What is the spark plug gap for a Craftsman lawn mower?
Flathead Engine Spark Plugs & Gaps
| Replacement Part Type | Replacement Spark Plug Options by Briggs & Stratton Part Number | Spark Plug Gap |
|---|---|---|
| “Surefire” RJ2YXLE in Craftsman Smooth Start (MRS) lawn mower | 591040 | .030” |
How do I choose a spark plug heat range?
According to Champion Spark Plugs, for normally aspirated, gasoline-fueled engines, a good rule of thumb is to go about one heat range colder for each full point in compression ratio increase from 9:1 through about 12.5:1, and two heat ranges colder for each point increase between 12.5:1 and 14.5:1.
What do spark plug heat ranges mean?
The heat rating is a measure of the amount of heat dissipation. The heat range of a spark plug is the range in which the plug works well thermally. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.
Whats better iridium or platinum?
Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.
What’s the difference between BPR5ES and BPR6ES?
The BPR5ES will run hotter than the BPR6ES. Running a BPR6ES in an engine designed for a BPR5ES may cause premature fouling, and running a BPR5ES in an engine designed for a BPR6ES may cause detonation.
What does NGK BPR5ES fit?
Ngk BPR5ES NGK spark plug fits Honda GX & GC engines.
Can I use BPR6ES instead of BPR5ES?
In terms of fittiment, the plugs are identical (i.e. the BPR6ES will fit properly in any engine that uses the BPR5ES and vice versa). BPRxES is an NGK part number (which makes sense, Honda contracts out their “factory” plugs to NGK). The BPR5ES will run hotter than the BPR6ES.
What is the difference between NGK BPR4ES and BPR5ES?
What’s the difference between a BPR4ES-11 and a BPR4ES? Answer: The difference between the standard BPR5ES and the BPR5ES-11 is the terminal type. The standard BPR5ES has a removable nut style terminal and the BPR5ES-11 has a solid type terminal.
What is the difference between rc12yc and rn12yc?
Re: My tractor takes a rc12yc plug can I use a rn12yc… Yes, the only difference between these two plugs is the size of the wrench it takes. If the socket fits into the plug well you can use this plug.