Gt175

[Ranger481v15]

I have a 1990 gt175. It has 512227 coils on it now. The book calls for 582508 to be on it. Is there a difference in these coils. I can’t find anything on the 512227 coils anywhere. Is there a difference in them?

[omcforever]

Is the motor running ok? Same coils. You will be ok.

[Ranger481v15]

It doesn’t want to get on plane. I think that may be in the fuel though, or the timing. Not entirely sure. It idles fine, jumps a little while trying to get on plane and eventually does get on plane.

[omcforever]

When it wont get on plane, push your choke in and see if it picks up. If it does, fuel related. If not, electrical/something else. Did it start recently or always been like that? Post model number as well.

[Ranger481v15]

I have tried pushing the choke in when it won’t get on plane. Model number is j175stlese

[omcforever]

I have tried pushing the choke in when it won’t get on plane. Model number is j175stlese

I would do a compression check and check link and sync(pick up timing and max timing are critical on crossflows/insure rubber roller is on middle carb throttle arm).

[omcforever]

https://www.boats.net/catalog/johnso...ntake-manifold

Item #35

Do all 6 plugs look the same? What color are they? Champion QL77JC4 plugs gapped at .030?

[omcforever]

.

[omcforever]

Invest in a real OMC service and repair manual.
http://www.bbcboards.net/showthread.php?t=638013

[Ranger481v15]

Compression numbers are all good. Between 95 and 110.

[ChampioNman]

512227 that part does not exist must be production run number.. look at www.shop2.evinrude.com to verify.

[omcforever]

512227 that part does not exist must be production run number.. look at www.shop2.evinrude.com to verify.

Think your right Fred. I have a couple with the right part numbers and that number stamped on the top edge.

[Ranger481v15]

8CF29B35-BF36-4B88-B639-DF74CA626887.jpeg
how do the adjustments look on here to y’all.