New member/New project underway

[NorCalSuperF]

Greetings everyone!

My first post here at The GSResources, joined just last week, I was steered to this site by good words from some of my fellow membership over at cb1100f.net.

Just a quick couple of pics of where I'm headed and where I've been.

The new project, a 1980 GS1000.


My last project, an 80'-83' SuperF



Another past favorite build, a 1984 VF750F.


More pics to follow as the Suzuki build continues.
NorCalSuperF

[jed.only]

already had a GSXR swinger? nice starting point.

[NorCalSuperF]

Nope, she was a lowly stocker.

Here's the donor, a 1997 CSXR750 SRAD.

[posplayr]

Baad A$$

Nice look. Welcome aboard; checkout 80GS1000 he also has a mono shocked 1000. He did a trick with 4:2:1 2nd Gen GSXR 1100 exhaust to improve ground clearance.

Got close ups of the monoshock supports and any other bracing?

Pos (me)

[jwhelan65]

wow

First off welcome to our obssession! Very nice start on your build, that Honda is absolutely killer! Looking forward to your GS progress. Keep the picks coming!

[80GS1000]

Oooh, nice!

[Old Colt]

Dang your Honda came out sweet, I am looking forward to what the GS will be.
Very nice work.

Got close ups of the monoshock supports and any other bracing?

It does not look like he has that part done yet due to the block of wood in there.

[pjm204]

damn, you're making me have second thoughts about leaving my 1100 stock.

[Tom MLC]

Looks like you do nice work! Welcome to the GSR. What part of NorCal do you rip up with those beasts? Anywhere near San Jose?

[NorCalSuperF]

Thanks for the positive comments guys!

80GS1000, I read your 70+ page thread last weekend and it took hours to get through that! Anyway, found exactly what I was looking for, Advanced Precision and ordered a 18T-520 .625" offset countershaft sprocket from Randy.

Rear wheel cush drive face machined down .300".


SRAD steering stem upper machined down to 25mm and threaded 25x1 to use the stock GS1000 25x47 tapered roller bearing, bottom will be the GS1000 30x55 tapered.


Number one thing for me when swapping suspension/wheels is true wheel and frame alignment first and foremost with lots of time spent measuring, stringing the wheels, long steel straightedges and then moving the chain/sprockets/brakes to their necessary locations.

The swing arm pivot is completed, I'll snap some pics and post a comment when I have the arm off again to make the shock mounts.

[CB900SS]

Nice to see you posting here NorCal, this site just got a very knowledgeable new member!

[80GS1000]

Thanks for the positive comments guys!

80GS1000, I read your 70+ page thread last weekend and it took hours to get through that! Anyway, found exactly what I was looking for, Advanced Precision and ordered a 18T-520 .625" offset countershaft sprocket from Randy.

Nice work! What's involved with getting that particular swingarm to fit in a GS1000 frame?

[tone]

What's involved with getting that particular swingarm to fit in a GS1000 frame?

Same things as yours mate but the problems are clearance issues between the frame & swingarm brace if you set the swingarm at the stock 12 degrees from level & the fact that the shock wants to sit exactly where the battery should live, no major hassle tbh but something to be aware of

Its a good looking project NorCal but i'm not sure i'd be happy turning down a hollow steering stem by that much, i usually make a new stem to suit or occasionally use the gs stem bushed out to fit the new bottom yoke

cheers tone

[NorCalSuperF]

Greetings tone,

No safety or structural issues with machining down this particular stem, I don't have a "before" pic to compare to so, I'll just try to explain what's going on here.

The stock GSXR SRAD stem dimensions are "roughly" as follows, the top is a 24mm dia. threaded area (approx. 15mm down) and from there is the "key" 25mm dia. straight section going down an additional 15mm or so to where a shoulder spreads the dia. out to the threaded 30mm jam-ring and upper bearing area.

The mods to my stem are as follows, the 25mm dia.x15mm straight area (that is already there) is machined downward an extra 35mm and 25x1mm threads are cut into the top 35mm of that area. The stem's wall thickness is a respectably stout 6mm all the way through the machined area.

I've seen sheared stems on race bikes that have slammed straight into the ground from 6ft. high cartwheels in the air and street bikes that have plowed into solid roadside objects at rediculous speeds, the shear happens right below the upper triple clamp and above the upper bearing and usually the upper or lower triple clamps are split in two (or more) and the fork legs are always completely destroyed. Any impact like this and the bike is generally considered done for good anyway.

80GS1000,

I'll show pics of what was needed to fit the swing arm when I finish the shock mounts. A complete Yoshimura RS-3 stainless 4-2-1 system came with the GXSR donor bike, I'm considering cutting that up to fit this project.

[80GS1000]

What type of racing do you do? I'm impressed with your building skills. How does that CB750 ride, looks fantastic!

That GSXR Yoshimura pipe won't fit at the GS head as the GS exhaust ports have a wider spacing at the head than on the watercooled GSXR. Been down that road with a GSXR 1000 Ti header myself.

If you want a 4-2-1 GSXR header on your GS, I'd suggest using an oil/aircooled GSXR header as the exhaust spacing will be correct.

This header on my bike is a hybrid of some GS1000 exhaust flanges cut off a V&H GS1000 4-1 pipe and then welded onto a Hindle 4-2-1 header for an '89 GSXR 1100. It gives about a 2-3" ground clearance gain and bolted right up at the head.