R1250 Spark Plugs

General discussion of the BMW R1200RT/R1250RT
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EasyRider
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R1250 Spark Plugs

Post by EasyRider »

Has anyone found where to get the OEM spark plugs for the 1250 at a sensible price.
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Re: R1250 Spark Plugs

Post by David. »

BMW don't make spark plugs, they are made by NGK. What is a sensible price.
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Re: R1250 Spark Plugs

Post by EasyRider »

Best price i have found so far is £29.00 for 2
And these are the NGK LMAR8AI-10 spark plugs
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Re: R1250 Spark Plugs

Post by David. »

£14.50 each is about the going rate.
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Re: R1250 Spark Plugs

Post by EasyRider »

thank you David
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Re: R1250 Spark Plugs

Post by Doctor T »

I use NGK Iridium plugs. Haven't had to adjust them in 4 years. Costs a bit extra but gives a cleaner spark and lasts longer.
Trust me I am a retired Doctor and lecturer at Oxford University of Structural and Mechanical/Electrical engineering.
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Re: R1250 Spark Plugs

Post by David. »

Doctor T wrote: Mon Feb 24, 2025 12:48 pmI use NGK Iridium plugs. Cost a bit extra but last longer.
This thread would seem to suggest that Iridium spark plugs are more cost effective, viewtopic.php?t=3633
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Re: R1250 Spark Plugs

Post by EasyRider »

I have brought the NGK LMAR8AI-10 94319 Laser Iridium Spark Plug for £29 posted.
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Re: R1250 Spark Plugs

Post by Doctor T »

You have to be careful where you buy them. There are a lot of fake ones for sale. Even large motor parts dealers have been scammed.
Look on YT to compare If yours is a FAKE or not. I bought mine from a SAAB service center that I have trusted for years
Trust me I am a retired Doctor and lecturer at Oxford University of Structural and Mechanical/Electrical engineering.
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Re: R1250 Spark Plugs

Post by scunny12 »

Doctor T wrote: Thu Feb 27, 2025 2:19 pm You have to be careful where you buy them. There are a lot of fake ones for sale. Even large motor parts dealers have been scammed.
Look on YT to compare If yours is a FAKE or not. I bought mine from a SAAB service center that I have trusted for years
Saab went bust 10 months after I bought one, or is that a Saab jet you get serviced? :lol:
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Re: R1250 Spark Plugs

Post by Doctor T »

Got then from Hagstrom Saab in Norfolk
Trust me I am a retired Doctor and lecturer at Oxford University of Structural and Mechanical/Electrical engineering.
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Re: R1250 Spark Plugs

Post by David. »

Doctor T wrote: Mon Feb 24, 2025 12:48 pmI use NGK Iridium plugs. Haven't had to adjust them in 4 years. Cost a bit extra but lasts longer.
AFAIK, the recommended service interval for the standard plugs is 24,000 miles. At what mileage do you change the Iridium plugs.
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Re: R1250 Spark Plugs

Post by EasyRider »

Its 12,000 miles on the 1250 that they say change the spark plugs.

NKG say that they will last 40-50k miles. So if you can get 24k out of them, then there worth buying.
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Re: R1250 Spark Plugs

Post by David. »

The 24K is for Doctor T's 2007, 1200 Hexhead.
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Re: R1250 Spark Plugs

Post by Stu »

EasyRider wrote: Sun Mar 02, 2025 9:47 am Its 12,000 miles on the 1250 that they say change the spark plugs.

NKG say that they will last 40-50k miles. So if you can get 24k out of them, then there worth buying.
I think I will be replacing mine with iridiums next as I have found that at 12k they are well past their best and was getting the odd miss fire

I have never known a bike eat plugs like this one does!

I will still replace them every 12k due to how much wear was on the standard plugs
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