i need more umph (85 gs 700es)

[Anonymous]

need more oomph

yea i have an oil cooler but sometimes when ive been riding for a while it gets really hot about 212 degrees dont know if thats normal but i dont want it to overheat, i usually take a little break and let it cool some cause one time i rode like that for about 2 hours and i could here my valves starting to clang a little dont think it was the gas i allways use 93 octane

[Anonymous]

Re: need more oomph

yea i have an oil cooler but sometimes when ive been riding for a while it gets really hot about 212 degrees dont know if thats normal but i dont want it to overheat, i usually take a little break and let it cool some cause one time i rode like that for about 2 hours and i could here my valves starting to clang a little dont think it was the gas i allways use 93 octane

I BELIEVE THAT YOU WANT THE ENGINE OIL TO RUN AT AT LEAST 212 DEGREES SO WATER CONDENSATION IS BOILED OFF

[moto_dan]

Re: need more oomph

yea i have an oil cooler but sometimes when ive been riding for a while it gets really hot about 212 degrees dont know if thats normal but i dont want it to overheat, i usually take a little break and let it cool some cause one time i rode like that for about 2 hours and i could here my valves starting to clang a little dont think it was the gas i allways use 93 octane

My temp(if the gauge is correct) is more in the 220-230 range. According to others on this site your temp is fine and fossil based oils hold up even to the 300degee range. As Scotty noted it's important for the oil to at least reach 212 degrees to extract the moisture from the oil.

[Anonymous]

I had a '83 750ES and made the mistake of installing individual filters, what a pain. You have to completely remove the engine to get the stock airbox out. Performance gain is slight and noise level increases quite a bit.
Also, don't waste your money on the jet kit, they're only needed if you do install the filters. I agree with the others, first make sure everything is up to spec. Compression test, carb sync., plug wires and caps, etc.. I remember my 750 being pretty quick and the mags said the 700 was about the same.
I live in Cincy too and would be glad to lend a hand if you need it.

Axel

[Anonymous]

step up

I too have an '85 700E. It was a nice step up from my CB550 F so that I could keep up with my bothers tweaked gsx1100G('91) and my buddies newer bikes. It has proved well as a good commuter and a quick little bike. Mine has a V&H and stock replacement K&N. The best thing I have done so far is put a set of cheap kenda's on it. I got the 130/70/17 rear tire which looks tiny back there. It was way too wide for the wheel(made for 4" and squeezed onto a 2.5") so it got taller and more narrow. Now the bike switches up real nice and handles a ton better. I just decided to leave the 700 stock and get a tl1000r as soon as I have the funds...keeping the 700 of course. Well, first i gotta sell the 550! Anyone interested in a '77 cb550 super sport with just over 6k mi on it? Runs great.

Trevor

[Anonymous]

I own an 83 750es punched to 920. It is currently being redone from the frame up. I would argue that it would not be too difficult to go ahead and put a 1100 or 1150 motor in it. I have done some rough measuremenst with my 1100 and 1150 and everything seems too close not to try it. The research I have done on thsi is 50/50, half teh people I speak to say it will bolt right in, the other half say no. The person I put most stock into is a guy at the local track. I was standing in teh pits and asked him if the motor from that bike, I pointed at the 1100, would fit into the frame of that bike, I pointed at a nice 83 GS750ES. He said it will bolt right in. I have not fouynd anyone who has actually tried it. I know anything up to 1150 will bolt into a 750 up to the year 82 because I own one. But I am not sure on teh 83 and up 750E. Any opinions on this?

A little more far reaching is this theory. The other day I was looking at an article on a Bandit 1200. This may be way out there, but geez the frame and motor mounts look awfully close to that of a GS, which would not suprise me one bit. I have not been able to get to the local shop to take any measurements, but I would ALMOST, bet that a bandit 1200 motor will fit in a GS frame. Any opinions on this?

Thanks!
Mike

[Anonymous]

Just do what I am doing... buy a bigger engine, then beef on that :twisted:

[moto_dan]

I own an 83 750es punched to 920. It is currently being redone from the frame up. I would argue that it would not be too difficult to go ahead and put a 1100 or 1150 motor in it. I have done some rough measuremenst with my 1100 and 1150 and everything seems too close not to try it. The research I have done on thsi is 50/50, half teh people I speak to say it will bolt right in, the other half say no. The person I put most stock into is a guy at the local track. I was standing in teh pits and asked him if the motor from that bike, I pointed at the 1100, would fit into the frame of that bike, I pointed at a nice 83 GS750ES. He said it will bolt right in. I have not fouynd anyone who has actually tried it. I know anything up to 1150 will bolt into a 750 up to the year 82 because I own one. But I am not sure on teh 83 and up 750E. Any opinions on this?

A little more far reaching is this theory. The other day I was looking at an article on a Bandit 1200. This may be way out there, but geez the frame and motor mounts look awfully close to that of a GS, which would not suprise me one bit. I have not been able to get to the local shop to take any measurements, but I would ALMOST, bet that a bandit 1200 motor will fit in a GS frame. Any opinions on this?

Thanks!
Mike

I bought my '83 GS750es with the intention of grafting my '80 GS1100 engine in it since the 1100 was already sitting in my '81 GS750 chassis, but I can tell you it will not bolt straight up. The '83 and '85 750/700 engines are a couple of inches shorter from front to back and top to bottom than the previous 750 engines. You may be able to disassemble the top end of the 1100, put bottom end into chassis and then assemble the top end with engine in the chassis if your so inclined. I had one fellow that swore he did this, but the 1100 engine had to be tilted at an odd angle. I couldn't figure out how to do it cleanly so
I shelved the project. Now if your willing to cut the frame like on the early 1100 gsxrs then I believe you could fit the 1200 bandit engine, GS1100 or early GSXrR1100. I would love to have a 1100 or 1200 in my '83. Let me know if you figure out how.

[HiSPL]

[quote="bymetoys"]I own an 83 750es punched to 920. It is currently being redone from the frame up.



What parts are you using to go to 920cc? Are you using a stroker crank? If so from where?

[Anonymous]

would love to have my 700 punched up a little bit anybody have any good ideas or about what i could take it to safely

[Anonymous]

axel what part of cincy are you in

[Billy Ricks]

I believe I might be able to get you a set of Cosworth forged 12:1 pistons to fit your bike.

[HiSPL]

How much for the pistons? And what size are they? Also do they fit the GS con rod? and do they have rings?
Thanks.

HiSPL@bigfoot.com

[Billy Ricks]

They are .05mm over which requires nothing more than a clean-up hone. They don't have rings and are not available. They are new and have never been used. I got mine from Britt Turkington years ago. It took me about 5 or 6 years to resolve the ring issue. I sent the pistons out to TotalSeal in AZ and they recut the top two grooves to accept a set of their Gapless rings which virtually eliminate ring blow by. They do fit the stock rod and have new wrist pins and clips. I'll have call Britt if you are serious. They would run over $1000 if you could even find a set. With what Britt wants and the work by TotalSeal you might spend $400 or so. The guy at TotalSeal said that what I ended up with between the pistons and their rings was very exotic.

[HiSPL]

what does 12 to 1 compression do for ya, as far as power?