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Valve clearance
- rayellis
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I checked valve clearance today did not quite make specs. 3 of the valves are .07mm clearance and not in spec range of .08mm to .18mm. I have had low compression problems and this was one things I have not checked.
Should I go ahead and change the shims? Is it possible to move some shims around so to make all valves in line with specs?
Thanks
Ray:woohoo:
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- timebomb33
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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
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- rayellis
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I have tried everything that I can to fix short of complete tear down. I need to try another compression test but if I have low compression I might just pull top end and take a look.The numbers below is what I remember.
cyl 1 120psi
cyl 2 115psi
cyl 3 45psi
cyl 4 90psi
Thanks
Ray
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- Jeff.Saunders
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Usually with a bent valve, you have valve clearance extremely wide (as the valve is not returning fully.
I've never had that low a compression with worn rings, so you may want to go back through and verify the numbers. If you have a leakdown tester, they help tremendously in isolating the issue.
www.z1enterprises.com
Z1 Ent on Facebook,
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- timebomb33
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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
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- TeK9iNe
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- What did you do!?!
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Re-Build the top end
You will re-LOVE your bike! :laugh:
Good luck!
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
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- Old Man Rock
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Which bike is this for?
Spec on KZ900 for sure, 1000 I think is .05-.10mm....
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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- rayellis
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- TeK9iNe
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".08mm to .18mm"....
Which bike is this for?
Spec on KZ900 for sure, 1000 I think is .05-.10mm....
My 1000 is .05 - .15mm
Motorcycle Shop Owner/Operator
79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors
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- rayellis
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Thanks
Ray
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- chiefgto
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- War was just a game we played when we were kids.
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1979 LTD1000 B3 Chassis.
1980 LTD1000 Engine.
MTC 1075 10.5-1 pistons, 3 angle valve job with mild port and polish. V&H 4 into 1 pipe. Mikuni BS34 Carbs. Dyna 2000 ignition.
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- bill_wilcox100
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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
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