure there even is a problem - I was more wondering if there was some 'other' endemic problem with this model I don't know about (yet)...

**merv** · 11th August 2007, 16:27

If its too rich it will seem OK when its cold.

Its not a case of the carbs not being insulated well enough from the heat of the engine or something like that is it?

**Deviant Esq** · 11th August 2007, 17:06

Must confess I don't know a great deal about these things, but the choke isn't causing the problem is it? If the choke were stuck then the mixture would always be too rich... but it wouldn't be a problem when starting the bike or running while cold. Is it a manual choke or automatic one?

**Paul in NZ** · 11th August 2007, 18:15

Originally Posted by merv

If its too rich it will seem OK when its cold.

Its not a case of the carbs not being insulated well enough from the heat of the engine or something like that is it?

Yes and no.... Its only rich - sometimes.... I don't have enough experience with it yet.. Quite odd!!!! It could be a few things but I'll solve it eventually.. The carbs are well insulated - new rubbers.. Hmm! Mind you - it would help if I had a manual for this model.. ;-)

**Paul in NZ** · 11th August 2007, 18:16

Originally Posted by Deviant Esq

Must confess I don't know a great deal about these things, but the choke isn't causing the problem is it? If the choke were stuck then the mixture would always be too rich... but it wouldn't be a problem when starting the bike or running while cold. Is it a manual choke or automatic one?

Checked the choke out when I had the carbs on the bench - someones dicked with it at some stage but looked like they were shutting down..

**Paul in NZ** · 12th August 2007, 20:22

Finally got most of the jobs done by 4:30 so i thought I'd rack up some miles... Bike sarted - cut out and refused to fire... Flooded I guess? Anyway - jumper leads had it spinning a tad faster and off we went - over the Paekak hill, up the Hutt Valley and up to the top of the Rimutakas... The FZR ran better as and better as the km's clicked on... I was taking it really really easy as it's no great shakes in the suspension dept and the road was wet and cold... As for the headlights?? Gleep! It may have 2 but golly - they need some work!

So - 140km racked up! No oil or water leaks - running better all the time... A few times I rang the rpms up and it gets the bit between it's teeth allright.

I'll back the rear shock off a bit to see if that calms its wayward behaviour down when hitting bumps - changing the oil in the forks did nothing.. I have a feeling - you could spend a bloody fortune getting it really good...

I'm not worring about the non start today as I screwed it up when attempting to get it to idle cold.. (ie it fired up and then I killed the choke too soon)

**scracha** · 12th August 2007, 20:34

Replace the 20 year old $hite 80's spec bulbs with new Osram or Philips ones...they're about twice as bright for the same wattage.

**FROSTY:Me** · 14th August 2007, 21:03

Paul Be carefull upgrading the headlights. They are plastic and melt if ya raise the wattage.Try using a VERY mild cut n polish on the lenses --itll clarify em and might ipprove the lights.
Re the rich running. Once you have a few more miles on the clock and have changed the oil to a semi synthetic have another look.
If she's still rich then dont touch the jets.try dropping the needles one notch.--youll be able to do that without removing the carbs.
Re the suspension. I'd be double checking you have the correct quantity of fork oil for THAT bike and possibly go up viscosity by 5 weight.
Give G percival a yeodle --He's got a fair bit of experience with that model