Bosch Spark Plugs

[England-Kev]

I had to change my plugs yesterday, the bike was only running on one pot, luckily I had a spare set with me, but this seems to happen a lot using Bosch plugs, do any of you have this problem, as I seem to have to fit a new set at least twice a year?

 

[fayeslane]

Have not liked Bosch plugs for years, they always seem to be a very tight fit and I stripped a plug hole trying to remove one. Have had no troubles with NGK.

 

[newguy]

Also on NGK, copper antiseize on the threads and no probs. I did run bosch super 4's on my R80G/s without any hassles.

 

[fayeslane]

Copper anti sieze lives on the bench and is constantly used. It's in the top 3 magic potions used in my workshop

 

[ELIMINATOR]

Very tight fit? I can't imagine a company like Bosch having quality issues with oversize threads.

 

[fayeslane]

Very tight fit? I can't imagine a company like Bosch having quality issues with oversize threads.

Not oversize, exacting tolerances unlike the sloppy NGKs