Upshotknothole

Thanks, I figured the 1127 would be more fun in the 750, but wasn’t sure if there was any real advantage to either engine getting boost. I’m sure I’ll be posting more questions when I start the actual build.

Thank you. 1200 will get the special treatment and the 1100 will start getting prepped to be stuck in the 750 this weekend.

And it immediately turned into talk about GSXF1100 engines and cams. Figured I’d ask in here instead.

I have an 1127 GSXR engine and an early 00s Blandit engine, one is going into an NA 750, the other will eventually get the boost treatment in an 1100 slingshot frame. Which of the two engines should I set aside for the boosted engine? Planning on doing pistons and possibly boring the cylinders with a goal of 250 at the rear with FI. Making the NA engine in the 7/11 fun isn't a problem, trying to figure out which of the two engines is the better candidate for boost is where I'm at now. Is there enough difference between the 1100 and 1200 heads to make a significant difference? Does one have a stronger transmission than the other? I've had a few 1100s, but this is my first 1200 and it's modern by oil cooled standards. Also both engines are basically unknowns to me so I'll be tearing into them a little bit just to see what condition they're in. If I was to guess I'd say both have been sitting for maybe 5-15 years? I think I last fired up that 1100 engine in 2010.

Hindle sells exhausts for slabbies and 88-89 slingshots, but I've gone back and forth with them for 90-92 and until they can get a bike in to test fit the exhaust, they won't sell them. Really want to just tell them to make the down pipes 1/2" longer and keep everything else the same and we'll make them work. Yosh America wants $450US for a custom can, probably looking at over a grand for a full exhaust from anyone that knows what they're doing anymore. Pretty sure the UK has way more slingshot stuff floating around than we do. All of our bikes got totaled or are sitting in the garages of collectors now.

It’s the only paint scheme I’ll keep stock.

Tried fitting my 1200 exhaust tonight. Does not like the fit on a 750. Definitely time for a bigger engine. Couldn’t even get the header on without removing the oil cooler from the mounts. Looked at my 7/11 that has an akro 1200 exhaust and it looks like with a straight oil cooler and spacers for the lower mounts, it’ll clear.

So I was curious and checked the part numbers. The gsxf1100 intake cams were used in everything from the gsxf600s, to gsxr750s, to gsxr1100s. The exhaust cams were only used in the following bikes. Suzuki Motorcycle 1988 GSX-R750L CAM SHAFT - VALVE (MODEL J/K) Suzuki Motorcycle 1989 GSX-R750L CAM SHAFT - VALVE (MODEL J/K) Suzuki Motorcycle 1990 GSX-R750L CAM SHAFT - VALVE (MODEL J/K) Suzuki Motorcycle 1989 KATANA - GSX1100FP CAM SHAFT/VALVE Suzuki Motorcycle 1990 KATANA - GSX1100FP CAM SHAFT/VALVE Suzuki Motorcycle 1991 KATANA - GSX1100FP CAM SHAFT/VALVE Suzuki Motorcycle 1987 GSX-R1100 CAM SHAFT/VALVE Suzuki Motorcycle 1986 GSX-R1100 CAM SHAFT/VALVE Suzuki Motorcycle 1988 GSX-R1100 CAM SHAFT/VALVE Suzuki Motorcycle 1992 KATANA - GSX1100FP CAM SHAFT/VALVE Suzuki Motorcycle 1993 GSX1100F CAM SHAFT/VALVE Suzuki Motorcycle 1993 GSX1100FP CAM SHAFT/VALVE Suzuki Motorcycle 1988 KATANA - GSX1100FP CAM SHAFT/VALVE Sorry, the parts site is calling them Katanas, not me. I also don’t have a gsxf1100 engine and don’t see myself getting one any time soon.

Breaking down a couple of GSXRs and trying to decide what to do with the parts. One engine is going to go into a 750 because I want a second 7/11, and 750 exhausts are impossible to find anymore. I already have a naked 7/11, but I'm kinda enjoying riding bikes with full fairings again. The other engine is eventually going to get the boost treatment. I've got an 1127 GSXR engine, a stock blandit 1200 engine, and a spare dot head that I wouldn't mind swapping onto either of them. Whichever one goes into the 750 frame will also be getting a set of RS38s and a full yosh system for a blandit. Kinda tempted to stick the 1100 in the 750 and save the blandit for the boost engine, but which one will be more work in the long run and which one will be cheaper for the biggest smiles when I do build a turbo bike? I'll post up some photos when I go out to the garage later and might actually do a build thread for this one. This was the bike before I took it on about a 1500 mile road trip and a mate rear ended me and broke my exhaust.

Yeah, even on Eblag there isn't much anymore for these bikes here. Half the time the best option is just to find a cheap project bike and pick it of parts.

Where are you at in the states? I'm constantly looking for parts on the west coast. Usually a couple of GSXR 750 engines on craigslist.

I've had both on 1100s and was actually thinking about switching one of my bikes back to hydraulic, only because we can't lane split where I live now and the clutch gets a little tiresome in stop and go traffic. Otherwise I tend to prefer the feel and look of a cable clutch. I think it all really just boils down to personal preference.

This!

Are you sure you have the right push rod for the clutch behind the sprocket cover? I can't remember the length off the top of my head for the hydraulics, but if you search on here you'll find it. Does the clutch lever feel like it's engaging at the beginning of the pull or only at the end? Can't tell if the lever is being held in by the wall in that photo, but that lever looks way too close to the bar.

I know they'll fit, but curious if they fit to the stock exhaust hanger on a 750 or 1100? I've got a full blandit 1200 Akro system on my 7/11, but the tail was swapped before the exhaust was mounted. The reason I ask is slingshot exhausts are getting near impossible to find anymore in the states, but bandit exhausts are still common and cheap

I’ll try hitting up Yosh, as well as looking into a new sleeve. Last night I went to pull it off the bike, and the mid pipe is so kinked where it slides over the header, that I doubt I’m going to get it apart without pulling the whole exhaust. I guess I know what I’m doing this weekend.

Friend that hit me is going to see about getting the mid pipe straightened at an exhaust shop. Might have a lead on a sleeve.

Well, that was a short run with this exhaust. On the last day of a multi day trip up the west coast of the US, a mate rear ended me with his GSXR at a stop sign. I suspect I can get another canister for it, but the mid pipe got a nice kink in it too. The last couple of hundred miles home were loud and the bike ran like absolute shit on the bottom end.

Depends on the jet kit, dynojet plugs them, factory pro doesn't.

Took it out for a ride, still bogging, but it feels like it's moved lower in the power band now. Made the bottom end even more gutless. What's annoying is I have a spare set of RS38s sitting on a shelf right now that part of me really wants to try putting on, but I know they're way too big for this engine and will make it horrible for riding around town...though I may still try one day while waiting on RS36s.

Yup, a new factory pro jet kit and stock emulsion tubes and I'm already looking at almost half the cost of a set of RS carbs. Some of the rubber bits were also showing their age and the carbs could use a rebuild kit. Easier to just throw new carbs on. Plus my first slingshot had them when I got it and I always loved the way the top end hit on that bike.

Go introduce yourself in the general section, and post up some photos of the bike. The hoses between 1&2 and 3&4 are vent lines.

The needles are already lowered all the way or close to it. This whole jet kit looks pretty old and tired, if I had time I’d throw a factory pro kit in there and replace the emulsion tubes with stock, but leaving for a road trip next week. I think I’m also going to switch to RS36s after I get back and not bother with these carbs anymore.

Went through the carbs, the tips of a couple of the needles were slightly bent, the dynojet needles are really thin at the tips, straightened them a little, emulsion tubes look a little oval, but the float bowls were really clean, just a tiny bit of dirt in the bottoms. Gonna put in fuel filters, ditch the aftermarket single outlet petcock and go back to a dual outlet stock unit. A couple of the single pod filters were starting to come apart, putting dual K&Ns on. Replaced all the plugs, I think 2 or 3 of the caps, and one of the coils as the leads on the 2-3 coil had been trimmed to the point that it was stretched tight over the breather cover going to #2. Whichever previous owner of this bike used anti-seize on the coil screws, I could fucking kiss them. I was expecting to be cussing all evening trying to get those horribly soft screws out. Should have it back together tomorrow and hopefully it runs a little better. I haven’t dealt with CVs in a long time and I don’t miss them. I think this bike is getting RS36s later this year.

3 out of 4 leads pulled right off the spark plug caps, and the plugs are far from uniform. Gonna swap out the leads, caps, and plugs.