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'77 KZ650B1 cam seating issue
- Nate77
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1977 KZ650 B1
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- BSKZ650
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77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob
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- rodneyo
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- Nate77
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1-130
2-135
3-0
4-152
I have absolutely no compression in the third cylinder.
I have spark on all 4 plugs, carbs are fine.
The plug on the bad cylinder is wet with gas.
Poured the teaspoon of oil in the plug hole and no change in compression...so, it's a valve issue, huh? Haven't checked clearance yet...that's next on the agenda.
1977 KZ650 B1
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- BSKZ650
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The sad thing is your gonna have to pull the head.
77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob
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- eaglecrash2
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RonKZ650 wrote:
Of course you need to tighten the cam caps, and the cams will settle in place and you'll have your slack. No way the cam can ever lay flat until you fully install. So line the T mark up on your advancer, look at the arrow on the exhaust cam and visualize where it will line up when the bolts are tightened, torque the cam down enough for it to be fully seated, look at your arrow and if you've guessed wrong by a tooth or two, go back and redo. After the exhaust is lined up, count back your 36 teeth and line the intake cam there, torque the intake cam, then press down on the chain between the cams to get enough slack to install the center idler sprocket, turn the engine clockwise slightly to take slack out, then install the tensioner if it's been removed, turn the engine over 1 revolution to the T mark and see both arrows lining up correctly with the head. There is no reason to ever remove the tensioner when removing the cams because on pre 1979 manual tensioner it will stay set right where it was, on 79-up lock the tensioner as instructed in the manual.
'77 kz650,'06 Vulcan 500ltd, '07 ducati 1098s, '03 bmw m3, '85 carrera, '71 911s, '06 s2000, '03 suburban, '76 triumph TR6
sold: '69 honda 250, yr(?) 50cc honda moped, '52 Beechcraft Bonanza
Long Beach, California
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- Patton
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F is "Fire" (as in sparkplug). The plug fires before TDC.
The F mark is used in ignition timing to align the F mark with the permanent timing mark on the engine case while using a strobe-type timing light.
The T mark isn't used for ignition timing.
Good Luck!
1973 Z1
KZ900 LTD
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