Ted Williams 7.5 Spark Plug Number

[Tiger Boat]

I have been lurking around here for a while and finally joined Today. I have a Ted Williams 7.5 Model # 21758881. It has a Max Power Spark Plug # 4051 in it right now. I have had no luck cross refrencing this to a Champion or anything else. Can anyone please help me with what Plug I should run in there.
Thanks, Doug

 

[steelespike]

Re: Ted Williams 7.5 Spark Plug Number

Welcome,
Motor is a 73 built by Eska.it uses a J13Y Champion or AC 45S both these numbers may be superceded but should cross easily..Motors after 76 use a
RJ13Y.

 

[Tiger Boat]

Re: Ted Williams 7.5 Spark Plug Number

Thank You for the welcome & the information.
Doug

 

[ashaffer]

Re: Ted Williams 7.5 Spark Plug Number

what is the gap supposed to be for this plug?

 

[mrcrabs]

Re: Ted Williams 7.5 Spark Plug Number

RJ12YC or RJ14YC most gap @ .35

RJ12YC is my choice if I can find them

 

[TAMMYsBOAT]

Re: Ted Williams 7.5 Spark Plug Number

Hello, I have a Ted Williams 217-5889-0 boat motor. I am trying to find what is the correct spark plug for it. I ordered a manual, but I am a woman and impatient for it to arrive :facepalm: Thank you for your help! Tammy

 

[mrcrabs]

Re: Ted Williams 7.5 Spark Plug Number

read up Tammy, the answer was the last post in this thread before you hijacked it
and welcome to Iboats,

 

[TAMMYsBOAT]

Re: Ted Williams 7.5 Spark Plug Number

read up Tammy, the answer was the last post in this thread before you hijacked it
and welcome to Iboats,

So sorry Mr Crab ~ my eyes are bad and didn't see the post above and didn't know how to post a question. I will, indeed read up so I do not "hijack" - my bad, I'ma newbee. Tammy

 

[mrcrabs]

Re: Ted Williams 7.5 Spark Plug Number

anybody from north east Tn can't be all bad
welcome aboard Tammy