Sparkplugs- Accel v.s. HD v.s. NGK v.s. Champion

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#11

02-12-2010, 09:24 AM

wuzfuz

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I've been using Autolites in my shovel since the first time they were changed out in '82.
No problems ever, I remember guys using champions having problems, but usually if you have plug problems it's an indication of other issues.
WUZFUZ

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#12

02-12-2010, 01:55 PM

lightweight bob

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HD plugs

Quote:

Originally Posted by Ironkidzsled

Thanks for the responses. Yeah I'm currently running accel plugs but I've been a big fan of NGK for awhile now. I use NGK in my dirt bike (CR250 two stroke).. I like how the HD plugs reach deeper into the combustion chamber but if they aint got some fire that won't mean ****. If you are right about toyota being the manufacturer of them HD plugs? I'm prolly ganna have to try em! I DROVE THE **** outta my ol' 4x4 toyota sr5 pickup for the better part of 13 years and honestly you couldn't kill the damn thing! Ran like a top all the way up to the day I sold it (just last year @ 249,999 miles on it) only thing I ever replaced on it was the U joint & two front shocks. Wish I had never sold that truck...

Denso / Toyota makes Accel plugs while Champion makes HD factory plugs. Plugs
pictured are short reach - must be an old Harley - while long reach plugs Denso
makes are the same length as HD. I use Denso - dual ground electrode platinum.

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#13

02-15-2010, 12:24 PM

gunnut1

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If I do this real quick I may beat Pinion to it! The key thing is to have a plug that is not too long and gets hit by a piston and that it is the proper heat range.......... hot enough to stay half way clean, but not so hot that it burns away or causes detonation. Right Pinion?

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#14

02-15-2010, 12:39 PM

nvsteve

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Have used all the plugs mentioned and never had a problem with any of them.
Generally use Autolites or NGK.

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#15

02-15-2010, 04:15 PM

speedracer2008

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What plug or part number for Autolites and NGK... THanks..

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#16

02-15-2010, 05:39 PM

Bigbird

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I know I have had outstanding results with NGK in all my 2 strokes. Boat, jetski, dirt bikes, snowmobiles, atv's. I've run NGK's in my last 3 Harleys with no problem. 2 twin cams and 1 EVO. I'll probally run them in the Ironhead too.

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