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KZ1000E compression, help!
- KZ250LTD
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First question, should the gas have been able to get into the oil like it did? (gas/oil was coming out of the oil breather overflow) Does the fact that it did mean that there are rings gone in one cylinder?
Second question, I was only able to get in at cylinders 1 & 4 with my comp gauge as i didn't take the tank off, 1 & 4 both read about 115-120 psi. Is this an acceptable psi? If I test the other two and get the same result is that a good psi?
Thanks!
79 KZ1000ST
Past:
Many.
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- Nebr_Rex
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2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
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- Patton
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Went to check out a KZ1000st i've been looking at today, didn't get a good chance to check out the engine as the guy had left the vac petcock on prime and flooded the whole engine with gas...First question, should the gas have been able to get into the oil like it did? (gas/oil was coming out of the oil breather overflow) Does the fact that it did mean that there are rings gone in one cylinder?....
Where floatvalves are for whatever reason failing to stop fuel flow into bowl, and overflow circuit where exists isn't allowing excess fuel to escape, the excess fuel rises up into the carb throat and flows both ways, back toward the airbox, and forward toward the engine combustion chamber.
Fuel inside the airbox readily drains directly into the crankcase through the rubber hose connection between airbox and crankcase breather.
Fuel inside the combustion chamber drains down around the pistons and into the crankcase. Which happens regardless of perfect pistons, rings, and bores.
Needless to say, would correct the carbs and change oil and filter before again starting the engine.
Good Luck!
1973 Z1
KZ900 LTD
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- bountyhunter
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That's pretty bad. Make sure you read it with the throttle held wide open.
Second question, I was only able to get in at cylinders 1 & 4 with my comp gauge as i didn't take the tank off, 1 & 4 both read about 115-120 psi. Is this an acceptable psi? If I test the other two and get the same result is that a good psi?
1979 KZ-750 Twin
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