Trying to figure out what my engine is please look

[J_Hess]

Was told to find the freeze plug and that the serial number would be on it since the plate on the cover is gone. I located the freeze plug and these are the numbers: R-178 & 7029 (which are on the plug itself) and 510885 (which is below the plug on the surrounding area) All that the former owner told me was that it was a 1977 100 HP+ Johnson engine. Please let me know if you know anything as I am searching for a manual so that I can get it running. Since I do not know anything about boats and this is my first one ever. Please help Thank you all for looking.

 

[rwise]

Re: Trying to figure out what my engine is please look

J<br />how about posting a picture or two of it, maybe someone will id it from that.

 

[J_Hess]

Re: Trying to figure out what my engine is please look

As luck has it went out to check my mail and when I was walking through my garage a small little plate caught my eye that was located on the (I am not sure what it is called) part that you bolt to the transom. Gave me my info. Model number is: 100ESL71C Serial number is: J3506337. If anyone knows where I can locate a manual for this particular engine please let me know. Thanks

 

[madbanchee]

Re: Trying to figure out what my engine is please look

try www.outboardbooks.com (www.kencook.com - same company). They will have it for sure, they are the registered reproduction company for many businesses. They are located right here in Wisconsin! - Aren't I lucky!?!

 

[bubbakat]

Re: Trying to figure out what my engine is please look

100ESL71 100 1971 <br /><br />plugs champion QL77JC4 gap at 30 or L76V surface gap plugs<br />fuel mix 50:1