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Need help with Jets im kinda lost lol
- Slyde77
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18 Jun 2016 13:17 #731881
by Slyde77
Need help with Jets im kinda lost lol was created by Slyde77
Hey all..this is what i have
77 Kz1000 A1 stock motor about 23k on it
brand new Keihin CR 29's pilot jet 60 main 118
Vance and Hines 4-1 megaphone ( i used reg baffle/comp baffle and no baffle still having the same problem)
Pods
Dyna coils and Dyna S Electronic Ignition
Now here is what is going on....Idle is good and it revs pretty good, but once there is a load on it from 2500-6000 RPMS its just weakkk, feels like maybe its to much fuel and its loading up...But once it hits 6k and higher its like a dam turbo kits in lol and it takes off. Now im kinda lost on what to do. there is no pop on decel. So do i have to lower the jet size??...right now im running the air screws at about 3/4 out...any more and it will pop while idling here and there not loud just these little pops. So yes any help would be great ty all
77 Kz1000 A1 stock motor about 23k on it
brand new Keihin CR 29's pilot jet 60 main 118
Vance and Hines 4-1 megaphone ( i used reg baffle/comp baffle and no baffle still having the same problem)
Pods
Dyna coils and Dyna S Electronic Ignition
Now here is what is going on....Idle is good and it revs pretty good, but once there is a load on it from 2500-6000 RPMS its just weakkk, feels like maybe its to much fuel and its loading up...But once it hits 6k and higher its like a dam turbo kits in lol and it takes off. Now im kinda lost on what to do. there is no pop on decel. So do i have to lower the jet size??...right now im running the air screws at about 3/4 out...any more and it will pop while idling here and there not loud just these little pops. So yes any help would be great ty all
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- SWest
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- 10 22 2014
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18 Jun 2016 13:22 #731884
by SWest
Replied by SWest on topic Need help with Jets im kinda lost lol
Pics of plugs?
Steve
Steve
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- Slyde77
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18 Jun 2016 14:10 #731889
by Slyde77
Ok ill take a pic of the plugs tomorrow... in the house getting dinner going lol
Replied by Slyde77 on topic Need help with Jets im kinda lost lol
swest wrote: Pics of plugs?
Steve
Ok ill take a pic of the plugs tomorrow... in the house getting dinner going lol
The following user(s) said Thank You: SWest
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- Old Man Rock
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19 Jun 2016 07:05 #731979
by Old Man Rock
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
Replied by Old Man Rock on topic Need help with Jets im kinda lost lol
Cr's are a little finicky but once you dial them in... response is awesome, All worth the learning curve on these beauties.
Questions...
Elevation where you live/ride....?
Ambient outside temps, humidity etc...?
You running Pods or stock air box...?
Ignition timing set correctly (timing light)...?
Valve clearances to spec...?
Possibly these will help you diagnose your mid to high rpm issue....
OMR
Questions...
Elevation where you live/ride....?
Ambient outside temps, humidity etc...?
You running Pods or stock air box...?
Ignition timing set correctly (timing light)...?
Valve clearances to spec...?
Possibly these will help you diagnose your mid to high rpm issue....
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
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- Old Man Rock
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19 Jun 2016 07:12 - 19 Jun 2016 07:13 #731981
by Old Man Rock
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
Replied by Old Man Rock on topic Need help with Jets im kinda lost lol
Phoenix AZ elevation ~ 1200 feet
Heat index average other than 3 summer months (100-115F) changes where 70-90F
NOTE: CR's shipped are extremely RICH from factory....
Main Jet @ 112
Slow Jet @ 52
YY9 needle
Heat index average other than 3 summer months (100-115F) changes where 70-90F
NOTE: CR's shipped are extremely RICH from factory....
Main Jet @ 112
Slow Jet @ 52
YY9 needle
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
Last edit: 19 Jun 2016 07:13 by Old Man Rock.
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