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  #1  
Old 12-30-2010, 03:59 PM
DANNY18SC DANNY18SC is offline
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Default Re: johnson commercial 155

89 motor. the guy said the VRO was disabled, if it isnt and i get it, i will disable it and mix my gas. do you think this wee be too much weight for my 18? i looked it up on NADA, says it weight 400 lbs. being a low comression motor, what #s do i need to look for on a comp gauge?
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  #2  
Old 12-30-2010, 07:13 PM
DonV DonV is offline
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Default Re: johnson commercial 155

I just sold a boat with a 1989 150hp Johnson "cross-fire" motor (not a looper). I've had four of these type engines and they never broke, just wore out. I thought the 88hp, 155hp commercial marketed motors were mix your oil only type engines. That way, no worry of VRO failures.
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  #3  
Old 12-30-2010, 07:31 PM
Old'sCool Old'sCool is offline
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Default Re: johnson commercial 155

My '90 88 SPL's were mix your own.
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  #4  
Old 12-31-2010, 11:40 AM
pelican pelican is offline
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Default Re: johnson commercial 155

Quote:
I just sold a boat with a 1989 150hp Johnson "cross-fire" motor (not a looper). I've had four of these type engines and they never broke, just wore out. I thought the 88hp, 155hp commercial marketed motors were mix your oil only type engines. That way, no worry of VRO failures.
you're correct...the spl's and commercial engines,had no oil injection...

also,"low compression engines" ? it's a 2 stroke,the compession ,ratio is much less than a 4 stroke engine...that comment concerning "it's a low compression engine",it's incorrect...
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  #5  
Old 12-31-2010, 01:30 PM
workinpr0gress workinpr0gress is offline
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Default Re: johnson commercial 155

They don't run a different cylinder head on those than other crossflows?
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  #6  
Old 01-01-2011, 02:35 PM
CaptMick CaptMick is offline
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Default Re: johnson commercial 155

Quote:
89 motor. the guy said the VRO was disabled, if it isnt and i get it, i will disable it and mix my gas. do you think this wee be too much weight for my 18? i looked it up on NADA, says it weight 400 lbs. being a low comression motor, what #s do i need to look for on a comp gauge?
For what its worth I have a 417 pound 150 Merc on my 18 without any changes to scuppers or deck and I am fine. Hull is an 85.
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