Re: Bosch Platinum Cross Reference?On Dec 3, 9:29 am, "Albrecht via MotorcycleKB,com " <u33665@uwe> wrote:
> T Shadow wrote:
> > http :// www .boschautoparts,com /NR/rdonlyres/C77B3446-232B-4AEC-AFA9-AD...
>
> Thanks. That was educational. I know what the Bosch equivalent of theNGK
> plugs in my Yamaha is, but I don't know if Bosch makes a platinum or iridium
> *motorcycle* spark plug.
>
> In order to use a plug that fits both cars and motorcycles, I have to be able
> to screw the end cap off.
>
> The Bosch equivalent of anNGKDP8EA-9 is WSR7E, and I would expect to find a
> WSR7E with a "P" suffix if Bosch makes a platinum version, but I don't.
>
> > http :// www .boschautoparts,com /Resources/TechnicalResources/
>
> The Bosch site is frustrating because it won't let me search for any vehicle
> except a car.
>
>
>
> >I've always preferred Champion. No one but Honda recommendedNGKand ND
> >makes plugs for my ST1100.
>
> NGKcame out with copper core spark plugs thirty years ago, and the copper
> core is more heat stable than the old Champion steel core plugs. I could do
> about two or three full throttle runs with Champions installed and my
> Suzuki's engine would start shooting ducks (boom! boom!) out the exhaust, and
> that could be blamed on overheating the electrode, but, once the engine
> cooled down, the spark plugs were never the same, and performance was
> restored by going back toNGK's.
>
> Nippon Denso heat ranges are always three times what theNGKheat ranges are,
> so if I need an ND equivalent of anNGK"8" heat range, I look for an ND "24"
> heat range.
>
> Nippon Denso seems to have beatenNGKto the concept of expanding the flame
> kernel by having a
> U-shaped channel in the ground electrode, and that made the ND's "Hot-U"
> plugs operate like they were half a heat range hotter.
>
> ThenNGKcame out with the gold-palladium spark plug that was supposed to be
> like "a poor man's CDI" because the tips would get so hot they would burn
> clean. That didn't work so well on a two stroke because of the lubricating
> oil burning onto the insulator nose and shorting out the relatively low
> "high" voltage from the small ignition coils on Japanese motorcycles.
>
> >At $7 a pop (Honda dealer or Internet after shipping) buying something cheaper at Wal-Mart
> >sounds good. I lucked out couple of year ago and got a 10 pack for $20 at a end of season sale. Said
> >they mismarked them but sold them anyway.
>
> I get annoyed when the $tealer$hip tries to charge me $2.50 for a copper coreNGKplug. I remember when I could buy American-made spark plugs for $0.65
> each, but that was 30 years ago.
>
> If you do have to pay $7.00 each for iridium or platinum plugs, the up side
> is that they will last three times as long.
>
>
>
> >Almost as irritating as having to make adapters from the old headlamp bulbs
> >to keep from Paying Hondas exorbitant prices. Eicho makes them and shows
> >them in their catalog but no one else sells them retail. AFAIK the bulbs are
> >used in the ST, VFR and GW. Either Honda is controlling their sale or
> >someone is missing an opportunity. $25 vs. ~$8 X2.
>
> There are two factors in the pricing of electrical/electronic parts. One is
> protectionist tariffs and the other is the fact that motorcycle distributors
> and $tealer$hip$ operate like drug dealers: the price of the part gets
> doubled at each point in the pyramidal operation.
>
> --
> Message posted via MotorcycleKB,com http :// www .motorcyclekb,com /Uwe/Forums.aspx/tech/200712/1
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