www.YamahaR.co.uk

so at cadwell park saturday bike was fine for 4 sessions.
went out for 5th session false neutral between 4th and 5th quick shifter fitted.
did this 3 mo…login to view the rest of this post

have you checked the wire/clear connectors normally there is a red and i think yellow cable which is power cable that corrodes and messes up i think i…login to view the rest of this post

sorted
after checking everything again
i disconnected the battery left it 15 mins
reconnected
hey presto all working again

i can get hold of a 5vy speedo
checked all round internet and only one post that someone fitted 5vy speedo onto 4c8
direct replacement apparently
tr…login to view the rest of this post

hi got a problem with gauges
no digital display showing at all no tacho readings either
neutral light is still on
checked fuses and wires also conne…login to view the rest of this post

Hi i have been looking at the bazzaz traction control unit for the 08 I understand how it works etc .
Has anyone actually fitted one and used it on the…login to view the rest of this post

good piece of advice
makes the job easier

while the engine is still in the bike

remove the carbs by loosening the 4 x 3mm allen bangos
and leave t…login to view the rest of this post

well i was dreading doing this looked so complicated and hard.
but turns out it was a lot easier than everyone has made out.
engine out in a few hours
s…login to view the rest of this post

i have a 4xv track bike
cadwell park to many times to remember
i use 2 different rear sizes if dry a 45t if wet go down to 43t i found with the 43 you…login to view the rest of this post

will a 5vy gear shaft fit in ????

cheers Mark
can i use the 5jj parts as in the cogs (dogs)on the 5jj have 5 holes instead of the 3 on the 4xv ones

hi
well the 2nd gear has started to go (4xv)
so i want to change the gearbox or fix it
is there any upgrades first to make it last longer
and where can …login to view the rest of this post

decatted already
akro pipes
no o2 sensor
commander 3 with custom map 171 on dyno
still just feels like there is lag on throttle though
might just be me being old school

cheers jompy
if i had to i would get rid of the 4c8 to be honest
not to keen on the fly by wire throttle feels like it has not got the same feel as pull the throttle and go it seems to have a instance of lag

just thought i would say hi

am on other sites under same name and looking around seems so are a few of you

history

tzr125
fzr600
thunderace
r1 5pw
thundercat -trackbike
r1 4c8
r1 4xv-trackbike

as you can see a bit of a yam man love em compared to anything else and so easy to work on

much prefer ...

on the 4c8
metzeler racetecs k2 rear = 1000-1500
k1 front= 2000
run lower pressures in them aswell 30 front 26-28 rear
had a k3 rear once £180 got 1500m…login to view the rest of this post