what is the main difference between QL86C and QL77JC4 ? 6hp Johnson J6RICOB
D dfrants Chief Petty Officer Joined Jul 26, 2008 Messages 404 May 18, 2013 #1 what is the main difference between QL86C and QL77JC4 ? 6hp Johnson J6RICOB
Joe Reeves Supreme Mariner Joined Feb 24, 2002 Messages 13,262 May 18, 2013 #2 Re: different spark plug? The numbers of 77 and 86 indicate the heat range of the spark plug. On that 1985 6hp Johnson, stick to the QL77JC4 plug.
Re: different spark plug? The numbers of 77 and 86 indicate the heat range of the spark plug. On that 1985 6hp Johnson, stick to the QL77JC4 plug.
S seahorse5 Rear Admiral Joined Jan 24, 2002 Messages 4,698 May 18, 2013 #3 Re: different spark plug? dfrants said: what is the main difference between QL86C and QL77JC4 ? 6hp Johnson J6RICOB Click to expand... As Joe said, it is heat-range along with plug design. If you troll or run at low speeds a lot, the QL86C is recommended. It is more foul resistant than the QL77JC4
Re: different spark plug? dfrants said: what is the main difference between QL86C and QL77JC4 ? 6hp Johnson J6RICOB Click to expand... As Joe said, it is heat-range along with plug design. If you troll or run at low speeds a lot, the QL86C is recommended. It is more foul resistant than the QL77JC4
