Toddy64

Dohhh!! Sorry guys, it's a GSXR 1100K 89 1127

Just noticed a slight oil leak from the drive shaft oil seal (behind the front sprocket) and wondered if the crank cases need to be split to replace, or if anyone can advise on best way to remove and replace without splitting? tia

Not sure if this may help, but my 89 1100 K deffo runs a 14mm piston as standard (its cast into the master cylinder) my push rod measures 101.5mm last time i checked. Had similar issues to yourself trying to tidy up the Renthal bars with a modern looking unit, Cheap Chinese Brembo copy a non starter, got close with a 14mm VTR1000 unit, even tried 100mm and 104mm rods to no avail. So ended going back to standard MC and typically its working fine (other than clutch slip) but that's another story Hope this helps

Yes the 4-2-1 downpipes are identical to the Yoshi Cyclone on my 89 1127, as for the can? not sure

Thanks TonyGee, by springs do you mean the two dished diaphragm type ones? No.16 in the parts diagram?

Hi Chaps, The Clutch on my old girl (GSXR1127K 89) has started to slip and i'm assuming that due to age it may be the Drive (friction/fibre) plates are on the way out, it still drive fine but slips at higher speed and revs, when overtaking a car on an A road for example Having had a quick look at the prices was horrified to see the oe ones at £17 each x10, compared to an EBC set at half that price, and the APE Track King ones being circa £100 a set. So i guess the question is are the cheaper ones useless? Surely not? I wont be Racing or doing track days, and the bike has circa 35000 miles on but is 32 years old, and was stood for 10 years until about 3 years ago. As I obviously don't want to be doing the job again in a couple of years, any advice and or tips on what to look out for when doing the job are much appreciated, tia

Assuming it’s the same colour as a 89K, try RAL7021

I had similar issues with my 1100K that had been laid up for many years. Cutting out when engaging first, and still trying to creep when warmed up. I’d also replaced the perished 30yr old line with braided and it was a bugger to bleed up. Eventually out of desperation and a possible cheap fix I stripped, and cleaned the Slave Cylinder replacing the seal and spring. It now works perfectly, though that may have been pure luck and the dormant clutch plates starting to work, who knows, but certainly worth a try

Ah thanks for looking Dezza, no worries.

Haha Dezza, honestly I’m not that fussy, it looks good enough for me for now. May even get round to doing it properly one day if I ever get the engine out. By the way, did you ever fish out that RGV solo seat you kept tripping over, I may be able to make something of it for the cost of postage

Nah, honestly Tony, it’s absolutely spot on, I was quite surprised, a nice Satin finish as it says on the tin (sounds like a bloody Ronseal ad) iirc I think I found the colour code on an American gsxr type site, they of course had the luxury of the correct PJ1 type stuff. Loving the Halfords Volvo grey, may give that a try too

I found the correct engine colour RAL7021 Black Grey from Huddersfield Autopaint, and although this is not actually engine paint, it certainly gave my 1100K a welcome refresh. Had I actually removed the engine I would have probably searched for the proper stuff, but this has lasted a season well, and as long as I don’t spill anymore petrol or clutch fluid on it, I expect it to last a few more years. Defo worth a try as I think I paid about £15 for a single can

I’ve been following similar threads as I’m fitting a 750K1 arm to an 1100K and having a mare getting things in line. Thankfully I’m sticking with my Slingshot wheels for now, however @MeanBean49has plenty of helpful info on similar regarding machining 5-10mm from your sprocket carrier etc to move it inboard, dependant on front sprocket offset.(as the 750K rear sprocket is indeed 10mm further from wheel centre than a Slingshot) If you’re happy to run 520, an XR650 front sprocket gives you 4mm offset for a sensible price

TonyGee, that is actually what I ended up doing, 520 non o ring chain, XR650 01-07 front sprocket with 5mm more offset than an 1100k one, and 5mm spacers behind rear sprocket. Not ridden yet but all seems to line up and more importantly clears the swingarm (bearing in mind a K1 wheel has the sprocket a further 10mm from centre than a Slingshot) so fingers crossed

Yes please Dezza, no massive hurry as I need to get this bleeding swingarm sorted, hoping to be there once the 520 chain arrives. Was the seat a reasonably easy fit?