I recently purchased a Brisk performance spark plug for my S40. The manufacturer claims it improves throttle response, acceleration, power, and fuel economy. When I mentioned this to my local bike mechanic (who worked for Suzuki for several years), he smirked and said "you're not going to get any more power from a spark plug". What do the experts here think?

apache snow-FSO wrote on 04/11/13 at 19:18:37:


+1

While some plugs may exhibit a hotter spark or a different pattern to the spark,they will not in any way,increase horsepower. There may be a slight advantage due to a more complete burn of the air/fuel mix but that is highly questionable.

I hope they didn't get you for more than $5 US for that "special performance spark plug".

I got some cow magnets you tape to your fuel line garrinteed to improve
my wallet

jgrandmont wrote on 04/11/13 at 19:08:46:



That was your first clue to not buy it. Don't make the same mistake again with any product.

How much extended life do you need? I pulled the plug on mine at its 11K check, and if I hadn't already bought a new one I'd have put the old one back. The electrodes were sharp-edged, the gap was correct, and the plug was the right color. At that rate, I'd think it would be good for at least another 20K, or more.

Unless the current plug has the wrong gap, covered with crud, or has a broken insulator, you will not see any difference in performance. I always though of my S40 as just a big Briggs lawn mower engine and the best thing I could do was to keep the filter clean, plug gapped, blade sharp and balanced, and the fuel fresh. Except for the blade, all apply to the Savage....hmmm a blade modification. Could come in handy in certain situations.

Good hunting