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1100 specs. 1100K 1100L 1100M/N Fork Oil & Air Gap: 1100K - 418ml/146mm 1100L - 415ml/145mm 1100M - 398ml/131mm 1100N - 398ml/131mm Interestingly, tyre pressures vary quite a bit on both 750s and 1100s: 750J/K 36/36 750L/M 33/36 1100L 32/36 1100K & M/N 33/36 In this day and age I imagine these figures are redundant. Tyres have come a long way since Michelin M59X’s. I haven’t yet tried any lower than 36psi cold on the Rosso IV’s fitted to my 750K, I’ll add any findings here.

So got the wiring diagram printed A3 and Laminated at local place then did some reading then seperated the wire,s which are clearly marked into respective groups so I can work out what connector plugs and sockets I need to join every thing together

Thought it would be the sort of thing that would be useful to folk with the standard kit still fitted. J and K 750s 750RK 750L 750M Fork Oil & Air Gap: 750J - 407ml/141mm 750K - 416ml/141mm 750RK - 411ml/148mm 750L - 462ml/107mm 750M - 462ml/107mm Will add 1100s K to N later.

The same with the Mocal coolers I bought recently.

Think all I’d need, in addition to the neutral light, would be a top gear indicator, so don’t keep going for that non existent extra gear

@dezza cheers mate I figured it’d be something like this but I’ve got very little experience with slabbys

I also have these on the Moto Martin

You've answered your own question re: sump, bracketry . Slabby sumps have the oil cooler take-offs in different locations to slingshot sumps so you may have to faff about with the cooler hoses too. You'll also need the oil pick-up strainer thingy. All these parts aren't difficult to source as many people on here are likely to have a box full of them, e.g. me. Easiest way forward: 1) fit downpipes and collector (and other bits to enable this), 2) fit can, 3) make or have made a link pipe to join collector to can. However, I think hindle make a new slingshot system that is available in UK (but may be 750 only?)

I would fit efe hangers if they were cheap and available complete

Will an 1100 slabby full exhaust system fit an 1100 Slingshot? I’m thinking that maybe the end can hanger may be wrong and also possibly the sump. I ask as during my searches for a brand new system I see lots of manufacturers still making systems for the slabby but none for later 1100s (some even full titanium systems)

I'd suggest modding your own 'neutral only' plug but i'm wary abount the long term durability using solder contacts. Solder is pretty soft and when looking at the oem plug, the wear present shows the continual back & forth movement of the contact ball on the plastic and the brass contact. Also, the internal surface has to be smooth, so a blob of solder won't help a smooth gear change! I think if you've access to a lathe, make up some brass pins, epoxy them in after soldering wire to reverse end, then face the inside on a sheet of 1000 grit emery paper. Alternatively, steel rivets as contacts may work / be easier to obtain - just have to watch out for pad size between gear 1 - Neutral - gear 2 as they are pretty close. Its something I will be doing on the 1460 - i've got a oem switch already - but i've found that no matter how much you ride a bike, on occasion, you always 'go for another gear' when in top, so an idiot light will help! As an aside, I originally got the switch with the intention to perform a turbo boost level adjustment against gear position - some complex wiring required so my brain gave up at the time but its something else they are useful for.

GS 2 valve and GS / GSX 4 valve engines use different size switch's

Wow, that is handy to know.

Do not know if it fits GS motors, For my 1982 Kat with a 1100 air cooled motor the 1993 GSXR1100 WP (water cooled) gear position sensor was a direct fit. I got mine from the wreckers. Bandit 1250 left, 93 GSXR1100 WP middle, 82 GSX1100 right. The gear position specs per resistance/ gear.

Link here to what I've been considering. EFE Gear Position Switch

The Mick Hone Australia web site lists the original gs1000e part number as 37720-44600. On that site it lists other models that have that switch specifically. I could not see any 850 models listed. If I recall correctly, there is some differences between models in diameter and fit. Obviously if the switch is neutral swtich only or a gear position switch, there will be differences also. The GS850G original part number is listed as 37720-45100, however I'm unsure if it is a direct fit in the gs1000. I've been considering doing the same thing with my Kat and after a lot of investigation and frustration, decided I would try and do the modification listed somewhere on this site (I think). It involved drilling and epoxying additional contacts into the original switch to make it a gear position indicator rather than just a neutral indicator. This looked the best outcome for me as many gear indicator switches that fit are no longer available. I'm still to start the modification. Please keep us updated on the results of your finding. It would be great to document the various model gear position switch sizes and compatibility.