cnap504

I’m going to remove the plates on both bikes and measure the thickness of both the metals and frictions. My main riding buddy is a retired motorcycle mechanic from one of the most competent mc service departments in this area and he tells me the clutch “stack” height is very important to the proper function. So much so that Suzuki sent their dealerships a specific weight to place on a workbenched clutch so they could be consistently measured. He no longer has access to these measurements. He also tells me to achieve the correct stack height Suzuki had different thickness steels available, I will post my plate measurements when I get them, but does anyone know more about this “stack” height situation. As always, thanks

They both were non running bikes one with a known history of proper care until 10 year storage and the 1000sz unknown history. The sz had the broken plates and a lose main shaft nut. The 1150 clutch I couldn’t find any mechanical damage so to cure its slippage I tried 3 heavy Barnett springs. Seems to have cured the slip but it now drags (no shifting when cold, no neutral when hot). Motul MC mineral 10/40 oil filled to the correct level.

Thanks everyone for the tips. Both of my clutch “fixes” haven’t worked. The 82 Katana still slips after replacing broken friction plates and a new main shaft nut (the original had gotten lose). It also got three heavy Barnett springs staggered with three new oems. Everything looked to reassemble correctly sept it slips. The 1150 too would slip just like the Katana the clutch would completely surrender without warning 2/3rds the way up the rev range, so took it apart and no apparent damage. So I thought this one will be easy, put three hd springs with 3 std’s, now it drags won’t shift cold and no neutral at a stop. I’d like to measure the stack height? of the clutch pack? What exactly is that, how do you do it and what measurement should I look for? I don’t race or ride the bikes hard so I could get along with a temperamental clutch but I don’t want to quit just yet. Thanks again

Who supplies these pistons, the largest 1100gk overbore I found was 74mm 1135cc from Dynoman.

I like slabbies. I bought the first blue & white GSXR1100 (1986) to come to New Orleans. They were a quantum leap in engineering and performance. Sorry to this day that I sold it.

A bit aggravated. I removed the clutch plates and there wasn’t any damage. The main shaft nut that sometimes gets lose was fine. I staggered 3 Barnett heavy springs with new oem springs and reassembled the clutch. Now it drags, won’t shift until warmed up and neutral is hard to get at a stop. From intermittent slipping to incomplete disengagement. Also changed oil to Motul 10/40 mineral. Something aint right

How big can you bore a GS1100gk cylinder for reliable street use? They are 72mm from the factory

TriSodiumPhosphate, aka tsp

Will a 2 valve 1000 fit in this frame without too much trouble?

neilw; the spring you referred to was missing or worn out ? Thanks for the response

I’ll have a look

Recently got a non running 1982 Katana 1000, it had some typical long term lay up issues but I have gotten it running and riding reliably. On upshifts if I’m very deliberate it engages the next gear, anything less than a careful upshift requires a second attempt. All the gears are there and I’ve been through all of them. The clutch began to give up without warning when rolling on at highway speeds so pulled the cover and inner hub to find the outer basket nut had loosened some, hand tight with the lock tab washer still in place. All the fiber plates were broken, the clutch considering it’s condition worked a lot better than it should have, I’m putting it back up with new fibers, new oem springs, new nut and washer, the inner and outer hubs have some grooves which I filed and sanded fairly smooth. While this stuff is out should I check the shift shaft “pawl” and spring? How to do this and what to look for? Shift drum detent plunger and spring? Thanks

Purdy. Where did you find the transparent chain?

Maybe it looks better on the left side. You made it work and beauty is in the eye of the mechanic

The 350 didn’t materialize but a T500 1971 did.

I have one too

I didn’t use the google this time, don’t know why either. thanks and Hello

Looks pretty good, it should come along nicely. Metzler me99 rear and Pirelli mt28 front? The exhaust..?

Yoshimura “Duplex” ?

Gammaboy, I looked up SV650 calipers and they look like 4 pots to me, unless I didn’t differentiate between 4 live pistons and 2 live with the back pads applied by the sliding caliper mount. Thanks for the info

Got it 275mm. Are any 320mm discs known to bolt to the original ‘82 GS wheel?

Anyone know the diameter of the original GS1000S/GS1100E front discs? Thanks

Hello, is there an easy front caliper swap for a ‘82 GS1000SZ that improves braking?

I like the fins, who makes them in carbon fibre?

Hello, I’m looking for the battery size for a T350 twin cylinder Suzuki 1972. I believe it’s a 5amp, but I’m looking for the physical dimensions of the battery itself. Model # would probably work too. Thanks for any info