Wiring harness / loom and carbs

[Prime]

Fellas / ladies 

is there any significant differences between the Slabside and slingshot loom 

 

also can anyone tell me what bike these carbs are from etc 

rubbers are that of a code for the 38/40s iirc 

 

thanks 

[Prime]

Is it missing a rubber aswell?

[Ben Slabby]

Yes, the looms are quite different. 

Those carbs are from a GSXR1100 G or H, the brackets between the carb tops give it away. The J and 1100F use a long rail across the back. 

Edited July 1, 2025 by Ben Slabby
Fat fingers

[Prime]

Just now, Ben Slabby said:

Yes, the looms are quite different. 

Those carbs are from a GSXR1100 G or H, the brackets between the carb tops give it away. The J and 1100F use a long rail across the back. 

What are the noticeable difference please 

As I personally would say it was a Slabside loom but I’m just going off the motor as it’s a 1052 

thanks 

 

[Jaydee]

22 minutes ago, Prime said:

As I personally would say it was a Slabside loom but I’m just going off the motor as it’s a 1052

Slabside has twin pick ups, slingshots only have one.

[Duckndive]

You can swop the slabbie pick up plate and rotor onto a slingshot or bandit motor ...

or visa versa 

 

Edited July 1, 2025 by Duckndive

[Ben Slabby]

4 hours ago, Prime said:

What are the noticeable difference please 

As I personally would say it was a Slabside loom but I’m just going off the motor as it’s a 1052 

thanks 

 

How much of the slabby loom you planning on using? You got the CDI? What electrical accessories you using, sling or slab?

[Prime]

I picked the bike up yesterday it’s been sat for a few years 

it’s a standard 750 slingshot with a 1052 engine in 

I think it might be the 750 loom still being used after Jaydee mentioning the pick ups as this has a single pick up on it from a quick glance

other than a Quick Look around the battery tray area at the loom and spraying some juice in it to hear it run I’ve not touched it 

I’ve got no head/tail lights but have neutral lights so naturally I plan to take the panels off and have a good look what’s going on with it 

 

[Dezza]

If it has the 1100 slabby trigger wheel, backplate and CDI, then no problem. The wiring isn't complicated and the diagram is freely available in the manual which can be found online. I have a slabby ignition on a bike with a Blandit 12 engine and it works just fine. If it's running a 750 ignition then I'd check the advance retard data in the manuals. The rev limiter would differ and I would still wonder if an ignition for a short-stroke 750 would enable an 1100 slabby engine to run properly.

Edited July 2, 2025 by Dezza

[Prime]

Vacuum? Maybe the one in questioning? 

Edited July 5, 2025 by Prime

[Rossco(Iceman Josros)]

On 7/5/2025 at 10:05 AM, Prime said:

Vacuum? Maybe the one in questioning? 

Yep all correct and that’s the vacuum take off for the fuel tap 

[Prime]

1 hour ago, Rossco(Iceman Josros) said:

Yep all correct and that’s the vacuum take off for the fuel tap 

Many thanks 

[Prime]

Next question what’s with the jet under the diaphragm? 
connects to the pilot jet does it not? 

[Rossco(Iceman Josros)]

On 7/6/2025 at 1:20 PM, Prime said:

Many thanks 

You are welcome bud and that the pilot air jet under the diagram 

[Prime]

Fellas

Am I right in saying the 1990 750 slingshot loom doesn’t have a clutch switch (uk) I couldn’t see the wires for one however there was a switch on the master (may have been changed, and came with a switch on the bottom)

the bike starts up and runs fine. (1052 engine, not that it should make any difference to the issue at hand) 

I had to by pass the side stand switch initially to get it to run when I first got the bike (checked this joint again) however put it into gear and it cuts out, also have an oil light that I didn’t notice when I ran it the other day. 
I’ve pulled the clutch in and span the back wheel and put it into gear and tried spinning the wheel etc. 

Ive taken  the clutch plates out and made sure there wasn’t any sticking etc and rebleed the clutch just to eliminate that also.

I think it’s electrical personally just wondered if anyone had any thoughts 

[Duckndive]

21 minutes ago, Prime said:

I think it’s electrical personally just wondered if anyone had any thoughts 

There is a sidestand cuts out switch on some 

put it in gear with the stand still down and it kill's  the ignition 

if the switch is missing "just link it out" 

Edited August 17, 2025 by Duckndive

[Gixer1460]

I would say RTFM ! But no one seems to bother with manuals these days - god knows why . . . . Q's like this is what they are for! 

[TonyGee]

10 hours ago, Prime said:

Fellas

Am I right in saying the 1990 750 slingshot loom doesn’t have a clutch switch (uk) I couldn’t see the wires for one however there was a switch on the master (may have been changed, and came with a switch on the bottom)

the bike starts up and runs fine. (1052 engine, not that it should make any difference to the issue at hand) 

I had to by pass the side stand switch initially to get it to run when I first got the bike (checked this joint again) however put it into gear and it cuts out, also have an oil light that I didn’t notice when I ran it the other day. 
I’ve pulled the clutch in and span the back wheel and put it into gear and tried spinning the wheel etc. 

Ive taken  the clutch plates out and made sure there wasn’t any sticking etc and rebleed the clutch just to eliminate that also.

I think it’s electrical personally just wondered if anyone had any thoughts 

I had the same issue with a bandit 12, both switches where bypassed and as soon as the neutral light went out  the engine cut out, after a lot of searching it turned out to be an earth problem, on a bandit their is a black wire that comes off the main negative wire from the battery,  and on that wire their is a spade connector that was corroded, cleaned it up and fixed the problem, so worth checking all the earth connections. 

[Prime]

I agree with RTFM 

thanks I didn’t think of that 

however thanks to TonyGee

the wire you mentioned I found  hidden in the loom with an old joint

wasn’t where they usually are so didn’t think much of that particular wire when head scratching 

that’s what happens when you take on other people’s projects 

thanks 

[Dezza]

If a bike is made up from bits taken from various models, then we'd all have to read multiple fucking manuals in order to get near to solving often simple problems that others have already solved

[Duckndive]

2 hours ago, Dezza said:

If a bike is made up from bits taken from various models, then we'd all have to read multiple fucking manuals in order to get near to solving often simple problems that others have already solved

True but he did say it was one of two possible looms in an earlier post ..... 

Most are available on web "but as most folk use smartphones now" not easy to read on one....