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| Which spark plug https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=4448 |
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| Author: | 50+ [ Sun Apr 12, 2015 10:21 am ] |
| Post subject: | Which spark plug |
Hi, I have a stock 1974 Honda CR 250 Elsinore. The prescribed spark plug is NGK B9EV, but I was wondering if anybody have some experience from using other NGK spark plugs. For instance BR9EIX, BP9ES or also warmer 7 or 8 plugs (cold weather or "cruising" as opposed to racing speed). Rolf |
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| Author: | Ratmuss [ Mon Apr 13, 2015 6:36 pm ] |
| Post subject: | Re: Which spark plug |
Rolf, I have super good luck with just the B9ES. You can run the EG or EV, but I believe those are just the tang type (material and shape). I would just stick with the less expensive. Don't use a BP, "P" stands for projected- its a longer inner electrode- they can stick down too far. I have ran the BR plugs before such as a BR9ES- it adds a resistor for less electrical interference, Nothing your cool dirt bike needs. Cheers, Matt |
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