11 replies to this topic

[sandy92]

Hi guys,
there seems to be alot of mixed ideas on the internet about what the gap size for a NGK BP6ES spark plug should be for a mini 1000?
hope someone can shed some light
cheers

[jaydee]

Standard gap as they come out of the box.
Gap incresing is necessary only if you carried igniton mods like hi voltage coil and electronic ignition, so you can benefit of a stronger spark though the wider gap.

[sandy92]

thanks jaydee

[dklawson]

Standard as they come out of the box???

Always check the gap. NGK does sell some pre-gapped plugs but they usually have a suffix after the 5-digit part number to indicate the gap.

With a points ignition system, start with a spark plug gap of 0.025"

[racingbob]

with points we used to set 25 thou

electronic i have on mine 32 thou

[Chance]

Whats that in metric for us younger folk?? 0.8 ish??

[Surfbluegarage]

25 thou to start with for points 32 thou for mini electronic and i set 35 thou for metro electronic 65dm4 dizzy ones.

[Cooperman]

Whats that in metric for us younger folk?? 0.8 ish??

If you are into Minis then you must be into inch dimensions really. You also need Imperial size spanners and sockets as metric ones are simply not right for the job.

[86mayfair]

Whats that in metric for us younger folk?? 0.8 ish??

If you are into Minis then you must be into inch dimensions really. You also need Imperial size spanners and sockets as metric ones are simply not right for the job.

Unless you have an 86 like me, and you need both!!! It's so annoying

[racingbob]

being old at not into metric as far as tappet setting etc

i completly messed up about 6 months ago

set tappets with metric 15 thou was 15 metric

went out for a spin seemed ok but something was bugging me

and telling me to check my tappets again !!

and low and behold. good job only went for shortish spin

[jaydee]

being old at not into metric as far as tappet setting etc

i completly messed up about 6 months ago

set tappets with metric 15 thou was 15 metric

went out for a spin seemed ok but something was bugging me

and telling me to check my tappets again !!

and low and behold. good job only went for shortish spin

Been there, done that.

[surfblue63]

Whats that in metric for us younger folk?? 0.8 ish??

If you are into Minis then you must be into inch dimensions really. You also need Imperial size spanners and sockets as metric ones are simply not right for the job.

Later Minis have a lot of metric stuff on them so it's best to have both metric and imperial tools to hand.

Whats that in metric for us younger folk?? 0.8 ish??

25 thou = 0.64mm

32 thou = 0.81mm