OMR: '76 KZ900 Restoration/Modification
- Old Man Rock
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Re: OMR: '76 KZ900 Restoration/Modification
08 May 2012 08:54
No Patton you weren't paying attention... :pinch: Due to under rated ground conductor thus low charging configuration, battery as well was at 11.8 Vdc so coil mod would not do a damn thing... :whistle: :laugh:
Actually due to mechanical relay coils current requirements to activate, I would have had less voltage on the battery due to increased load/current demands...
Actually due to mechanical relay coils current requirements to activate, I would have had less voltage on the battery due to increased load/current demands...
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
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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- Kawickrice
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Re: OMR: '76 KZ900 Restoration/Modification
08 May 2012 09:57
Come on rock do the coil mod. Please, please 
73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL
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- mark1122
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Re: OMR: '76 KZ900 Restoration/Modification
08 May 2012 18:50 - 08 May 2012 18:55
I vote for the new coil mod. 
Attachment 1-s2_0-S0896627302007754-gr8.jpg not found
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
~ ~ ~_@
~ ~ _- \,
~ (k) / (z)
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
~ ~ ~_@
~ ~ _- \,
~ (k) / (z)
Last edit: 08 May 2012 18:55 by mark1122.
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- Patton
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Re: OMR: '76 KZ900 Restoration/Modification
08 May 2012 22:14 - 08 May 2012 22:19mark1122 wrote: I vote for the new coil mod.
Attachment 1-s2_0-S0896627302007754-gr8.jpg not found
1973 Z1
KZ900 LTD
KZ900 LTD
Last edit: 08 May 2012 22:19 by Patton.
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- Old Man Rock
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- Old Man Rock
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Re: OMR: '76 KZ900 Restoration/Modification
07 Apr 2013 12:29 - 07 Apr 2013 22:19
Well the build continues.... :whistle:
Long story short, #3 cam cap broke in half ~ 1000 miles of last build.... New cap in place out for a ride it just didn't feel right, something was wrong... Off with the head and found a bent #3 intake valve.... :pinch: Ordered a new SS valve & off to Larry they go for correct length, thanks mi amigo!
After the engine blew last year, never was comfortable with the original webcams (.265), should have listen to my gut feeling about those cams...
:pinch:
Well with that in mind, said screw it, time for the 1075cc and GPZ- 1100 camshafts....
So here we go.... Again!
Pit Stop Performance: $580 Complete 1075cc MTC piston/ring kit, gaskets, wrist pins & teflon buttons... And this includes boring of the cylinder!!!! You just can't beat the price all....
I was very impressed with their packaging, cylinder bolted to plywood for protection... Overall, very pleased... Thanks Joe Hooper!
For those of you interested, the old base gasket came off cleanly due to during the installation, copper gasket spray... Magical Shit in a Can, is awesome!
Now for the GPZ 1100 cams (measured cams for .375 lift) & APE 2 bolt 30 tooth sprockets (p# ACS900K-2B), you'll need to open up the journals a tad for 360 degree free rotations.
Home made valve tool.... $~ $15... Thanks you HFT!
NOTE Bottom left image: Less stiff spring in #1 intake / exhaust valves, makes degreeing a breeze! Thanks for the tip Larry!!!...
GPZ 1100 journal touch ups... Since the cam cap bolt threads where shit, inserted new Heli-Coil threads! Lapped the valve seats as well...
Cam degreeing... Head decking verified, Degreed Intakes @ 106 and exhausts @ 108.... Life (acceleration) will be good!
Engine is all together, so all I have now is install the exhaust, using a fan start her up for no more than 5 minutes. Let her cool down completely and re-torque... Than off for a ring break in ramp up/ramp down rpm range.
KZ life will be mine again....
OMR
Long story short, #3 cam cap broke in half ~ 1000 miles of last build.... New cap in place out for a ride it just didn't feel right, something was wrong... Off with the head and found a bent #3 intake valve.... :pinch: Ordered a new SS valve & off to Larry they go for correct length, thanks mi amigo!
After the engine blew last year, never was comfortable with the original webcams (.265), should have listen to my gut feeling about those cams...
:pinch:Well with that in mind, said screw it, time for the 1075cc and GPZ- 1100 camshafts....
So here we go.... Again!
Pit Stop Performance: $580 Complete 1075cc MTC piston/ring kit, gaskets, wrist pins & teflon buttons... And this includes boring of the cylinder!!!! You just can't beat the price all....
I was very impressed with their packaging, cylinder bolted to plywood for protection... Overall, very pleased... Thanks Joe Hooper!
For those of you interested, the old base gasket came off cleanly due to during the installation, copper gasket spray... Magical Shit in a Can, is awesome!
Now for the GPZ 1100 cams (measured cams for .375 lift) & APE 2 bolt 30 tooth sprockets (p# ACS900K-2B), you'll need to open up the journals a tad for 360 degree free rotations.
Home made valve tool.... $~ $15... Thanks you HFT!
NOTE Bottom left image: Less stiff spring in #1 intake / exhaust valves, makes degreeing a breeze! Thanks for the tip Larry!!!...
GPZ 1100 journal touch ups... Since the cam cap bolt threads where shit, inserted new Heli-Coil threads! Lapped the valve seats as well...
Cam degreeing... Head decking verified, Degreed Intakes @ 106 and exhausts @ 108.... Life (acceleration) will be good!
Engine is all together, so all I have now is install the exhaust, using a fan start her up for no more than 5 minutes. Let her cool down completely and re-torque... Than off for a ring break in ramp up/ramp down rpm range.
KZ life will be mine again....
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
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: 07 Apr 2013 22:19 by Old Man Rock.
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- wireman
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- bill_wilcox100
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Re: OMR: '76 KZ900 Restoration/Modification
07 Apr 2013 13:14
Hey Rock, I see you're still at it... outstanding project and posting. This is the stuff that makes KZRider a premier site for the non-stupid biker
And yes you are forgiven for you irreverence towards the venerable "Power Coil Modification". :laugh: :laugh: :laugh: ... but I'm still keeping mine. :blush: Hell its the only thing that keeps it going. :whistle: :laugh: :laugh:
Man get that gorgeous rocket ready for the Payson run.
Best of success, Bill
And yes you are forgiven for you irreverence towards the venerable "Power Coil Modification". :laugh: :laugh: :laugh: ... but I'm still keeping mine. :blush: Hell its the only thing that keeps it going. :whistle: :laugh: :laugh:
Man get that gorgeous rocket ready for the Payson run.
Best of success, Bill
1977 KZ650-B1 (Stock)
Upgrades:
- Dyna S Electronic Ignition (DS2-2)
- Dyna 3 Ohm Coils (DC1-1)
- Coil Repowering Mod
- Progressive Springs Front & Rear
- Saddlemen Seat Cover
- New Metallic Red Re-Paint & Repro Badges.
Montreal, Canada
Upgrades:
- Dyna S Electronic Ignition (DS2-2)
- Dyna 3 Ohm Coils (DC1-1)
- Coil Repowering Mod
- Progressive Springs Front & Rear
- Saddlemen Seat Cover
- New Metallic Red Re-Paint & Repro Badges.
Montreal, Canada
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