1978? 85 H.P. Evinrude

fire831

Petty Officer 1st Class
Joined
Aug 26, 2002
Messages
373
I just bought a 1978 Procraft bass boat and it has a 85 H.P. Evinrude 1517cc with FirePower ignition, Mod.#85899C, Ser.# J0001254. I need help with a year for sure and oil mix ratio. Any other info about this motor will be appreciated. I'm in the process of getting a service manual but general info will help so I can get ready to start this baby up. It has been setting for awhile so I know I will need to drain all old gas, change filters ect.ect. Thanks for any help.
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: 1978? 85 H.P. Evinrude

That's a '78 and the oil mix is 50:1
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 1978? 85 H.P. Evinrude

Yup. That's a 1978 'Rude 85 you have there.

Fuel mix is 50:1
 

fire831

Petty Officer 1st Class
Joined
Aug 26, 2002
Messages
373
Re: 1978? 85 H.P. Evinrude

Thanks alot guy's. How about plug gap so i can set my new plugs. Thanks again.
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 1978? 85 H.P. Evinrude

Gap your Champion plugs at .030", Fire.

If they aren't Champions, change 'em.
 

fire831

Petty Officer 1st Class
Joined
Aug 26, 2002
Messages
373
Re: 1978? 85 H.P. Evinrude

Thanks a million. As soon as it get's spring here in Indiana, I'm gonna get started on this project.
 

fire831

Petty Officer 1st Class
Joined
Aug 26, 2002
Messages
373
Re: 1978? 85 H.P. Evinrude

Well I got this motor started, and noticed water seeping from around the heads and the cover between the heads. It had plenty of water comming from the pee hole. I'm gonna order a manual this week but is it very hard to change these gaskets and do I risk any damage running this motor with the water leaking? Thanks.
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: 1978? 85 H.P. Evinrude

#1 No, it's not hard.

#2 If water is leaking into the head, you risk pretty serious damage.
 

fire831

Petty Officer 1st Class
Joined
Aug 26, 2002
Messages
373
Re: 1978? 85 H.P. Evinrude

Thanks, I'm gonna get the manual ordered tomorrow. Do you use gaskets from NAPA or should I go with a dealer?
 

dsinger

Chief Petty Officer
Joined
Aug 6, 2004
Messages
424
Re: 1978? 85 H.P. Evinrude

318662 OMC part number NAPA wont have it.
 
Top