gs850g cafe racer tunning

[Steve]

Steve when I clicked "here" it didnt come up with anything. It says no matches.

Sorry about that.

I did an Advanced Search. I used "injection" as the search word and limited it to "titles only".

I tested it before I posted it, evidently the search feature relies on local cookies.

.

[Big T]

Basically, no can do

Shaft and chain are totally different drive lines and frames

[Chuck78]

You could likely stuff another larger 8 valve shaft drive engine in, gs1000g or gs1100g (both are taller engines but I know an 850g bolts right into an 1100g frame), but the 16v 1100&1150 that are to this day very sought after & very viable drag racing engines...they are a totally different beast - biggest obstacle would be chopping up your shaft drive frame & welding it up to make it a chain drive frame. You converted it to a monoshock already, right? Well, more major frame alterations would be needed.

The 1150 is a SERIOUS engine... Is it worth all the extra work to go from "pretty quick" to "lethally deadly death defyingly fast?" A front end collision victim frame or title-less 1000/1100 frame would make a good donor for the swingarm mounting areas. I'm not too familiar with the shafty frames though. I just looked at your photo, looks like that would take some work... Maybe you could get another shafty swingarm and use it upside down to weld to the other half to replace the shaft side, and then get a chain drive swingarm to cut the dropouts off of so you would have chain adjustment capabilities. the biggest concern would be aware the chain would lie off of the engine (may likely be in the path of the swing arm). the front sprockets are very small, this might be a deal breaker.

[Chuck78]

Heck, it would be far easier to just monoshock a GS 1000 or GS 1100 frame (chain drive), and then buy a suzuki bandit aluminum a swingarm that will bolt right on, which is already setup for a mono shock. And aluminum! so you could ride it as an 850 and get some enjoyment out of it, and you could turn around and swap all of the parts over to the 1100 frame with the 1150 engine & sell your awesome looking 850 frame & fresh engine to recoup some costs. You'll need a chain drive rear wheel also... Mid 80's gs mags are wider on the big bikes, and wire wheel options are endless if you buy buchannan's spokes and aftermarket excel/sun/d.i.d./akront/etc rims in wider widths for thd gs hubs. This gets pricey, $500 used for a nice gs-hubbed custom set is a good price.

Run it as is for now & enjoy the riding season & minimal maintenance of the shafty. If you get a good deal on an 1150 drag motor, build/buy a 1000/1100/1150 monoshock frame. After 83, most of the serious (I.e. BIG) bikes went to monoshock already! Just "cafe" the frame to your likings & go!

[mrbill5491]

I'm still trying to figure out why there was any gas left in the carbs after 22 years. Should have evaporated in a few months after being parked.

[Chuck78]

I'm still trying to figure out why there was any gas left in the carbs after 22 years. Should have evaporated in a few months after being parked.

Leaking petcock? Or parked in the PRI position... Coulda had leaking needle/seats on top of that even

[loxslhelm]

The bike sat for that long with gas in the tank. So who knows. As for the 1150 I have access to one with mtc block Vance and Hines built head welded crank forged rods and pistons basically a lot. As for weither or not it goes in the 850 frame we'll see. If so I plan on refabing the swingarm mount to accept a gsxr swingarm. Then gsxr wheels so it will be similar to a gsxr 1000 just look way better. Center of gravity is lower but I dont need to be ripping roads like a maniac. It might see the drag strip though.

[Chuck78]

That is going to be a VERY FAST street engine. Depending on the cams, it may not be very streetable at all, or at least very tempermental & dissappointing when riding at a casual pace and just keeping up with traffic. For aggressive riding, it will be a wild monster...