The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: weasel01 on July 08, 2009, 10:44:57 PM

Title: Spark plugs ?
Post by: weasel01 on July 08, 2009, 10:44:57 PM

What spark plugs are you guys running in your R65?

Title: Re: Spark plugs ?
Post by: DeeG on July 09, 2009, 01:09:27 AM

Bosch W 225 T 30  

Which is now Bosch W 5 D (possibly add R for resistor)

When I picked up mine, W 175 T30, which is now WR7D, for the R45, the guy at the parts counter was kind enough to 'splain the evolution of the Bosch numbering system

Title: Re: Spark plugs ?
Post by: Bob_Roller on July 09, 2009, 08:01:54 AM

It's recommended that you use non-resistor plugs, as the spark plug cap already has 5,000 ohms resistance .

Title: Re: Spark plugs ?
Post by: montmil on July 09, 2009, 08:16:47 AM

I run NGK BP7ES in both the '81 and '83 R65s.   Monte

Title: Re: Spark plugs ?
Post by: weasel01 on July 09, 2009, 07:27:12 PM

I had those NGK in my bike when I got it and really wanted to use bosch
but got lost in the part number trail.

I went ahead and ordered the same NGK's it had because I know it's right but wondered what a common favorite might be?

Title: Re: Spark plugs ?
Post by: MrRiden on July 09, 2009, 07:44:30 PM

Ditto for the NGK BP7ES. Seems the most often quoted. Also have used the Autolite 52 with no complaints.

Title: Re: Spark plugs ?
Post by: weasel01 on July 09, 2009, 07:55:45 PM

When I search for Bosch w6d (which is obsolete) It's always listed on lawn mower supply sites... someone here said these bikes are almost agricultural...makes me chuckle.

Title: Re: Spark plugs ?
Post by: montmil on July 09, 2009, 08:03:50 PM

Reminds me of that comic web vid, "Hitler gets a BMW". "If I'd wanted a f***ing farm implement, I would have bought one!"

Monte

Title: Re: Spark plugs ?
Post by: Motu on July 10, 2009, 12:57:50 AM

I have Bosch Plus Fours - WR78.