Bandit 750

[KnockKnock]

I’m sure you’ve all seen and heard it all before. But I just want to ask a couple questions before I do this project. Mk1 600 looking at putting an 85’ slabby 750 in it. 

Got some 105 jets to go in my standard kei hin carbs. With stock air box and the bigger jets, will that be sufficient for the 750? 

And just any of your tips/info would be appreciated. Thanks

[Swiss Toni]

It'll fit. Might be slightly taller. Easier mod is fit 750 top end to B6 cases. Don't forget to tell your insurance company! 

Edited March 7, 2019 by Swiss Toni

[wraith]

I'd look at using the 750 carbs, or even the 34mm cv carbs off the 1100 slabside as the b6 carbs may restrict the 750.

As Swiss Toni says look at just putting the 750 barrels, head and cams on the b6 bottom end

but there again I cannot remember if the slabside motor is the long stock or short motor to match the b6 ?

Just be the Jack D that's rotting my brain  

[KnockKnock]

8 hours ago, Swiss Toni said:

It'll fit. Might be slightly taller. Easier mod is fit 750 top end to B6 cases. Don't forget to tell your insurance company! 

Yea I was thinking just doing that... keeps the engine code the same too

[KnockKnock]

8 hours ago, wraith said:

I'd look at using the 750 carbs, or even the 34mm cv carbs off the 1100 slabside as the b6 carbs may restrict the 750.

As Swiss Toni says look at just putting the 750 barrels, head and cams on the b6 bottom end

but there again I cannot remember if the slabside motor is the long stock or short motor to match the b6 ?

Just be the Jack D that's rotting my brain  

Yea I’m probably going to just swap everything over. New rings are £80 a piston though... pretty sure it’s long stroke I need

[cheese monkey]

I’ve got a GSX750 motor and carbs that need a new home. 

[KnockKnock]

4 minutes ago, cheese monkey said:

I’ve got a GSX750 motor and carbs that need a new home. 

Long stroke? How much do you want for them? 

[cheese monkey]

I have no idea if it’s long or short but I expect someone will. It’s a 99 750 Inazuma

[KnockKnock]

1 minute ago, cheese monkey said:

I have no idea if it’s long or short but I expect someone will. It’s a 99 750 Inazuma

Okay to be honest I would probably just throw the whole lump in. Go on tell me the damage 

[KnockKnock]

Just now, KnockKnock said:

Okay to be honest I would probably just throw the whole lump in. Go on tell me the damage 

 

4 minutes ago, cheese monkey said:

I have no idea if it’s long or short but I expect someone will. It’s a 99 750 Inazuma

Being a 99 would it fit straight in?! Is that liquid cooled at that age?

[cheese monkey]

No it’s oil cooled. The GSXR was water cooled then.  Yes it would fit. 

[cheese monkey]

One thing I would say (not trying to persuade you to have mine) is getting the engine, inlet rubbers and carbs ideally from the same bike will make your life a lot easier. When I did a 6/7 I went through 3 sets of inlet rubbers and 2 sets of carbs due to rubbish Eblag sellers or just getting the wrong ones. It was pretty frustrating. 

[cheese monkey]

Also I think if you use a 750 lump you need to use the B6 sump, but the 750 oil pickup. I certainly did that swap on mine. Might of been for clearances or something, I'm not sure now.

[Swiss Toni]

Quick look at 'Frankensteins Pages'  

Since the B6 and later 750R 90-91 have the same stroke, cylinder block dimension, and wrist pin
diameter, the 90/91 block+pistons can be swapped with the B6 stuff (although you’ll have to
check that the pistons don’t hit the head/valves).

 

[wraith]

The long stroke engine is the 749cc with a 48.7mm stroke.

1985 through to 1987 and the 1990 models 

Or that's what the Haynes manual says.

Edited March 8, 2019 by wraith