2002 johnson 150's from 1992's

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hydrasports

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will new johnson 150's need new controls,guages etc... ? or will they all fit from my 1992 johnson 150's thank you
 
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hydrasports

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Re: 2002 johnson 150's from 1992's

soory,not correct info, basicaly im buying 2 new leftover 1998 175 johnson ocean pros,will these engines be able to use my controls and guages from my 1992 johnson 150's ? thank you
 
clanton

clanton

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Re: 2002 johnson 150's from 1992's

The shifting and throttle is the same, the harness from control is different, but OMC had an adapter for that, or you can cut the wires and hard wire it. The later model harness has delco packard connections instead of the large red connector, and more tan wires for the system check tach. Your tach and other guages should work.
 
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seahorse5

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Re: 2002 johnson 150's from 1992's

Clanton is correct, but it is recommended to get the wiring adapter because you will also need the 2" 4-lite warning gauge for the SystemCheck or a new tach with the lites in it. The oil tank, or the pickup assembly, will have to be replaced because of different electronics internally.
 
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hydrasports

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Re: 2002 johnson 150's from 1992's

Thanks gentleman that is of great help,are those adaptors common and easy to order? I will not use the vro on the new engines and mix 50:1 myself,do i still need the system check guage? thanks again
 
clanton

clanton

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Re: 2002 johnson 150's from 1992's

No, with VRO disconnected only three sensors remaining, 2 overheat 1 fuel restriction, old tach should work fine, self test on old horn should also work. After you get the engines running, I would remove powerpack cover and check for arcing between the ignition coil and steel plate that covers the pack, I see a lot of this. Id it is just i cylinder, the engine will drop 300 rpms each time it misfires.
 
clanton

clanton

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Re: 2002 johnson 150's from 1992's

Seahorse do you know of information letter or SB that covers the change in the remote tank sensor. I seen something, but cant find the info. Am I missing this in the service manual? While you are looking SB number for the sparkplug changes.<br /><br />Thanks<br />Clanton
 
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seahorse5

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Re: 2002 johnson 150's from 1992's

In '96 when they went to the SystemCheck warning, the tank sender became an on-off switch and the electronics are now in the SystemCheck gauge assembly. The Parts and Accessory Catalog shows the adapters needed. You will also need an adapter if you do not use the 4lite SystemCheck gauge and driver (horn).
 
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Beernutz

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Re: 2002 johnson 150's from 1992's

Clanton, what's the "fix" for the arcing problem? Is it limited to the '02 models, or could I experience it on my '01 150?
 
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hydrasports

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Re: 2002 johnson 150's from 1992's

wow you guys are the best !! seahorse I will need an adapter if I dont use the system check? This adaptor will able me to use my warning horns I currently have? clanton great info on the coil arcing I also would like to hear if theres a remedy. thank you very much <br /><br />ps, my first post is confusing sorry, the new engines (leftovers) are 1998 175 ocean pros, just in case someone misunderstood them as 2002's
 
clanton

clanton

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Re: 2002 johnson 150's from 1992's

Beernutz, I have seen it on V4/V6 1992 thru 2000 engines, I just replaced the coil, I think it is a quailty control problem on the coil insulation. It could also be caused by too much sparkplug gap and checking spark by pulling the boot off with engine running, both cause high voltage at coil.
 
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seahorse5

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Re: 2002 johnson 150's from 1992's

Clanton,<br /><br />The QL78YC sparkplug recommendation for all looper motors 40hp and above came out in 1995. The OMC Parts and Accessory Manuals and '96 and later engine parts manuals have shown these plugs. <br /><br />Capt. Manny,<br /><br />By all means use a System Check gauge, either the 2" or the tach with the warning lites.
 
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