Most common spark plugs?

[Mycamaro_68]

Hey guys, I am wanting to get a stock pile of spark plugs and am wanting to know what some of the more common ones are. I am a big fan of NGK and would like to stick with them. I know BPM7A is fairly common, are there any others that would be handy to have around? Thanks in advance for the help.

 

[DSS]

A 7a will fit 95% of saws. It's the only one I keep.

 

[Mycamaro_68]

Thanks oh great bovine!

 

[Adirondackstihl]

Bosch WSR6F = BPMR7A

I prefer the NGK for no reason other than STIHL sending out a batch of bad Bosch plugs on some 362's years ago and wrecking top ends

 

[DSS]

Bosch WSR6F = BPMR7A

I prefer the NGK for no reason other than STIHL sending out a batch of bad Bosch plugs on some 362's years ago and wrecking top ends

Plus you rarely wear pants

 

[Mycamaro_68]

Thanks Adirondackstihl! Next question then would be, what is the difference between a BPM7A and a BPMR7A?

 

[Adirondackstihl]

Plus you rarely wear pants

Troof

 

[Adirondackstihl]

Thanks Adirondackstihl! Next question then would be, what is the difference between a BPM7A and a BPMR7A?

Resistor

 

[Mycamaro_68]

Troof

Huh..... you look a little different than I pictured you.

 

[Mycamaro_68]

Resistor

Is the resistor necessary for some saws and not for others? Would it be detrimental to install a resistor spark plug in a saw that doesn't need it? Or vice-versa?

 

[Adirondackstihl]

Is the resistor necessary for some saws and not for others? Would it be detrimental to install a resistor spark plug in a saw that doesn't need it? Or vice-versa?

It's for electronic interference.
Won't hurt nothing to run a non resistor plug

 

[Mycamaro_68]

Thanks for the info guys!