Spark plug 245?

[pickwickangler]

Whats the best ngk plug to run in a 2.5 245 merc?

[tlwjkw]

Buhw.....

[pickwickangler]

What about BU8H?

[boilerdawg]

What about BU8H?


thats what im runnin in mine...is it the best??? i dunno.

[tlwjkw]

Either one works. W's better for a stem winder carb motor.......T

[lowlifeAE21]

what about NGK BR8HS?

[Jay Smith]

The Mercury manual suggest NGK BUHW for your engine..I find them to work well in carbed and analog EFI High Performance engines and the NGK BUZHW has worked well in the Digital ECUed engines...

good luck,
Jay

[lowlifeAE21]

The Mercury manual suggest NGK BUHW for your engine..I find them to work well in carbed and analog EFI High Performance engines and the NGK BUZHW has worked well in the Digital ECUed engines...

good luck,
Jay

Jay, I just put BR8HS in my 245carbs I have not run them yet but should i change them to BUHW also whats the difference's in between them?

brad

[pickwickangler]

Jay, I just put BR8HS in my 245carbs I have not run them yet but should i change them to BUHW also whats the difference's in between them?
I bought a set of them also so I could do some plug readin while gettin this thing jetted in, afterward I will swap back over to a plug without the eletrode.

[lowlifeAE21]

ya but whats the actual difference between them other then the eletrode?

[tlwjkw]

"R" higher cost resistor plug! Used with computer controlled motors. Quiets down tha ignition noise. Mainly for digital stuff..........

[Jay Smith]

The NGK BR8HS is also a good plug for that application.

Hey guys these engines ain't a space ship you can cross plugs from the stock plug number and run many configurations and brands on the market, I'd just stick with a direct cross so that the heat range won't damage the engine..They run in price from high as a kite to dirt cheap, and MANY work just fine.

good luck,

[KIRCHNER]

"R" higher cost resistor plug! Used with computer controlled motors. Quiets down tha ignition noise. Mainly for digital stuff.......... strange i just had to buy res. plugs for my new acu 2.49 each my old analog plugs were over 5. each! auto zone analog plugs were induction plugs for early laser boxes 87-88.

[tlwjkw]

strange i just had to buy res. plugs for my new acu 2.49 each my old analog plugs were over 5. each! auto zone analog plugs were induction plugs for early laser boxes 87-88.

was a few years ago but I don't remember ever payin' over 20 bucks for 6 of tha surface gap (bu8h, buhw) ngk's?.. that's all I ever ran in anything non digital.. even ran 'em in tha early digital stuff without problem.....

[KIRCHNER]

was a few years ago but I don't remember ever payin' over 20 bucks for 6 of tha surface gap (bu8h, buhw) ngk's?.. that's all I ever ran in anything non digital.. even ran 'em in tha early digital stuff without problem.....
they were on a 87 a1 ecu early dont remember # remember paying too much. they were not the problem besides. figures.

[tlwjkw]

justa 'bout "every V6" carb or efi well inta tha 90's had 8h's or hw's……. think 'bout '95 up horn motors had buhzw's but production motors still had 8h's for a few more years...

[Merc 2.5]

What bout a 05 carb 2.5 200? Plug? Bu8h?

[tlwjkw]

think 'lectronic motors went to BPZ8HS 10'S...……..

[eli]

Buhw is cold plug br9hs is about even heat range To the 9 br8hs is 1 step hotter from what I read