What spark plug brand?

[Mr-d]

Sorry for clogging up the forum, but its there to be used, isn't it!

NGK BUHW-2
or
Champion L78V

think they are the same price..... but what brand would you go for?

there are no performance differences are there?

[Manos]

NGK seems to be working OK for me. I have used NGK's all the time and never had a problem with them. Try both.

[Wayne Rogers]

Go for the NGK been in the garage trade for over 30 years I would'nt use anything else.

[roohairy]

An outboard mechanic told me to avoid Champion for boats if possible as they corrode more. Don't know if this is true or not, have always used NGK and no problems at all.

[Orange Beeny]

Originally Posted by Manos

Try both.

Good idea - one of each

[Mr-d]

it has champions in it at the moment, we always have champions for lawnmowers and strimmers, i know my brother uses NGK on his RR V8
and i know my dad uses Bosch.

So, NGK it is going to be

[codprawn]

To be honest I don't think one brand is any better than the other - just different plugs suit different engines - as has already been mentioned my Rover V8 engines love NGK but my Alfa twinspark hated them!

[Rogue Wave]

Well if your marinising your Alfa romeo I'd listen to codprawn otherwise listen to those with some experience.

NGK are supplied almost without exception by the local marine centres around here, I guess that could be cos of profit marging but I suspect not.

I have heard from three different outboard mechanics that NGK are the way to go so that's good enough for me. I presently run 6 differnt outboards and today have not had any failure due to the spark plugs. Everything else has failed on em however.

regardless of what you choose pack a spare and a suitable spark plug spanner in your waterproof tub, just in case the sky falls on your head

[Jonny Fuller]

NGK, every time.

[Chris Murray]

I'd go for the NGKs.

I always used them in a 5.7 litre V8 Volvo. They just seemed to work better than the Champions. I also think that the Champions corrode more easily, although they all do, if you throw salt water at them!

Chris.

[Tim M]

When you say that some are better than others, what is "better" apart from that fact they don't corode so quickly?

[Wayne Rogers]

Better spark for a start,Have you ever used a spark plug tester,I have tried brand new plugs of various makes on a tester and the NGK plugs win hands down.Please go and buy a set.Most of us are saying the same thing.

[tue]

We only use NGK's at work unless its a Johnson/evinrude. They seem very keen to only run best on Champions?? Some plugs that Champion do and Johnson/evinrude recommened don't have an NGK equivilant .

[Rogue Wave]

Originally Posted by timofengland

When you say that some are better than others, what is "better" apart from that fact they don't corode so quickly?

Isn't the corrosion issue quite important on a boat as it would decrease the level of conductvity thereby producing less spark and less power. my understanding is that this can cause problems in modern computer controlled engines. Optimax's can come up with an injector error message sometimes as not enough fuel is being burnt off cos of a wimpy spark

[Keith Hart]

Go for NGK - unless you have a diesel...

Keith Hart

[Wayne Rogers]

Nice one Keith.

[Cookee]

We only use NGKs in the XR2 race engine - put a set in yesterday!

[codprawn]

[QUOTE=Rogue Wave] Well if your marinising your Alfa romeo I'd listen to codprawn otherwise listen to those with some experience.

PLENTY of experience with ALL kinds of engine ta very much!

I stick by what I say - different engines like different kinds of plugs - experiment!

[Tim M]

How often should one change one's plugs on a 2 stroke engine?

[codprawn]

Try this - very helpfull site!

http://www.outboardrepairs.com/spark_plugs/