Project My '90 FZR250 3LN3

Found Kuratchi in the service manual supplement #1, bottom left of section 2-1, it say's 10mm-15mm but now i need to work out what it refer's to




I have the clutch cover plate off the spare engine, it hasn't been played with, i might try swapping that over too if re- soaking the friction plate's doesn't help

 

I have matched up the Hiragana symbol's and translated the above writing to Clutch lever but can't work out the 2nd to last symbol, the last word is no**bi, i reckon it might mean adjustment, so i need to keep searching

 

Bingo ^^, we have a winner !
The seat and tank aren't on the bike atm, so i'm standing on the left side holding the bike up to start it, then with the stand still, i down i flick it into gear and it stall's
Why didn't i think of that ?

thankyou

 

Cheer's
I hate it when the answer is staring me in the face and i still cant see it.

One thing with those narrow clutch fibre plate and spring's, when your clutch start's slipping, wouldn't it slip there first due to less surface area ?
I might try running mine without it still and the full size plate there instead, and see how it feel's.

I found a few thread's on different forum's about FZR400 clutch problem's, they mentioned swapping the narrow fibre friction plate's for normal one's
One guy even said that the narrow plate was for beginner's , what the ?

Well it'll be good to feel how much smoother the clutch is tomorrow when i get it back together anyway after fixing the ridge's in the basket
And see how close my carby adjustment is too.
Spewing though, i could have been out riding this arvo too, oh well, you live and you learn...

 

Thank's,
i did Japanese at school year 8, 9 and 10, but that was over 33 year's ago lol, some of the Hiragana looked familiar, that helped me get as far as i did.

Got the clutch back together this morning, i noticed the 2KR clutch spring's out of my spare engine were thicker than the 3LN spring's (2KR spring's may have been replaced with h/d spring's ?) so i used them in the clutch.
Had to make up a new cover gasket from a roll of gasket paper i have, and put it back together then adjusted the cable to suit ( i like about 10mm of freeplay at the lever)
Started the bike, pulled in the clutch, selected 1st and slowly let out the clutch, the bike started to move forward (no stalling with the stand up, lol)
I took the bike for a ride this arvo, clutch is perfect now, no slipping and no notchy feel.
The clutch lever feel's a bit harder to pull in than i used to, i like the feel of it now.
The clutch plate's still have plenty of meat left on them going by the spec's listed in the service manual supplement so it will be quite a while before i need to replace them

 

Rear wheel / tyre was easy enough to get off, 25 minute's all up including finding my stand, tyre lever's and rim saver's
Now to clean the rim up and get the new tyre fitted, are the Pirelli Sport Demon's ok or is there something better around the same price ?

 

I haven't used Michelin's before.
I've only had experience with the Bridgestone BT45's that come on my bike.

A mate has used them on his Honda XR400, he got the dot approved off road version's, so not really comparable with road tyre's.
But the day after fitting them we went riding out at our property, stayed the weekend and did about 250km's out in the paddock's having a bit of fun.
His new back tyre wore away about 40% of the tread on the rear and the front tyre started getting a few chunk's of tread off the knob's, my equivalent Dunlop tyre's on the IT200 hadn't noticably worn.
I'll ask the tyre man what he think's when i head over there soon.



Just cleaned up the bead surface's and gave them a quick lick of paint to stop corrosion.
Thought i may as well give them a quick clean with the soda blaster too, i got the whole back wheel done with 2.5kg's soda, took maybe 20 min's to blast.



These shot's are after blasting, and the rim hasn't been washed yet.


After 30 second's of blasting.
Soda doesn't affect the metal like sand blasting can, about the worst damage it'll do to the alloy at 110 psi is lose it's shine


Before, just showing a quick shot of what it'll remove

 

The front tyre seem's to pick up any repair's on the road, and we have lot's of them here in SA.
The tread has feathered about 1/2" to 1" either side of the channel through the middle of the tread too, the tyre fitter said that's pretty common for the Bridgestone's

I got most of the dirt cleaned up off the rim now, so i can take it to get a new 130/70/17 tyre fitted
The outer's on the rim will be repolished when i get a chance

 

Tyre fitter recommended the Avon Roadrider or the Pirelli Sport Demon, he said the next popular tyre was the Michelin Pilot Street radial.
He said he sold a pair of Michelin's to one customer who told the fitter that he had fitted the front tyre on backward's.
The fitter explained that he hadn't fitted it wrong and showed the customer the direction arrow that was on the sidewall of the tyre.
Customer said that Michelin had obviously made a mistake and still wanted it fitted the other way,
but after being told that he would have to pay to have it taken off again and corrected after the Michelin sale's rep confirmed that the tread pattern was opposite to the rear tyre he chose no to have it put on backward's.

I went with the Pirelli in the end.