I have a 1978 GS1000 that is rather custom, NOW im tearing into the engine. Having never built up a motorcycle engine like this, I am going to have some questions. More and more as the project goes on I feel.
Anywho, here is a run down on my bike first...
Notched and stretched swing-arm to fit a 2002 GSXR rear wheel, 2002 GSXR front end, hooped/upswept rear frame section with custom seat and integrated tail light, stripped, cleared and striped tank, VH 4-1 Exhaust with racing baffle. Dynatek 2000 kit, all digital gauge cluster, the brand eludes me at the moment...
Anyhow, I have had the bike for almost a couple years now, done alot of the work on it myself, however when I had the bike tuned up last spring the mechanic at the dealer did not torque down one of the upper cam retainers causing the exhaust cam to rattle loose and destroy the cam, and the other upper surfaces in the cylinder head, also he tuned it very poorly.
Needless to say the bike was immobile for a while, and will be for a bit longer.
Current plans are as follows
-1100 Piston kit
-ported cylinder head with larger valves and beefier everything
-carb upgrade
-agressive cam setup
-make a new wiring harness for the bike, eliminating the unused parts of the factory harness that are just hanging around.
Where I am at now:
Motor has been pulled, and torn almost all the way down, the last thing I have to do is blow the case apart and remove the crank to inspect the bearings ect.
Cylinder head was toasted, also had a few burnt up valves from poor tuning.
Cylinder bores were clean and smooth as were the pistons, aside from the 1/8in coating of crap on the top of the pistons.
My next thing is like I said, pulling the case apart to inspect the bottom end for wear before it goes back together.
Is the stock rod/crank setup good for a 1100 kit with a mild head build? Or does that need to be upgraded too?
I am not made of money and the head parts and piston set and machine work is going to be pricey so I was wondering if there are any tricks or tips out here on doing this conversion.
Also, I am curious as to what the best carb setup is going to be to run on this bike. I was looking at Dynoman's site and it looks like they have some custom built carb sets for this motor, but im not sure how much of an upgrade it will be. The stock carbs on the bike were a night mere to get tuned with pods and the exhaust before, so I am wondering what the best setup would be for this motor that might be slightly easier to get dialed in.
So with all of this in mind I will take any advice, tips, ect that is out there, even point me in the direction of previous threads pertaining to this topic so i can do some reading before I get to reassembly. Like I said, I haven't done this before, I am mechanically savvy having worked on VWS for a long time and I have just completed building a traditional 60's lowrider.
Thanks for the help guys! Looking forward to getting to know you all and getting this beast back to tearing up the streets. I'll get some pictures up soon!
Cheers!
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