[38mm Mikunis?]

aren't the fzr ones downdraught type?

I was told they would work, but thought I'd check here first   I'm sorry, but I'm not sure what a downdraught carb is? What differs from other carbs? Looked normal to me, but I'm only used to twosmokes  

[38mm Mikunis?]

Hi! Got a good offer on some 38mm mikuni roundslide vacuum carbs from a Yamaha FZR(i think)1000 today.  

~£100 and they come from a bike who has only went about 20k miles  no need for rebuild yet, right? 

There wouldn't be any problems using those on my '86 1100EF? Except maybe having to modify the intake?

Also, what size are the original ones? Haven't got the bike home yet, so can't check... 

[A few 1100EF questions]

Sorry didn't realise the aftermarket sources had dried up - I think it was APE that produced them and everyone else packed them under their own label. They aren't a complicated gear and always in demand so your M8 may have a niche market if he can produce them around the $100 point !

Even better Robinsons list them.......http://www.robinsonsfoundry.co.uk/content/pages/shop/parts/Suzuki/GS/GS750/B-DB 1977/gs750boilpump.htm

£61 and change - but they need to order so don't hold your breath! But OSS still gets discount - I believe 10%?

But of course you also need the corresponding clutch drive gear.......http://www.robinsonsfoundry.co.uk/content/pages/shop/parts/Suzuki/GS/GS750/B-DB 1977/gs750bclutch.htm  Which will be another £73 and change and a wait. So about £120 all in new - I think i'd be scouring Eblag!

Thanks for the information!   That's a store I didn't know about, far more reasonable price than cmnsl and the other sites claiming ~£140 for just the pump gear  

Reckon it will be much cheaper for me to have my mate make it. If I remember correctly, he made a lot of the gearbox gears for at least one of his twostroke beasts (132rwhp RG500 and a yamaha RD500). I'll definately run it past him to sell these gears!

[A few 1100EF questions]

I fitted orient express oil pump gears. Not sure if they make them any more.

Doesn't look like that    I have a mate who can do some cnc machining wizardry, I know he has made own custom gears before, so I could turn to him if this gets difficult  

[A few 1100EF questions]

Suzuki never used forged pistons till the watercooled engines arrived so that info is suspect - sorry, and not sure about the GSX750 oil pump gears as that was a plain bearing crank and used a different pump / relief valve to get the = 60psi pressures required. The GS gears everyone wants - just get new from Schnitz!

235hp from a stockish GSX and a Rajay - must have been boosting its tits off ! ! !

did some research, 1977-83 gs750 oil pump gear (part no 16331-45000) looks just like the gsx1100 oil pump  gear, but has 29 teeths in stead of the 1100's 33 tooth  expensive though, 150$ for a god damn sprocket   couldn't find it in the Schnitz racing online shop?

[A few 1100EF questions]

I had a Efe at the back end of the eighties, I also wanted to gain more power, but as is nearly always the way my pockets were empty.

So my idea was to increase power trying to use stock Suzuki parts as it would be cheaper than aftermarket parts.

Most of the guys that were running Efe`s went with big bore kits from the states, which meant that there were loads of standard Suzuki pistons around, which are  forged good for turbo`s

The only work I did was replace valve guides and seals, heavy duty cam chain , slotted cam sprockets, heavy duty cylinder studs + nuts, two standard base gaskets and a  80thou spacer to lower compression. Also replaced the oil pump gear for that off a Gsx 750 et to give more oil pressure and straight cut gears to crankshaft and clutch basket

I managed to buy a used Ray Jay turbo from a guy at Santa pod, replaced the bearings and fitted a new super shorty SS carb result 235 bhp at rear wheel.

Never had the chance to run it at Santa pod but was loads of fun on the road.

I don't think I'm gonna turbocharge it, but noone knows what the future will bring   thanks for the input anyway   What year GSX750ET do you use oil pump gear from? 1980?

 

Ha, we are also all new to this forum, bud.

Is this forum new? Didn't know

 

Two more questions: I want to get upgraded cams, new exhaust, and maybe new ignition coils if the old ones are bad. What size carbs is appropriate for those modifications?

And If I run this setup, what do I have to do to the oil system? Gsx750et oil pump gear and the top end oil feed kit? 

[A few 1100EF questions]

Thank you so much for the good answers, guys!  

I'm determined to build this bike the way I want it, and it's going to be a long-term project. I don't care if I blow the budget, that just means I'll have to wait a bit longer to get it on the road. 

[A few 1100EF questions]

Hi! Hope this post is placed right, I'm new to this forum.  

I am soon to be the owner of a mid-80s GSX1100EF, it's in need of som love so I am gonna do a total rebuild. I'm just doing a little research on these bikes, and I discovered this site: http://www.suzukicycles.org/GSX-series/GSX1100EF.shtml, it says the '84 model has 114hp, and '85 and on has 124hp, what is the differences here? I'm not sure what year the bike I'm getting is, it was said either '84 or '86 mod.  

The bike uses some oil and theres a little blue smoke in the exhaust. Current owner reckoned it to be the valve stems, so I have to do some work to the engine aswell. I want some more power out of it, I have the equipment for machining the cylinderhead, and I've looked at performance cams. But I see there are gsxr1100 cylinder heads on Eblag for much less than new cams etc. Would I be better off just buying a gsxr1100 head? The EF is 1135cc and gsxr is 1052cc, does that mean it won't fit?

Also, since I am rebuilding the engine, or at least the cylinderhead, what parts would be wise to change in addition to prings and stems? The camchain for instance?