GSXR1100 (1991/1992) Fork upgrade

[FJNovaScotia]

Pictures of the front end work this weekend:

This is the FJ stem pressed into the GSXR1100 lower triple:




This may be overkill but below are pictures of the FJ top triple compared against the GSXR1100 top triple:

[movenon]

Keep the pic's and info coming . Are the forks shorter/longer or same length as the FJ forks ?

Giantkiller: I feel your pain.... Let me know if you find the answer. I keep saying "just this last one thing". It might help when riding season gets here...
George

[Firehawk068]

Not to stray off topic, but just a piece of advice...........Very soon, you will want to shorten your mid-pipe, and move the muffler can forward enough to put a strap around it, and use that to hang it from the rear footpeg bracket..........Otherwise, it will exit the motorcycle when you least expect it to............Most likely during a spirited ride in a canyon, where it will go tumbling over the edge, never to be found again.........Despite Andy F's best efforts to locate it.........DAMHIK.

Nice job on the suspension upgrades though!

[bcguide]

Need more pictures
Have you finished this yet?
Scott

[FJNovaScotia]

Pictures coming soon,   I finished rebuilding the front forks (needed to building lots of special tools for the USD forks!), modifying the rear shock and painting the upper tripple tree and rims.

[FJNovaScotia]

Just a bunch of pics....new bearings in the rims, the ignition is the GSXR one grafted to the fj wiring harness and the cbr f3 shock is on as well...next up, mounting rear fork reservoir to bike, building 130MM dogbones, brake installation.

USD Fork rebuild:



Rims refinished: 








Upper triple refinished:



Pics of Bike still being put together:

[movenon]

Here is what I did.




If I like the shock after riding it a while I will think about installing a longer air line and mount it up where the FJ shock adjuster was.
George

[FJNovaScotia]

Never thought about mounting to the brake arm.  Good idea!     But George...why is your bike so clean???

[movenon]

Never thought about mounting to the brake arm.  Good idea!     But George...why is your bike so clean???

Same problem you have, to *(^*#^*#@  cold to ride it It's been on the center stand for maint. since last January. I was just going to put new tires on and clean it up a bit and somehow it got out way of control.     I need to do some engine work but that's going to put on hold until next winter. It will just have to smoke. I am trying to get it ready for the WCR.

I tried the swing arm mount but wasn't happy with the exhaust pipe to hose clearance, engineered some brackets and wasn't happy with that. Then it dawned on me that there was no reason not to mount it on the brake stay/tension rod. Also the brake hose was a new hose (NOS) off a GSXR 750 and was a bit short plus the fitting's were not at the best angles, and as it turned out it fit a lot better by running it up the stay also. Anyhow that's where it is for now.

George

[Derek Young]

But George...why is your bike so clean???

Disgusting!

Derek

[FJNovaScotia]

Hey George,


What settings are you using on the F3?

[movenon]

Hey George,


What settings are you using on the F3?

Right now I have it on 4 I think. I haven't had it out yet to check everything but right now the static sag is within spec.. This sounds simple but make sure you are using the correct reference point for setting the number... It's not the casting mark on the rear or front of the shock.  Look at it from the side and peek though the "windows" and look at the ramp as you adjust it, count the notch's.
George

[FJNovaScotia]

What is your sag without a rider?   I have my shock set to the top of the adjustment ramp and it feels really soft and though I haven't measured yet too much sag.

[movenon]

What is your sag without a rider?   I have my shock set to the top of the adjustment ramp and it feels really soft and though I haven't measured yet too much sag.

Our projects are about neck and neck here. here is a pretty good video to watch on setting sag.

setting suspension sag

My top out is close to 10mm. I need to get a helper to get accurate measurements on the total sag but just sitting on it as close as I can eye ball it settles about an inch or possably a little more. Just for details I weigh 217 lb. at present (working on that problem also ).

All the numbers aside I need to just get it out on the road and get a "butt" feel for whats going on. My old FJ shock felt stiff and clunky for the lack of another term (POS) the F4i feels a lot better. While looking at the video notice the softness and rate of return on the bike he is using.

My neighbor just took delivery on a new custom ZX 14R. I should go over and do a bounce test on his machine . He is a nice guy into having the best and the fastest
I just smile and make it a point to sit out front on my patio area with a cup of coffee every morning waving him good bye as he trod's off to work every morning ......
I keep tell him to get an old FJ, retire and be happy.  "Money or your life" I guess. You trade one for the other. Less I digress....

He did at one time own an FJ 1200 and still looks out the corner of his eye longing at mine......... Especially the comfortable seat.
George

[FJNovaScotia]

I'll take a look at the video for sure...thanks!

Another question, how long did you make your new dogbones?   Mine are 130MM from center to center.