L77jc4 / l77j4

[Skagit Hunter]

L77JC4 / L77J4
What is the difference? What is the (C)
Both motors use this plug gap .030
1984 E6RCRM
1984 E25RLCRD...It has elec and rope start.

 

[bktheking]

Re: L77jc4 / l77j4

Have a look

http://www.championsparkplugs.com/sparkplug411_manufacturer.asp?manufacturerID=2

C is copper plus design

 

[Vic.S]

Re: L77jc4 / l77j4

I think you will find that L77J4 is also obsolete!

BTW

QL77JC4 has inductive suppression and is the currently recommended plug for both 1984 6hp and 25 hp

generally plug gaps have been revised from 0.040 " ( 1.0mm) to 0.030" ( 0.7-0.8mm)

 

[Skagit Hunter]

Re: L77jc4 / l77j4

Thanks