92 GSXR 1127 engine into 750F Katana, [sick]

[trippivot]

No I did not mean CDI.

T.P.I. OR P.E.I. is what Suzuki Gs and first 3 generation GSXR use

Pointless Electronic Ignition - Transistorized Pointless Ignition- brain boxes that control a pair of collapsing field style coils - which is what GS - GSXR ignition systems employ.

there is no capacitor discharge triggering a rising field style coil which is installed on a kick start battery-less self energized ignition system like a KX YZ RM .

people confuse what they have and mix match parts that sort of work but never quite right - oh it will run but not right

the term is sort of universal but there are very distinct differences.

brain box, igniter, blah blah --- transistors replaced the mechanical breaker points system . and it is NOT Digital like the RE-5 and Fuel Injected bikes with 3D timing maps

[Buffalo Bill]

Anyway, this gsxr seat cowl came in the mail today. I adapted it to my bike and shaped the seat foam for better track usage.
I'm now using a lift, because the center stand did not clear the 1100 exhaust.

[Charlie G]

Is that a spare seat? I need to make a lift for my 750, as it's center stand is gone because of the header.

[Buffalo Bill]

Yes that seat came with the bike. I bought another to mod back in 2011 and kept the 1st unmolested.
That modded seat was so successful I decided to keep it as is, and do this mod with the 1st seat.
You can't make a bike lift for the price of this one. Venom bike lift-ebay

[Charlie G]

Yes that seat came with the bike. I bought another to mod back in 2011 and kept the 1st unmolested.
That modded seat was so successful I decided to keep it as is, and do this mod with the 1st seat.
You can't make a bike lift for the price of this one. Venom bike lift-ebay

I put in a bid. We'll see....

[Buffalo Bill]

Bigger back wheel and tire too

Ok, I uploaded a 88-92? gsxr 5.5 wheel with 190/50 Shinko into my 1990 Katana swingarm.

Measured 9" across at first and I needed another half inch to get the caliper in there, so I pushed it out to 10.5".


OK This Will Work!


The 190 is actually 195 wide, with 7mm clearance on the right.


Only 4mm clearance on the left


I want to get a 180/55 in there, 170/60 acceptable.
The brake arm will need to be kinked out 5-10mm, and a longer axle bolt would be a good idea too.

[Buffalo Bill]

Fitting the body panels on and adjusting new fitting issues.
The taller block raised the carbs, that raised the airbox, that pushes up on the tank.
See the gap between the side panel and tank?
Was able to get the shark gills to fit, had to cut some away from the lower side.

[Charlie G]

It good looks from where I sit. It would be painful to have to wait till spring to really ride it. I'll have my lift next week. Thanks.

cg

[Buffalo Bill]

It is so painful waiting for spring.
Southerners may gloat now, but not May through October.

[Guest]

Should consider a first gen busa front end for that, my sons 90 600 has one on it. Looks really nice with it, straight spoke wheel will match your rear.

[Buffalo Bill]

Man, what a tedious process it is to tune carbs, the gas stench is so depressing.
Anyway, on this project I got the idle down to normal range, but below 2000 it wants to die out.
I have some more things to try, and check out.

[Buffalo Bill]

Making progress on the carbs, the fact is they were just overdue for rebuild, besides re-jeting them for the 1127.
Checked the compression today: #2 cylinder only shows 145psi, the others all show 170-180psi. Kinda at the limit of acceptable difference.
Engine was tested right after running so it was still warm and wet.

[Charlie G]

: #2 cylinder only shows 145psi, the others all show 170-180psi. Kinda at the limit of acceptable difference.

Valve adjustment?

[Buffalo Bill]

Well, I did that last summer, 3 new shims for the #2 valves.
I was hoping this would be a pop-in engine swap , but a performance head and valve job is not so pricey.
Glad I did not start this last summer when I was riding track days.
Whatever, long time before next summer.

[Buffalo Bill]

Making room for wide tires on the back

Ok, I'm working on widening the swingarm.
This is a killer method pioneered by Kreylin, one of the best over on katriders.com_Fitment of a wider tire.

This is Krey's pic from his stickey


This is a swingarm I just got on ebay


This is my marks for the cuts, will be doing that tomorrow, (kinda snowed in here for a couple days)