1170cc bore kit

Hi could anyone advise me on an 1170 cc bore kit I was just wondering would the original crankshaft take the strain of the extra compression or would it be better to get my crankshaft upgraded new bearings etc thanks

alig666 wrote: Hi could anyone advise me on an 1170 cc bore kit I was just wondering would the original crankshaft take the strain of the extra compression or would it be better to get my crankshaft upgraded new bearings etc thanks

can it take it MAYBE would it be wise NO best off to have crank redone and welded what are we working on KZ, J , GPZ1100 ?

It's an 82 kz1100 shaft with 50000 miles on it I think your right would rather do it properly stripped engine to fix couple of oil leaks to find flywheel magnets broken up and stator destroyed so stripped bottom end to clean out was very surprised bike never missed a beat they were built to last ! Thanks for the help

WHOOOOO,

1170 on a shafty............is this the setup you are going to run?

Yeah hopefully it's blowing oil past the rings so was thinking about it and asking what you all thought

No eBay APP ID and/or Cert ID defined in Kunena configurationI'm a bit concerned about the shaft drive mech having trouble holding the additional power?

I would get it right on the crank. With 50K worth of miles, it could be tired.

I would run a welded crank.

I saw a MKII welded crank that accepted index rod on ebay.

Yeah not worth taking the chance on the crank will definitely get it welded . Id maybe be better to get and smaller size piston kit dont want to put to much pressure on the differential though it seems to be well made . How much horse power would you think It would make as 1170 they were 102 hp when new appreciate your help thanks

I'm watching this one I have a 82 Spectre.

Watch using the MK11 Crank it is set up for a peanut style cam chain your bike has a hyvo chain if by chance you end up needing a crank I have a brand new "J" model crank Brand new in Kawasaki box.

Barry

4TheKZ1000 wrote: I'm a bit concerned about the shaft drive mech having trouble holding the additional power?

A well deserved question....I know this is not the same bike, but I know of a couple of fellows who turbo'ed their ZG 1000's (Concours) and have had no trouble with their drive shafts. I know of 1 guy who turbo'ed his ZG 1400 (Concours) and has had no problem with his drive shaft.

I know of one guy who ported the head on his ZG1000 and had his cams reground for power. I understand his bike will wheel stand on command. ( this guy sells re ground cams for the C10 or ZG1000 is well known and respected in the community. He has had no reported problems with his drive shaft. Plus shafties don't do wheel stands any way right?
I also know one guy in person who put a 1200 cc motor in his ZG1000 frame and was able to use the shaft drive components from his ZG1000 motor. He has had no problems with his drive shaft.

The only drive shaft problems I am aware of in the C10/C14 communities is in 2010, there were some C14's released with out C clips installed on the universals from the factory. That little deal caused some havoc on those bikes.

If you wanted to change gear ratios, you couldn't. Otherwise should be no problem.

don

Alig A piston kit on its own wont give you much of a HP hike. Expect rather an increase in Torque If the crank is in good order then i suppose the planned use of your KZ will determin if you need it welded crank or not