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Forum: General Q & A

08-03-2007, 02:25 PM

Replies: 2

zz502 rebuild rpm

Views: 1,528

Posted By jmkachina

zz502 rebuild rpm

I had my 502 built into a 542. I can now only get 72mph at 5000 rpm. it has a direct dominator jet drive. should this motor have more rpm. 5000 rpm is the max i can get it to. the guy who built...

Forum: General Q & A

07-26-2007, 08:37 PM

Replies: 3

502 oil pressure

Views: 2,200

Posted By jmkachina

502 oil pressure

I recently had my zz 502 502 rebuilt it is now a 542.I have it in my 2000 kachina jet boat . the oil pressure starts out at about 60 then after it warms up it will not go above 25 at any rpm. it...

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