Author Topic: No Spark  (Read 2524 times)

Offline nigeldtr

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Re: No Spark
« Reply #15 on: 22.05. 2011 10:29 »
Does anyone have any experience with the special plugs like in the BR7EIX iridium? From what I can read, this should be better for the spark and burning off the fuel (being careful here :-)). Not surprising the B8ES fouls quickly, it is probably far too "cold". With large std electrode, poor grade fuel, it probably can't get hot enough during the start and warm up phase to burn itself clean and dry? Interesting theory now just need to buy some new plugs and  put it to the test!

Regards

Nigel
1951 Golden Flash (engine now rebuilt) 1953 M21 a pain to start and 1961 GF that is turning into a black hole!

Online BSA_54A10

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Re: No Spark
« Reply #16 on: 22.05. 2011 11:28 »
The Notrun riders down here swear by the iridium plugs, then again getting Notruns to run reliability is a full time job regardless of the plugs used and Notruns are at a bit of a higher state of tune than most of the pre unit A series.
Bike Beesa
Trevor

Online Triton Thrasher

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Re: No Spark
« Reply #17 on: 22.05. 2011 13:24 »
Once I get the new caps I will have another go. 


Don't wait. Just attach the copper core of the leads to the plug terminals.

Online chaterlea25

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Re: No Spark
« Reply #18 on: 22.05. 2011 21:28 »
HI Nigel,
To the best of my knowledge, on  "BR7EIX iridium"
the R means resistor!!  see here
http://www.ngksparkplugs.com/docs/tech/partnumberkey.pdf

therefore not suitable for mag ignition!!

HTH
John O R
1961 Super Rocket
1963 RGS (ongoing)

Offline Hubie

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Re: No Spark
« Reply #19 on: 22.05. 2011 23:16 »
I tried running irridium plugs in the a10 and my super meteor.  I changed them back after less than 100 miles.
Cheers,
Hubie
1959 BSA Golden Flash
1956 Royal Enfield Super Meteor
1955 Royal Enfield 350 Bullet
2007 Harley Davidson Sportster 1200 Custom

The early bird gets the worm, but the second mouse get's the cheese!

Online Triton Thrasher

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Re: No Spark
« Reply #20 on: 23.05. 2011 07:48 »
Denso make iridium plugs without the resistor.