Author Topic: The Quest for Brakes and Suspension: GSX-R Treats (Read 58292 times)

Retro Rocket · « **Reply #125 on:** March 30, 2014, 02:39:38 PM »

Quote from: sethdhawkins on March 30, 2014, 02:29:07 PM

Quote from: Retro Rocket on March 30, 2014, 02:24:36 PM
Hi Seth, the 750 has around 3.7 inches of trail, most modern sports bikes are closer to 4 inches }GSXR1000 (2005-2006) - rake = 23.45 degrees trail = 96mm(2007-2008) 23.8 degrees 98mm , 100mm + 4 inches so both numbers are in the 3.9?, just a tad under 4 inches The 2012 ZX10 Kawasaki has even more trail 107mm or just over 4 inches}, trail is also relative to rake, 4 inches of trail on a 25 degree rake will feel different and react differently to 4 inches of trail on a 27 or 23 degree rake. Our bikes like a trail of closer to 4 inches giving a little more stability at the front and reducing the chance of having a tank slapper, of course bad bearings and other things can cause a tank slapper but its primarily trail related, ask member Bwaller....

I knew you'd jump in and give me some more precise information! Like I said, I was using that simple trail calculator, so there wasn't a ton of accuracy, just a ballpark for me. I like the part in the sportbike article above that stated that an experience road racer can detect the difference in 1mm in trail!

Yeah, thats crazy accurate, i can feel reasonable changes but 1 mm, thats surgeon territory....

Thats why they ride so well i imagine, being able to set up a bike that accurately is amazing...

sethdhawkins · « **Reply #126 on:** April 21, 2014, 05:21:51 PM »

All the tins are in primer. My buddy has had some personal issues over the last month, so my paint is taking longer than anticipated.

sethdhawkins · « **Reply #127 on:** April 21, 2014, 05:24:41 PM »

I'm on a holding pattern on a few key pieces to the bike, so I've been doing a few things while waiting. Replaced the plugs...old ones looked spot on. I'll be replacing the clutch with the cyclex clutch kit. Tonight, I'm building a seat with another friend. Pics to follow!

SOHC4 Cafe Racer Fan · « **Reply #128 on:** April 21, 2014, 06:10:10 PM »

Quote from: sethdhawkins on April 21, 2014, 05:21:51 PM

All the tins are in primer. My buddy has had some personal issues over the last month, so my paint is taking longer than anticipated.

Par for the course with most painters.

sethdhawkins · « **Reply #129 on:** April 22, 2014, 08:03:14 AM »

Seat photos. I don't think I could ever sew like this.

sethdhawkins · « **Reply #130 on:** April 22, 2014, 08:28:12 AM »

Quote from: calj737 on April 22, 2014, 08:22:54 AM

The trick to getting those results when sewing is: gotta have a pencil stashed behind your ear

Or, a beer to aim by!

NobleHops · « **Reply #131 on:** April 22, 2014, 09:33:39 AM »

Love the custom work Seth, great job.

snowman · « **Reply #132 on:** April 22, 2014, 06:05:41 PM »

Great work, I'm in

Sent from my iPad using Tapatalk

sethdhawkins · « **Reply #133 on:** April 23, 2014, 05:09:00 AM »

Thanks, guys! I installed a cycle x clutch kit yesterday and modified the clutch basket a la Hondaman. Hope my clutch is sleep free now. I have a '72 motor, and went with 7 friction plates and 6 ceramic plates, and left the larger friction plate out. Everything went together smoothly, and clutch action appears unchanged. The pressure plate did appear to have slight warping to it, but I ran with it. I though about chucking it in the lathe and skimming the surface, but with my luck, I'd screw it up and be left with nothing to use. I might pickup a used basket and pressure plate to test on. Still waiting on a few things....so close!

sethdhawkins · « **Reply #134 on:** April 24, 2014, 12:05:17 PM »

So, if you're tempted to buy a cheap cnc brake reservoir on ebay like this from china:

Replace the brake hose that comes with it, as it is not brake fluid compatible :-/ The brake fluid weeps through and drips down on to things you like. I ordered a clear hose from brembo, but I'm not too excited about bleeding the brakes again.

sethdhawkins · « **Reply #135 on:** April 25, 2014, 04:29:43 PM »

My oil tank is here!!!!! Mocked it up today and routed all the lines. I hope to button up some more stuff. I can't wait to get my tins and go ride.

sethdhawkins · « **Reply #136 on:** April 26, 2014, 04:00:41 PM »

Oil tank installed and plumbed.

Seat almost finished.

SOHC4 Cafe Racer Fan · « **Reply #137 on:** April 26, 2014, 05:26:01 PM »

Getting antsy for you. Let us know how those Mikuni RS34s run.

sethdhawkins · « **Reply #138 on:** April 26, 2014, 05:30:21 PM »

I think they'd run great with a bit more displacement

I think the engine is a tad over carb'd. I changed the plugs to platinums, and they looked spot on (already knew that with the afr gauge). It's really all in the off the line, and may all be in the accelerator pump. I'm mounting the exhaust as I type...and drinking some makers

Terry in Australia · « **Reply #139 on:** April 26, 2014, 05:45:10 PM »

Looking good Seth, I'm fascinated with your front end conversion, I've got some Ducati USD forks here along with some late model Yamaha 17" wheels and I'm daydreaming about a similar project. I've read your posts that the offset of the stock triples doesn't appear to be a major issue, how much left to right steering "lock" have you lost, if any? I.e., how far can you turn your handlebars before the forks hit your tank? Anyway, excellent work so far, well done. Cheers, Terry.

sethdhawkins · « **Reply #140 on:** April 26, 2014, 05:49:12 PM »

Terry,

I'd put the "lock to lock" at about the same as a modern sport bike. It's pretty appalling going from a vintage platform. I'm ok with it, but I can imagine parking lot scenarios being a bit annoying.

Seth

Terry in Australia · « **Reply #141 on:** April 26, 2014, 07:07:44 PM »

Thanks Seth, I might have to make myself some custom triples if mine ever gets past the daydream stage. Cheers, Terry.

sethdhawkins · « **Reply #142 on:** April 27, 2014, 10:50:00 AM »

Mounted the exhaust last night and fired her up. What a glorious sound

There appear to be no oil leaks anywhere, which was a relief, considering the adapter plate, the oil cooler, new oil tank, and my remote oil drain.

sethdhawkins · « **Reply #143 on:** April 27, 2014, 04:08:16 PM »

I went by the shop this afternoon and set all the rebound and dampening to "stock". I'll rebuild and make the necessary adjustments to the internals next season.