bore kit

kzgeary wrote:

alright bec now its only got about 65hp and stock new it had 87hp so i will notice a differents then.

Likely a good rebuild/tuneup with just the 10.25:1 pistons will make enough difference that you would notice. Will it be what you want? Dunno. Cams will push the power higher up in the power band, but the larger/higher compression pistons should help balance that out some.

andy9802gt wrote:

hocbj23 wrote:

Im sorry but I dont understand.WHAT is it u are trying to accomplish here?Do u want a drag racer? Do u want a more responsive street bike? Do u want to spend money just so a dyno reads a specific number?U need to spend a little time deciding what u want ur bike to do and then ask for help from folks on here as to how best to reach ur objective.Kits and cams and rejets are bullshoi unless u have a coherent goal in mind.Otherwise ur wasting ur time and ur money.Just mo.bj

wow! talk about a buzzkiller.

I dont think so.Double Dub said basically the same thing.Just trying to get some clarity and focus so whatever advice is offered is meaningful rather than off-the- lip bullshoi.We get enough of that.BJ

DoubleDub wrote:

Welcome to the disease! :laugh:

that's a common statement over athe ZRX site :lol:

kzgeary wrote:

ok its a 1979 kz1000 ltd it has 32,000 on it never rebuilt i just want a fast bike for the street so what would be my best kit for that

MKll engine was installed in '79 and '80 KZ1000,and I think the '81 police bikes.
Stought bottom ends.

No "kits" like the car guys.


I agree with the others
1075/10.25,small carbs(quicker throttle reponse but will run out of breath up top,built in rev limiter . )
small cams(under .400)
Learn about degreeing cams if you don't already know about it.
Old Man Rock has a wright up about it in the file base I believe.
K&Ns,pipe of your choice.

hocbj23 wrote:

andy9802gt wrote:

hocbj23 wrote:

Im sorry but I dont understand.WHAT is it u are trying to accomplish here?Do u want a drag racer? Do u want a more responsive street bike? Do u want to spend money just so a dyno reads a specific number?U need to spend a little time deciding what u want ur bike to do and then ask for help from folks on here as to how best to reach ur objective.Kits and cams and rejets are bullshoi unless u have a coherent goal in mind.Otherwise ur wasting ur time and ur money.Just mo.bj

wow! talk about a buzzkiller.

I dont think so.Double Dub said basically the same thing.Just trying to get some clarity and focus so whatever advice is offered is meaningful rather than off-the- lip bullshoi.We get enough of that.BJ

It was a joke dude. If people would search a little, they would find what you said to be a common response.

im just going to do a
1015 10.25:1 bore kit
365 cams
and im going to rebuild my stock carbs
and redo the values

measure your cylinder bores before ordering that 1015 kit to make sure you dont need the bores cleaned up

kzgeary wrote:

im just going to do a
1015 10.25:1 bore kit
365 cams
and im going to rebuild my stock carbs
and redo the values

That would be a good starting point. That would be a good project, nice and simple. Just picking back up that 20hp, you were down in the begainning, would be a real increase! Anything else, would be a real plus for ya. If your bore clearance is okay, you're in tall cotton. Good luck, take your time and have fun.

My 10.25 : 1 1105 with unknown cams, 26's that were jetted way lean put down 81.73 hp and 50.34 tq when I did a baseline run when I first bought it. I haven't had a chance to do a run since I got the carbs, timing etc. sorted out and took care of the worn out cam chain tensioner and idler assembly. It does run noticeably stronger though and is streetable enough that I ride it to work almost every day.

would it change anything if i got a Z1-R head,
and if i got j model police carbs

my gauges on my kz1000 are wobly at certain speed how to do u fix that i already try greasing and oiling them?

kzgeary wrote:

would it change anything if i got a Z1-R head,
and if i got j model police carbs

The head is the same as what you have now.
BS34s will require different carb boots,yours might need to be replaced if they are old and need to be replaced anyway.