BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

I need new secondary (Bottom) sparks plugs. I have Bosch YR6LDE now. What is a good replacement???

Thanks

Try

http://www.r1150r.net/board/viewtopic.php?f=2&t=13194

Cheers

FWIW... the NGK Iridiums from that list have a 1.1mm gap (the -11 designation). I tried them and they made my R run like poo......
The gap spec is .8mm, and the regular Iridiums from NGK come that way out of the box.....

I'm using the NGK Iridiums and my bike is running flawlessly. Odd.

Have just replaced the Bosch secondary with the NGK Iridium due to the bosch running very black. Had the plug foul out about two weeks ago, cleaned ,regapped put im back in and fouled out on me last week after a hi speed run for about ten miles. Replaced with new Ngk's today one step hotter(7). Have not ridden yet but I hope that takes care of issue.

adg44 wrote:I'm using the NGK Iridiums and my bike is running flawlessly. Odd.

So am I....just not the -11 part #'s.

csalt wrote:Have just replaced the Bosch secondary with the NGK Iridium due to the bosch running very black. Had the plug foul out about two weeks ago, cleaned ,regapped put im back in and fouled out on me last week after a hi speed run for about ten miles. Replaced with new Ngk's today one step hotter(7). Have not ridden yet but I hope that takes care of issue.

Worked for me....I used the same heat range as the main plug....NGK 7. The Secondary plug stays a lot cleaner, altho not as clean as the Primary.

One thing to mention, the heat ranges/rating of bosch plugs is different than that of NGK plugs.


So according to this chart, the 6's that are from Bosch and used as the secondary plug seem to be a heat range or two hotter than the Iridiums listed here (and what I am using).

- Anthony

Strange....
When I pulled the plugs at ~4500mi, I did not like the look of the OE Bosch YR6LDE.... too fouled-looking for me.
My Haynes manual says you can use that or NGK DCPR8EKC...so I went one heat range hotter with the NGK Iridium- DCPR7EI-X.
They do look a lot less fouled, but not as good as the primary. Maybe I'll try -6 next time....

My bike is R1150R' 2004 (two spark plugs per cylinder).
I have two books describing my bike (Clymer, M503-3 and Haynes, 3466) and they both recommend the next spark plugs:

- Primary: NGK BKR7EKC
- Secondary: NGK DCPR8EKC

But when I checked NGK web (http://www.ngksparkplugs.com), I see that NGK recommends the next type of plugs for BMW R1150R' 2004:

- Primary: NGK BKR7EKC-N (stock number: 2095; Plug gar: 0.032)
- Secondary: NGK DCPR6E (stock number: 3481; Plug gap: 0.028)

The secondary spark plug is different.

So, I'm lost. Whom should I believe? Anyone knows the answer?

Kind Regards,
Apostle

My R1150R is fitted with a set of Brisk DOR14IR. There are simply fantastic. They are expensive, about $30.00 for the pair, but outstanding Getey-Up, and will last a good 12,000 miles.

I have a 2002 which I just put some NGK 3922's into. Cost me less than $5 for the pair and the bike is running simply fantastic.