Post by olyman on Jan 23, 2020 17:14:16 GMT
oly_man
What is the right spark plug for a 640? TNT engine to be specific. I know our charts on this site say an A7 is what's cross references a Bosch M280T31.. but I've seen other references saying it should be an A8
TIA
Doo640ER
I've been using A-8/AB-8 plugs in my 72 Nordic 640 for years. But as you know, this is not the same mill as the TNT engine. I would try the A-8 first since it is a colder plug, then maybe try the A-7s if necessary?
oly_man
Ya that's what I was thinking too. Last thing I wanna do is roast a slug first time I wind her up. I won't be able to deploy the parachute lol.
What is the right spark plug for a 640? TNT engine to be specific. I know our charts on this site say an A7 is what's cross references a Bosch M280T31.. but I've seen other references saying it should be an A8
TIA
Doo640ER
I've been using A-8/AB-8 plugs in my 72 Nordic 640 for years. But as you know, this is not the same mill as the TNT engine. I would try the A-8 first since it is a colder plug, then maybe try the A-7s if necessary?
oly_man
Ya that's what I was thinking too. Last thing I wanna do is roast a slug first time I wind her up. I won't be able to deploy the parachute lol.
