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Loss of power 15 Dec 2021 15:15 #859130

  • Wiscolowlife
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I have a ‘79 kz650b and when I get it to about 70-80 mph it loses power and starts to bog. I put a new stator on it and the same thing happened. I’ve heard that it needs one from an ‘80 because it puts out more power and that I should change the regulator. Any ideas? Thanks

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Loss of power 15 Dec 2021 16:55 #859135

  • KZQ
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Welcome to KZRider Wiscolowlife!
Seriously doubt that your problem has anything to do with electrics.
Check first:
Gas cap vent is blocked?
Compression ratio?
Valve adjustment?
Good luck keep us posted.
Bill
 
www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
Projects:
1985 ZN1300

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Loss of power 15 Dec 2021 16:58 #859138

  • Nessism
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Yes, perform all maintenance as described in the real Kawasaki service manual.  Also, is the bike stock or did you install pod air filters or anything else?  Mods like pods can cause problems like you describe.

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