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Board index » Our legendary Kawasaki Triples » Restoring your old gal, all shiny like when she was new

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Yeddy911
 Post subject: 1972 Kawasaki H2 750
PostPosted: Sun Feb 21, 2021 6:05 pm 
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Joined: Sun Feb 21, 2021 5:59 am
Posts: 154
Location: NY
I got the bike a few weeks ago. So far I have removed most of the parts off the frame and started dealing with the engine. It has sat for 41 years with no attention. Fortunately the gas tank is in pretty good shape internally. Externally all the body parts will need a good paint job. The carbs took a bit of penetrating oil and gentle persuasion but are in good condition.
Seat cover is still good, but the foam is well on it's way to powder.


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Jim
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Sun Feb 21, 2021 6:56 pm 
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Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9999
Location: North Central NC
Whatever you do, don't install a carb rebuild kit!

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If it surges, that's normal, upshift.
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Yeddy911
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Mon Feb 22, 2021 8:13 am 
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Joined: Sun Feb 21, 2021 5:59 am
Posts: 154
Location: NY
I will be most likely be installing one of Ivan's jetting kits. http://www.ivansperformanceproducts.com/h2.htm
I have known Ivan since High School. I believe him to be one of the best tuners. He spends a great deal of time getting bikes running at their best.
Unfortunately he moved from the area, so I will not be able to stop by his shop anymore.
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Yeddy911
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Mon Feb 22, 2021 8:27 am 
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Joined: Sun Feb 21, 2021 5:59 am
Posts: 154
Location: NY
Fortunately I was able to get the pistons and cylinders removed. It took a lot of penetrating oil, time, and effort to get them off.
The new Wiseco pistons and rings are off to the machine shop with the cylinders and heads.
Cleaning up the engine and frame underway while I await their return.


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Jim
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Mon Feb 22, 2021 8:43 am 
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Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9999
Location: North Central NC
Yes, Ivan's jet kits are good. I don't put them in the category of all the horrible rebuild kits that are on the market. But why didn't you go with Wossner pistons?

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Zambia
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Mon Feb 22, 2021 10:27 am 
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Joined: Wed Jun 08, 2011 10:08 pm
Posts: 1901
Location: Campbellville Ontario
Jim wrote:
But why didn't you go with Wossner pistons?

What's wrong with Wiseco? You can get them for $100 less per set and they are good quality!
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Jim
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Mon Feb 22, 2021 11:05 am 
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Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9999
Location: North Central NC
Zambia wrote:
Jim wrote:
But why didn't you go with Wossner pistons?

What's wrong with Wiseco? You can get them for $100 less per set and they are good quality!


Interesting. I didn't know that their price had gotten lower than Wossner. Do you know if they have solved the skirt collapse problems of past decades?

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Last edited by Jim on Wed Feb 24, 2021 11:15 am, edited 1 time in total.

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H2RTuner
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Tue Feb 23, 2021 7:45 pm 

Joined: Thu Jun 09, 2011 11:25 am
Posts: 3156
Wiseco needs to be set up.way too loose.
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Jim
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Tue Feb 23, 2021 8:26 pm 
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Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9999
Location: North Central NC
H2RTuner wrote:
Wiseco needs to be set up.way too loose.


I get the impression that their manufacturing techniques have changed since those days, but I don't know for sure.

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H2RTuner
 Post subject: Re: 1972 Kawasaki H2 750
PostPosted: Wed Feb 24, 2021 10:40 am 

Joined: Thu Jun 09, 2011 11:25 am
Posts: 3156
Nope, same dismal stuff, and too much bore clearance.

Wossner is the better product than Wiseco, by far.
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