icprey

While you know I've been battling the carb demons myself, and freaked when the same cylinder went again and flooded after double checking everything and add a loose clutch starter bolt reeking havoc, pulling the plug to clear the cylinder shows I've gone and lost spark again on Cyl 1 and maybe more, time I get to checking it. If you think about the way you express your results now, it works on one bike but not on this one, well maybe take the carbs out of the equation. Look elsewhere. But I feel for you, it's your call. I've been there before and walked away dejected. I also met the new owner some time later who chuckled as he told me it was a ground to the firewall I had missed (car) and a 5 cent connector fixed it!

Lachie04 great link! Don't know if that is well shared and known, but I had never came by them. Very curious about what will happen next here. No popcorn emoji but let's see how this drama unfolds

Here is an old article from Cycle Canada on a '88 Short Stroke exhaust set-up using stock airbox and filter. You have a set-up that was proven at the time and track tested. This is a Canadian model so you might want to check the differences if any from Aus. I have that manual in the garage if ever you need me to check. You know I too am going through some carb moments right now, but I feel at times I am struggling to get the carbs back perfect, meaning I have not completely disassembled every single piece and replaced, but rather cleaned the jets and passages hoping the rest is working ok. Anyways for a free breathing exhaust all they needed was a 115 main up from 112.5 and lowered the needle one notch (did 36mm have adj needles like you show previously) to lean it out some and stretched the diaphram springs 6mm. These were tuning recommendations from Yosh for free flow exhaust with stock carbs and filter. Pretty small changes from stock to see the issues you felt when back at stock, but as you said it seems the 748 reacts more sensitive. Only ever had one 748 in my youth (a few 749's) and stepping down 2-3 gears always solved everything. I don't remember caring about driveability...hehe. Oh how times have changed. Have a few 748's lying around here for the last 20+yrs as well, always wondering what do to with (had a 815 short-long combo in mind). Hoping the above can lock you into a setting and stick to fixing the issue happening with a known setting. Also just be sure you are not using 1200 36mm carbs as they are internally different and won't react to GSXR settings. What is your carb stamp on the body side?

Good to know. Before I wonder why it won't fit the swingarm. The conversation has made me want to find a staight spoke front now!

Good to know, thx. We never got those here in Canada.

I've got two 7/12's kicking my butt right now with a variety of carb choices. I've been coming in dejected and eyeing Brand Spanking New Mikuni's, but remain determined to use what I have and figure this out. If Sept rolls around and I am still sucking my thumb, I might crack!!! Keep us informed. Your plight may help mine or someone else's.

I believe in 1995 when Suzuki tried to lighten the bikes up some 750 and 1100 they went to a lighter weight straight spoke design. I've got a rear hanging around in the shed somewhere for the last 20yrs and it is a 5.5 not a 6.0 like the SRAD. True that the first water cooled of 92-94 had the heavier curved models.

Hope your getting this figured out. Just know you are not alone. I believe there to be plenty of us trying to get 30yr old stuff running right! I am so sick of pulling the carbs, I'm on Carb vacation right now

I don't think there is anything special about the frame. The riveted plate could speak to a certain past. Here in Canada a bike that has a rebuilt title would get a plate similar to that to signify it has been reviewed and considered legal again for use. This could be something of that nature, but I never saw that plate on a stock frame before and it really looks like it was added after by someone wanting it to stay there. Maybe someone recognizes it from their region.

Dyna 2000 is $320USD. Not sure what you paid for that, but I'd sell it to someone building a W/C special and go the Dyna route. If not and you really want a PowerPak I know of a used one that is for sale. I believe the Dyna to be more versatile and what most people step to. Not sure what you are building but most PowerPak's ended up selling because back in the day replacement boxes were crazy expensive in comparison.

My knowledge is more GSXR but here is a 36mm (oval) vs 38mm (round) comparison on the intake side.

I'm eyeballing this photo probably an ocean's away, but I think those are 36mm vs 38mm. Quick change bowls and the hose up the side scream 38mm. Both oval on the intake side?

Ran out and snapped these for you. Sorry for the upside down. The joys of working from home!! 91 750.

Hey Nok, Brian here, the guy with the XC200 from QC. It sure looks to me like a 91. The way those covers over the oil cooler are there and the way the mid section line is cut speaks to the 91 bodystyle. The water-cooled models seem to re-use the existing stock lines, but it does not garantee someone in the 90s (Northstar, AirTech, HotBodies, etc....is there no company stamp?) made a straighforward design no cooler cover, one piece lowers for the water cooled models??? Not sure it helps as this is the other way around, but I have a 750 water cooled birdcage holding a 91 stock fairing with the glass removed and a racing plate covering. So I'm wondering if your fairing is 750 and simply not meshing with your 1100 birdcage. Hoping a more definitive answer makes it way to you.

NICE! Airbox portion underneath filled in? I'm waiting on the magnetic test too. Hoping for you it is an old endurance race tank. I can see with the carb side covers this build will turn out racy. Good luck.