Ådne95

No webshop sadly... I stumbled upon a listing on the norwegian equivalent to Eblag where a dude was parting out a 1980 GS750ET

wow, turned out to be quite the discussion this Gears showed up now, got them for the equivalent of £45 including shipping. Pump was only an extra £50 so I got that too Question: I see there's two different part numbers for the pump - 16400-49210 and 16400-49220 - only the latter is listed for the EF engine. The 49220 one looks to have a different mounting or spacer of some kind. Are the pump itself still interchangeable? (I'm still in the hospital bed and haven't started disassembling my engine, so can't compare the pumps...) 49210: 49220:

Thanks a lot Arttu! Kent JP3 cams have an equivalent of .351" lift then you don't happen to have any experience with those cams ?

Ah, of course - makes sense Unless anyone here has input on the difference, I'll just have to get going on dismantling the engine this winter so that I can measure rocker ratio. Currently on sick leave with a screwed up foot after a wreck, this means a lot of time sitting in hospital beds and now sofa at home... so I've done some planning and made a budget for parts prices I need/want - not really sure how smart that was, I think ignorance is bliss when it comes to project costs

I've got another question, regarding cams; I see Web cams are about £845, Kent JR3 cams are £325 - how is the quality of the Kent cams? any explanation for the price gap? From reading various threads, the Web cams with .340" (or maybe .348") lift should be fine for what I want, the JR3 cams state 5.57mm lift, which equals 0.219"... I assume this is measured at "different ends" of the rocker ratio??? I cannot seem to find the rocker ratio anywhere - how do these cams compare performance wise?

Good to know! But no need for the moment, I'm just planning on a moderate power increase; EFI, performance cam without compromising rideability and maybe some bigger valves

Thanks guys! Looks like I'll be able to make a good deal here

Hi! Currently in hospital after a crash, waiting operations so no access to the garage for a few weeks/months. (Several complicated fractures in a foot, and amputated big toe... I wore proper boots (alpinestars smx V2), without them doctors say I'd probably lost the whole front part of my foot. Wear your motorcycle boots folks!) Well, to the question: My situation means plenty of time to look for parts online, and I stumbled upon a local parts listing with what seems to be the "high flow" 750 oil pump gears for my EFE engine. Can anyone confirm from the pictures this is 16331-45000 (pump) and 16321-45002 (clutch/drive gear) ? I counted the teeth on pictures, and looks correct - 29t on the pump and 38t on the one behind the clutch.

Thanks a lot, good to know!

I haven't decided on the chassis plans yet. I have two bikes - the EF and a 1981 gs1100. Currently leaning towards putting the EF engine in the GS frame and making a cafe-ish/restomod build with modern forks/swing/brakes/etc. In an ideal scenario I would restore/build both bikes, but looking realistically on time and money It's more than enough to build just one - at least for the time being Thanks for the input! Thank you for the answer Arttu! I've read quite a few of your posts 15 hp just from EFI and exhaust sounds promising. After thinking some more about this, I think the plan has to be tearing down the engine first to see what needs replacing. I worked part-time at an engine workshop during university so I hope I could do most of the work myself, or call in some favours from my old colleague there. When I worked there, we built a motorcycle engine adapter for their engine dyno, hoping I can to put that to use eventually Ok, thanks for the weight input, sounds quite like I expected, but had to ask

Hi! I've got a 1984 gsx1100ef (1150) that's ready for some work, currently in the planning/budget stages of the project. First off, I am going to EFI convert it, but when it comes to engine upgrades I would appreciate some input from the experienced guys on here! At 115hp from a 1137cc I-4, I guess it doesn't flow record-breaking amounts of air. Am I right that just getting performance cams (and valve springs) is kinda worthless without getting bigger valves and porting as well? Any other low-hanging fruit performance-wise? Increasing compression ratio for example? I've read that bigger cams requires hardwelded rockers, and that using oil pump gears from a '77-'82 gsx750 makes more oil pressure. Any other stuff that's smart to do with these engines? This might be a dumb question, but is there any way to shed weight off of these engines? I found somewhere that the gs1100 engine is about 90kg/195lbs and I guess the EF engine is even heavier Any specific components that could be put on a diet or changed for lighter ones? Kind regards, Ådne

Interesting project, I too will be doing EFI conversion on my gs1100 project bike(s) some time in the future once i finish studies. I think you are in good hands if Arttu is helping you out We do have some competent people on stuff like this here in Norway too, but my impression is they are usually hard to find, and/or expensive... If you are based in østlandet you could reach out to TM Bryhn in Drammen, he did a great job on a custom ECU for our GSX-R engined FSAE car this summer. Also heard good things about SWR (skunk works racing) in Lillestrøm, and of course you have Klev Tuning. Lykke til med prosjektet!

Thanks! I see Well - any ecxuse to do some machining is just great

Gotta love a efe How easy does the K3 1000 front end fit? Can you use the triples off that?

I've also wondered a lot about this, without being able to find a reason.. Might just be a typo on the page? Edit: this page also states a 10hp difference, but between years 1985 and 1986... http://motorcyclespecs.co.za/model/suzu/suzuki_gsx1100ef 85.htm 114hp http://motorcyclespecs.co.za/model/suzu/suzuki_gsx1100ef 86.htm 124hp