87 GPX400R wrong spark plug

[hornetmike]

I've think I have put the wrong plugs in my GPX 400 R , I've put in DR9EA rather than DPR9EA-9, it runs fine but could I be causing a problem ? Haven't tried it under load as haven't had the weeks back yet.
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[hornetmike]

just read the difference in the GAP 0.7 and 0.9 what difference does it make ?
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[CaNsA]

You might get probs when the engine warms up and you are giving it some beans.

You are gonna need to set the correct gap. Thats what the 9 denotes, but as you have mentioned you need a .7mm gap otherwise the plug might not spark. no-one wants to be running on less cylinders than they actually have.

The "P" stand for "Projected Insulator Type"
The resistance is the same
Heat Value is the same
Thread reach is the same along with the thread size.

Its a 50/50 thing really IMO but im sure some-one else will come along with proper reasons for


https://nukeitfromorbit.com/ce.d0a13ec0a277d02e9feceead02117aa7.nuke,j.jpg

[temeluchus]

i suspect the bike will run fine, the two plugs are the same size and heat range.

even with the incorrect gap wont be a killer and is easy to adjust.
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Some shite cruiser. Now with guns and FREEDOM!

[hornetmike]

how did you know the details ?
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87 Honda CG 125 - 97 ER5 - SR 50 -81 Z250- 96 CBR 600 F- 94 GPX600R 88- GPX 400R- 87 GS 125 - 2006 Honda CB600F- 2003 ER5 - Honda CBF 1000 2009 - Honda CBR 600 RR 2011
Current BMW R1200GS 2010

[CaNsA]

Of?

[temeluchus]