Loud

Hi Tab, Just wanted to check and see how you went with your new springs? I've just placed an order with Nitron (couldn't spring for an Ohlins!) and I'd like to try and get somewhere near the right spring to begin with - although they will swap undamaged springs for free (postage to and from the UK would add up though). A bit of additional information that I found interesting, Nitron stated that the valving for the 1100 and 750 was "not too dissimilar" and with the new link "will be fine regardless of the spring rate". Excellent Back on topic - I ended up buying a '91 750 engine from Germany. Despite being a long stroke version of the 750 it appears it actually revs as high as the short stroke 750 due to the later pattern con-rods and lighter pistons. Instead of press-in bolts with nuts that earlier bikes featured the newer rods are basically the same as current bikes, meaning rod bolts screw in to threads in the con rod itself. As a bonus I get a head with a more efficient combustion chamber than previous models as well as a shiim style head with independent cam followers. The down side is that I can't run too aggressive a cam for fear of the shims "tiddly-wink-ing" out, although cams aren't readily available for this comparatively rare head anyway. P.S. Thanks for the ribbing, one and all

Sounds like you've made me an offer I can't refuse.

Tab that's brilliant, that's going to help save me some money from a mistake I would have made upon ordering the new shock. Thank you. I guess I do need to be a bit rude and ask how much you weigh though! I'm ~90kg so it would help determine if your spring experience is relevant to someone of my weight too HDT boy the pictures from your build have been very helpful - I've saved them with some others in order to show the welder what I need to have done to the frame. I was pretty close to abandoning this forum given the initial droll response, it's great to know that there is help and worthwhile information from newer members such as yourselves who haven't built huge post counts from being... well, you know I'm scouring Gumtree (our version of Craigslist) and Eblag for engine parts, to see what comes up that might be useful for the rebuild. I'm kinda hoping that a modded 750 engine comes up, for a strip/inspection/reassembly. I'll let you know how I get on!

Great info again thanks guys. I'll be hunting around for a rear shock made for my weight and to suit the bike. I used a Nitron for my last build, I've never used an Ohlins and frankly couldn't justify the cost for my riding level. I'll ask them to spring it for the 1100 by the sounds of things - was the dampening suitable Tab or would you suggest I look at softening that up too? HDT I've seen plenty of pictures of bracing around the rear of the motor but I can't rightly picture what you mean by "closing up the cast sections"? I haven't yet stripped the bike to have a close look at the frame, any suggestions on what to look for? I'm still tossing up whether to find a low km block or rebuild this one. I've got a sneaky suspicion that it'll need a re-bore and that means Wiseco pistons and then it makes sense to get new rods, which all starts adding up. Then there's the benefit of newer ancillaries like the starter motor, alternator, etc.

Hey fellow GSXR noob. You're starting yours, I'm starting mine, let's have a race?

Worthwhile posts, thank you gentlemen. Tab, looks like the sort of engine I'd love, but like you it'd be one that would have to evolve over time. I'll start having a look around to see what's available but it sounds like a '90ish head is a good starting point. And I love the knee-dragging photos! Did you make that rear engine brace? HDT I think I've got the makings of a good suspension setup and I've got some pretty good pictures to provide to a reputable TIG welder. As I'm not racing I'm not going to go too overboard, no double skinning for me! What sort of compression are you running?

Did you use the original airbox for the motor? One of the things that I love about the bike is being able to see the carbies, I've read that the short stroke motor can develop flat spots that aren't easily tuned out if the airbox is removed.

...Tough crowd. I've had the bike for about two weeks and can't count how many hours I've spent researching my project - on this forum and others.. Truth is that it was mostly on another as I didn't come across this site until it was suggested to me. Anyhow, so far this devoted search has lead me to purchase: CBR929 triple clamps for the added rake they'll allow (I learned that the hard way - I bought '93 GSXR triple clamps first) TL1000S forks (again the hard way, see above) KTM SuperDuke 990 wheels with 320mm discs front (reason for the TL1000S forks!) A GSXR1100 link to raise the rear - also a reason for (eventually) choosing the CBR929/TL1000S combo over the shorter Hayabusa and TL1000R forks, to help me correct the rake '86 GSXR750 swing arm, due to it being 25mm longer like the '85 Yoshi race bikes CBR900 swing arm, to rob of its brace and TIG to the '86 unit Nissin calipers from a Bandit 1200S, as I didn't think the 6 pots really suited the look I'm after There's a specific Airtech fairing kit and a Yoshi exhaust on the near-future list, I even have the general plan for the colour scheme. It's not like I'm wasting people's time, I've built bikes. Here's a 2-stroker I finished recently (forum rules say this is cool to post) and it additionally has a Suzuki engine (although not the Suzuki badging required, but, again, it's a 2 stroker and the rules seem to indicate it's okay to post), just in case you missed it in my first post on the forum: You might catch it in Fast Bikes magazine soon. I tend to commend sources of help (when I receive it) as I recently did when it won Best European at Perth's Motorcycle and Scooter Show (before you ask it was entered as a motorcycle, not a scooter ) So, in summary, in the many, many hours that I've spent looking around, I've seen a million threads about 7/11s and only a small number on 750s - these were being rebuilt to factory spec. If you feel like sharing your forum knowledge and pointing me in the direction of some memorable 750 engine builds, that'd be ace - I'll happily read over them from there Thanks for any help you might be able to provide.

Forum rules: 6. There is custom code built into the site that converts certain words typed into a different word or phrase. Do not adjust your television screens, these replacement words are for your own safety. GSXR600. What. And I've got no issue with auto V8s - Some guys just like to have a hand free when they're driving, no judgement here! So, captain chaos, what's your best 750 combo idea? I'm not looking to spend mega bucks, I just want to spend money on the right things. If it's cheaper and easier to make a Slingshot/Katana/'85 GSXR750 go faster then I'm all ears. But if you're keen to banter some more then I'm happy to see what you've got - time is on my side as of late and I could do with the laughs.

Gas turbines are soooo sixteen years ago.

Ha, I see what you did there If it's of any consequence, the four year old water cooled Suzuki GSXR of six hundred ccs is for sale, to fund the slabbie. So you won't hear any more talk about it from me!! Guys, I realise that the 1100 is the popular choice. Here in Australia the majority of people chug around on late model 1000s and drive automatic V8s, while I'm taking my bikes and cars through the gears and to the limiter and having a fun time of it. Let's say that I kept the original bottom end that has been around the clock. A rebuild is going to need new bearings, presumably still readily available. Do the conrods fail around this time, or would they be right to go after a balance and shotpeen? What about pistons, are they horrendously expensive (if the block needs more than just a hone)? Or would a Katana 750 long block be an easier starting point - they come with the DOT heads, I think? Then high comp pistons and new cams.

I'm looking for suggestions on how people would go about building a warm 750 engine. It's for my '85 GSXR750. It hasn't been well cared for and it has high mileage - the odometer has just gone around the clock and now reads 45km. Rather than just blindly rebuild it I thought I'd ask the forum what they would do, were it them. I know that a lot of people put Bandit engines in but that just doesn't seem for me. My cars have always been rev-happy twin-cams (Fiat, Renault Clio Sport, Peugeot 206 GTi 180) and my bikes 2-stroke screamers, plus the say what now!? 600 I currently have. The higher the revs, the happier I am - I love blipping the throttle and changing gears. From what I've read, that seems to indicate that I should be looking for a Slingshot 750 motor which should bolt straight in. That would also mean a cable-clutch, which I'm pretty used to. But then there's part of me that wants to retain the original bottom end and build something a little special out of that. The bike is going to be mostly show and only a little go, that's going to mean a Yoshi system and Keihin carbs. More than that, I'd love to hear your thoughts. Cheers for your time