New Clutch = Whole New Bike feel!

heath_AU

Junior Member
Joined
Oct 24, 2009
Messages
116
Reaction score
2
Points
16
Location
Brisbane, Australia
Visit site
Hi All

Well on the weekend while doing a oil/filter change i decided it was also time to put some fresh new clutch plates in. (My baby has 135,000km up and most of them have been hard on the clutch)
So i tracked down a good deal on a EBC Street Racer Kevlar friction plates and heavy duty springs online (around $130 AUD) and went about installing them.

Its actually a much easier job than i was expecting, Very accessible due to the high location which is ideal.
Wanted to offer some tips to anyone thinking of doing it.
Firstly - make sure you have a new gasket (and maybe even some sealant too) ready to seal it up at the end.
Dont worry about the clutch holder the manual says to use. All you need to do is have one foot on the rear brake while you loosen/tighten the clutch spring bolts. Works a treat.
Oh and fortunately my steel plates were still like new so i was able to use these again - probably thanks to regular oil changes and correct clutch adjustment and usage.

2 main points to watch for -

1. DONT try and remove the plates with your fingers. The steel plates can be EXTREMELY sharp and i cut the f*^& out of my finger trying to fish one of the last ones out. A magnetised flat screwdriver works like magic

2. When installing the clutch cover at the very end, DONT put the gasket or sealant on first. Practice putting it on as you must have the index marks on the clutch lever and the clutch cover aligned when the freeplay is taken up (or it "stops" when you twist it against the spring) WHILE IT IS MOUNTED FLUSH.
(see attached image to see how it looks AFTER you have mounted it flush and taken up the freeplay)
clutch alignment.PNG
What this means is you need to estimate how far to have the lever turned around as you place the clutch cover on being careful to ensure the toothed clutch rod inside slides into the centre hole that joins to the lever outside. I did this a few times and found the perfect position was align the left (or leading) edge of the lever with the index mark and as you place it on the index marks should be lined up.

Oh and the new clutch is just amazing. I am not even exaggerating when I say this new clutch has such a better feel than the stock one did brand new,
And not sure how its possible but the heavy duty springs (EBC claim they are 15% stronger than stock) are even easier on the hand lever.
But I KNOW they are heavier springs as it was SOOO much harder to do up the bolts installing them - they felt closer to 50% heavier there - but not at the hand lever - but that said it bites beautifully but still smoothly. I could not be happier.

So I encourage you to give this job a shot. Obviously only have a go if you are confident, but be assured the job is probably a lot easier (and faster) than you may think


Til next time fellow FZ'ers

HeatH

;)
 

Pujazuba

Testing...gnitseT
Joined
Jul 5, 2016
Messages
77
Reaction score
0
Points
0
Location
Finland
Visit site
Thanks for the tips and glad you are happy with the feel of the bike.
I was wondering, in what order did you do the oil change & clutch work? Can you do the clutch stuff without draining the oil?
If yes, I would recommend clutch work, engine on for a short time, then oil change.
That is because the task will inevitably get particles into the engine oil unless done in ultra clean environment. This way you get the potential contamination out and ride off with uncontaminated fresh oil.
 

fazil

Junior Member
Joined
Jan 7, 2009
Messages
922
Reaction score
14
Points
18
Location
Istanbul
Visit site
Thanks, i'll read it again when time for a new clutch comes.
I wonder if you also changed clutch cable, may be that could also change the feeling ?
 

bigborer

Site Supporter
Joined
Feb 16, 2017
Messages
447
Reaction score
78
Points
28
Location
EU
Visit site
Did you measure the new and old clutch plate thickness?

Thanks, i'll read it again when time for a new clutch comes.
I wonder if you also changed clutch cable, may be that could also change the feeling ?
Unless it is rusted or dragging there's no point to change the cable.

To check if it's dragging, just unhook the end of the cable (clutch side) and notice how easy it glides. If it's dragging or binding, try to clean it by flushing some WD40 through the housing, then lube it.

Cable lubing is a disputed matter, personally I use PTFE dry lube (the brand doesn't matter too much) for all my cables (including bicycles); the Yamaha manual, as far as I can remember, recommends engine oil.
 

swedespeed

Member
Joined
Jul 20, 2017
Messages
228
Reaction score
2
Points
18
Location
ILLINOIS
Visit site
I dunno, I changed my clutch cable recently and it improved the lever feel tenfold. Original clutch cable wasn't dragging or rusted as far as I could tell.
 
Top