Search Results (Searched for: gs swing arm)
GS1100/Katana swingarm was created by 750 R1
07 Jun 2022 16:21
Does anyone know if the Katana alloy swingarm has offset shock mounts ? I have the swingarm mounted correctly in the frame, and with shocks mounted to the swingarm, the sprocket/left hand side shock sits out around 10-12mm wider then the right side shock, is this normal ? Its mounted in my 1982 GPZ750 frame. I won't be able to get back to the bike for a week so I thought I would ask here before measuring everything accurately, I ran out of time yesterday...
Thanks.
Thanks.
Replied by Wookie58 on topic And finally, Wookie's 82 begins !
07 Jun 2022 13:39
So managed to get a few hours on the bike over the last couple of days (I had taken a couple of days off to sort some things out) it has certainly been a day of mixed emotions. When I dropped the stem off on Saturday I was talking to the guy as he does chassis mods to classic strokes race bikes (check out his website NK Racing in Stoney Stanton UK) and he could not stress enough the importance of getting the bottom mount in the right location for the monoshock conversion (pivot point in relation to swing arm pivot, dog bone angle & linkage angle) as getting it badly wrong can result in the "rising rate" becoming a "reducing rate"
. First set of brackets have gone in the scrap pie but the second set seem to have hit the sweet spot, so I got them tacked in place and then *$~x?? The welder started playing up (the insulator for the gas shroud has disintegrated) so that was that for now
Well.. we are alive boys. Everything works.. horn, lights.. brake lights.. everything. One of the brown with white spot wires needed to be filpped to the other side. A year ago when I was in a hurry to order all the cables... tach, clutch throttle..etc. I mistakingly ordered a longer clutch and tach... of course! The new shorter ones will be here thursday. So trying to let clutch cable in and out was a pain in the balls as it was just too long and effected the clutch switch and I really dont have the patience to play with it. Boy.. do I miss my buddy Jeff. He was in my backyard and I would sit in his office and order parts for all my builds .. He knew exactly what I needed. You would think I would remember after all these years.(shorter cables).. Old age is kicking in.. LOL. I currently have the clutch switch out as I get all the bodywork back from the paint shop. ..end of next week,, including matching clutch and brake handles...I will install the new clutch cable with what I have cause I need to hear this baby run. We never got into that on this post ... As you know electrical is not my thing... But everything else is.. Engine is stock 1000 and completely gone through... cases split and all new everything. GS1100E swingarm..Mikuni 34 flatslides .all new electrical, Dyna 2000 ,gauges, controls I powder coated the frame and battery box, triple trees and swingarm and yes I did have Dennis Murray make me one X pipe... long story about that... (kind of surprised I did not get asked about it from the pictures I posted)..But I cannot thank you guys enough for the help on the electrical... means the world to me as I try to get this one finished. While I wait for parts I was messing with my other bike. Looks like I have to order a new oddysey battery. The last one I got from FBG and I need a new one( i take care of my batterys.. winter time inside on a trickle.. etc and this one lasted six years).. But dam have they gone up in price.. Pictures soon... Thanks again, Joe
Replied by slayer61 on topic Kiwi GPZ
07 Jun 2022 07:47
Fellas, there is more than 1 way to skin a cat! One of my mentors designed and built stationary chain tensioners.... when needed the tensioner would take up the slack. When not needed the chain came up off the tensioner. See below pic right behind countershaft sprocket.Larriken something you may want to bear in mind when setting your chain tension - a friend had a GSXR /Bandit motor in a Harris Magnum that was made for a KZ motor, because of the increased distance from the gearbox sprocket to the swinging arm pivot he had to run the chain a little looser than normal to avoid breaking it !
Replied by Wookie58 on topic Kiwi GPZ
07 Jun 2022 02:26I would suggest taking the spring off and check the tension through the entire travel of the swingarm (I believe the longest point is when the swingarm is level)Good call. I had been pondering that. The distance from the front to rear sprocket is the same as my 98 Bandit 1200 but the GPZ has an extra 30mm from swingarm pivot to front sprocket. I guess if you hit a massive bump and compress the suspension you would tighten the chain. There is a lot of clearance under the swingarm but I would hate to find out the hard way! Will back it off once I get the beastie going and see how it all goes.Larriken something you may want to bear in mind when setting your chain tension - a friend had a GSXR /Bandit motor in a Harris Magnum that was made for a KZ motor, because of the increased distance from the gearbox sprocket to the swinging arm pivot he had to run the chain a little looser than normal to avoid breaking it !
Replied by larriken on topic Kiwi GPZ
07 Jun 2022 01:31
Good call. I had been pondering that. The distance from the front to rear sprocket is the same as my 98 Bandit 1200 but the GPZ has an extra 30mm from swingarm pivot to front sprocket. I guess if you hit a massive bump and compress the suspension you would tighten the chain. There is a lot of clearance under the swingarm but I would hate to find out the hard way! Will back it off once I get the beastie going and see how it all goes.Larriken something you may want to bear in mind when setting your chain tension - a friend had a GSXR /Bandit motor in a Harris Magnum that was made for a KZ motor, because of the increased distance from the gearbox sprocket to the swinging arm pivot he had to run the chain a little looser than normal to avoid breaking it !
Replied by Wookie58 on topic Kiwi GPZ
07 Jun 2022 00:38
Larriken something you may want to bear in mind when setting your chain tension - a friend had a GSXR /Bandit motor in a Harris Magnum that was made for a KZ motor, because of the increased distance from the gearbox sprocket to the swinging arm pivot he had to run the chain a little looser than normal to avoid breaking it !
Replied by Wookie58 on topic And finally, Wookie's 82 begins !
05 Jun 2022 16:45HaHa ! Yea it would take more than a few shims to make up 75mm your custom triples are real nice but my aim is to use as many OE parts as possible carefully selected from a range of bikes, there are a couple of reasons for this. First is cost, (my complete back end including wheel, calliper and sprocket carrier have cost £250 so far, if I factor in another £200 for bearings and refurb etc I should be at about £450 - the starting price for a good pair of rear shocks !)Getting the balance of swingarm angle and back end height was a bit tricky with the 750 swingarm. I think I ended up with 10.5-11 degrees and had to compensate for the extra height at the front (zrx forks and custom triples made that a bit easier).
I misread your earlier post. I thought you wrote that the forks don't need extending - I was wondering where the hell you were getting the 75mm from!
The second reason is that I want the finished bike to look like " it could have always been that way" at a glance. I'm not going for "hot rod" with this build and ultimately I'm not a good enough rider to benefit from a £5k front end !!
Replied by Wookie58 on topic And finally, Wookie's 82 begins !
05 Jun 2022 14:37 - 05 Jun 2022 14:38Unloaded the J forks are 815mm and the K are 840mm - The ZX9 forks are 755mm so with extension will be 830mm - the radius of the wheel is 31mm smaller so ultimately I should be 16mm lower than a J - I can do what I want with the rear as I haven’t made the mount yet and it will have a degree of adjustment- I need to watch the swing arm angle as Davido had an issue with his chain eating the swing armThat should be plenty - although I missed where you're getting the 75mm from? Do you know if the back end sits up higher with the GSXR linkage? Mine is up a bit with a GSXR 750 swingarm due to the length but I'm not using the GSXR shock or linkage.

That should be plenty - although I missed where you're getting the 75mm from? Do you know if the back end sits up higher with the GSXR linkage? Mine is up a bit with a GSXR 750 swingarm due to the length but I'm not using the GSXR shock or linkage.
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