Front end swap

any assistance would be great,i am swapping a 82 GPZ750 front end to my 78 KZ650c i know the bearings are different but has any one done this before or suggest any help,i did take measurments of both stems and brg cup o.d.'s.also would anyone know a site for parts fiche for both these bikes to get OEM part no#s for the bearings like koyo or timken maybe kawi numbers that can be interchanged.also a site for service manuals.i know i am asking a lot but someone has some answers somewhere.thanks

Regards Paul

P.S. all this for a race bike to get better handling and steering with an 18" wheel.has to be within VRRA standards.

If you call all balls they will look the numbers up for you and will help you find the right one for the conversion. They are very helpful...... www.allballsracing.com

Brett

I just checked the parts diagrams at www.kawasaki.com/ (and that answers one of your questions ), and the 82 GPz750 has a 19" front wheel, so I assume you are using a 18" off something else?

There is a 79 KZ650 in my garage/shop right now that belongs to my Nephew (GPzInfested), and it has a 83 GPz750 front end (18" wheel) along with a 83 GPz750 swingarm (converted to dual shocks) and 83 GPz750 18" rear wheel. We got the adapter bearings from All Balls for the steering stem.

It also has a 83 GPz750 motor in it.

well the donor bike for all these parts was an 82 GPZ750,i have used the engine and now am trying to put the front end and rear end on also.you don't remember what the kit was for the front steering bearings? i am now finding out that you have to use to harness from the GPZ to the KZ to make everything work right including the coils.thanks for the help much appreciated.

Regards Paul:) :woohoo:

I don't recall the numbers, but you could look at the steering bearings list in the Filebase under the KZ Information tab at the top of the page. It will give you the bearing numbers (top and bottom) for your bike and the 82 GPZ. The bearing numbers will tell you the dimensions of the bearings (you can look up the dimensions for a bearing number at All Balls).

You need bearings with the ID of the GPz, and the OD of the KZ.

Steell
just wanted to let you know that i phoned allballs 1-888-228-3323 and talked to a realy nice guy named Kevin and he was absolutly helpful in every way,gave me all the bearing no#s and seals and shipped them UPS 2 day turn around.very helpful and very knowledgeable.he also told me about there web site that should be up and running by Oct.the programs is for front swaps and conversions.type your bike in and the front end that you are using and presto kit no#.again i want to thank you for your assistance.now when i get the kit my race bike should handle a lot better.

Regards Paul
VRRA # 757