Akstraw Posted March 18, 2018 Share Posted March 18, 2018 Can somebody tell me what spark plugs work well in a 145? Thanks! Andrew Link to comment Share on other sites More sharing options...
odyssey Posted March 19, 2018 Share Posted March 19, 2018 Champion 516 Link to comment Share on other sites More sharing options...
hook Posted March 19, 2018 Share Posted March 19, 2018 Just in case you happen upon some new old stock, here's some of the older numbers: Champion; #7, #C-7, & #D-16. AC; #86 or C86. Bosch; #M95T5 and Autolite; #BT8 Bill Link to comment Share on other sites More sharing options...
Akstraw Posted March 19, 2018 Author Share Posted March 19, 2018 Thank you very much! Andrew Link to comment Share on other sites More sharing options...
John_Mereness Posted March 21, 2018 Share Posted March 21, 2018 Champion C-7 as a new car which I believe interchanges with a modern Champion D-16 or D16 Link to comment Share on other sites More sharing options...
147 Franklin Airman Posted April 17, 2018 Share Posted April 17, 2018 I have found that Champion D21 burn a little hotter and cleaner Link to comment Share on other sites More sharing options...
hook Posted April 18, 2018 Share Posted April 18, 2018 Sometimes hotter plugs can help in performance and/or burning off that excess oil that may be fouling the plugs. However, the late Dutch Kern found that using hot plugs can result in cracks developing between the two valve seats. His recommendation was to set the plugs at .035 which he said increased fuel mileage and cleaner burning. Just a thought and suggestion from the past! Bill 1 Link to comment Share on other sites More sharing options...
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