Spark plug 3 gt
- Thread starter dachley
- Start date
sunny
Supercharged
- Joined
- Jul 17, 2021
- Messages
- 397
- Ride
- Rocket 3R LIMITED EDITION
dachley
Standard Bore
- Joined
- Dec 14, 2023
- Messages
- 4
- Ride
- Rocket 3 gt
Are they stock number 91909.last year I replaced all my stock spark plugs with
zenbiker
Zenbiker
Just WHY!!
lotus
.040 Over
Just upgraded to the Iridium's at 24K miles. Have not had a chance to run it since it's 25 deg with sand and gravel on the road ;-(
My main driver was I don't want to do this ever again on this bike. Although, after removing the standard plug after 24K miles, they visually
looked new with gaps where they should be (.035"). However, just because it looks fine, that doesn't mean they're fine. There could be a
breakdown in insulating materials. Since Triumph recommends changing at 20K miles using standard plugs, there must be a good reason,
other than being a revenue generator for the dealers. Although, I am suspicious at times.
Price Difference?
Iridium - LMAR8BI-9 = $18.49 ( O'Rielly)
Standard - LMAR8-9 = $ 7.99 (O'Rielly)
Why? Way more expensive so it's got to be better!
Why? According to marketing material.....
Positive benefits of investing in iridium spark plugs?
My main driver was I don't want to do this ever again on this bike. Although, after removing the standard plug after 24K miles, they visually
looked new with gaps where they should be (.035"). However, just because it looks fine, that doesn't mean they're fine. There could be a
breakdown in insulating materials. Since Triumph recommends changing at 20K miles using standard plugs, there must be a good reason,
other than being a revenue generator for the dealers. Although, I am suspicious at times.
Price Difference?
Iridium - LMAR8BI-9 = $18.49 ( O'Rielly)
Standard - LMAR8-9 = $ 7.99 (O'Rielly)
Why? Way more expensive so it's got to be better!
Why? According to marketing material.....
Positive benefits of investing in iridium spark plugs?
- Better electrical resistance – iridium spark plugs don’t burn out as quickly as copper spark plugs, giving them a longer working lifespan and greater efficiency.
- Iridium is a harder metal than copper, so can take more punishment before it starts to deteriorate. This contributes to a longer service life and reduces the risk of premature failure.
- Iridium spark plugs are capable of working at higher temperatures, as iridium has an impressive melting point of 2,426°C, as opposed to 1,085°C for copper.
- Better ignition quality – iridium spark plugs concentrate the electric spark, making it quicker to generate combustion with less expenditure of energy. Each ignition from an iridium spark plug is more efficient than a normal spark plug, and places less wear and tear on the component.
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TURBO200R4
stand up straight and grab the world by the a$$
I used iridium plugs in my durango 100,000 miles they were perfect instead of 0.035 they they were 0.039
lost 0.004 in 100,000 miles
should be taken out every once and a while to make sure that they don't seize up.
lost 0.004 in 100,000 miles
should be taken out every once and a while to make sure that they don't seize up.
sunny
Supercharged
- Joined
- Jul 17, 2021
- Messages
- 397
- Ride
- Rocket 3R LIMITED EDITION
NGK-LMAR8BI-9 (91909)
OEM spark plug is too cheap in my opinion, its also being used on lawn mower, ATV and etc, and I was doing servicing anyways so I changed it.
Iridium spark plugs are around for quite a bit though there new tech on the market which is better than Iridium but they dont make same specs yet for our rocket replacement Ruthenium HX High Ignitability spark plugs, I have written them several emails about making exact same as NGK-LMAR8BI-9 (91909) but in Ruthenium.
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