Compression Numbers

  • Strizzzo
  • Strizzzo's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 78 Kz1000A
  • Posts: 106
  • Thanks: 0

Compression Numbers

17 Jun 2009 18:53
#300022
Just got bike back from shop (78 Kz1000A2 w/ 1075 kit) - having someone a bit wiser than me give a good once over now that I've got all the bits back together & before adding serious miles.

Compression numbers were #1- 210psi, #2- 180psi, #3- 190psi, #4-185psi. The numbers seem good and high but should I be concerned about the differential on #1?

Thanks for your thoughts. Will post pics of the reassembled sled tmrw...g@ddamn am I happy to be neigh-done wrenching and get to the riding part!
78 Kz1075A2
Portland, ME

Please Log in or Create an account to join the conversation.

  • timebomb33
  • timebomb33's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 4277
  • Thanks: 10

Re: Compression Numbers

17 Jun 2009 19:59
#300067
those numbers sound real good if the motor is fairly fresh then don't panic run it for awhile and redo your valve clearances again and the check the compression again.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

Please Log in or Create an account to join the conversation.

  • donthekawguy
  • donthekawguy's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 1911
  • Thanks: 8

Re: Compression Numbers

17 Jun 2009 23:24
#300137
Damn I wish mine were that high. :laugh:
Rathdrum Idaho
1971 Kawasaki g3ss
1972 Yamaha R5 350
1965 Suzuki Hillbilly
1964 Yamaha 125

Please Log in or Create an account to join the conversation.

  • Old Man Rock
  • Old Man Rock's Avatar
  • Offline
  • User
  • User
    Registered
  • Posts: 6071
  • Thanks: 225

Re: Compression Numbers

18 Jun 2009 05:15
#300160
Damn I wish mine were that high
...

Amen to that for those numbers sweet....

OMR
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az

Please Log in or Create an account to join the conversation.

  • Strizzzo
  • Strizzzo's Avatar Topic Author
  • Offline
  • User
  • User
    Registered
  • 78 Kz1000A
  • Posts: 106
  • Thanks: 0

Re: Compression Numbers

18 Jun 2009 06:39
#300183
Thanks Fellers.

FYI - posted pics over on the project forum.
78 Kz1075A2
Portland, ME

Please Log in or Create an account to join the conversation.

Moderators: Street Fighter LTD
Powered by Kunena Forum