plugs

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bagmaker
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plugs

Post by bagmaker » Tue Oct 23, 2012 10:54 pm

can someone advise which are the best plugs to use?
I expect there is something more updated that mr yamaha specified last century made from unobtainium - that would be best.
part numbers, preferebly for australian supplier

thanks in advance
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bubbaad
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Re: plugs

Post by bubbaad » Tue Oct 23, 2012 11:49 pm

Plasticine is good, can't even hear the wife when I have it in......Can be a bugger to get out though :)
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Stu99
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Re: plugs

Post by Stu99 » Wed Oct 24, 2012 11:53 am

Iridium plugs.
See NGK link.
http://www.ngksparkplugs.com/products/motorcycles/
Most decent Yamaha dealers or bike shops should have them.


NGK Iridium Spark Plug DPR8EIX-9 Yamaha TRX850 96-99
Double check me though in case of typos.
Last edited by Stu99 on Wed Oct 24, 2012 11:59 am, edited 1 time in total.
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bagmaker
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Re: plugs

Post by bagmaker » Wed Oct 24, 2012 11:57 am

thanks Stu but I cant get a number off that list, only says stock plug for a TDM -DPR9EA-9 and this is not iridium.
Will any iridium plug do -i am assuming they have different heats and threads
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Stu99
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Re: plugs

Post by Stu99 » Wed Oct 24, 2012 12:00 pm

Try

NGK Iridium Spark Plug DPR8EIX-9 Yamaha TRX850 96-99
Double check me though in case of typos.
It must be true, I read it on the internet.
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Stu99
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Re: plugs

Post by Stu99 » Wed Oct 24, 2012 12:03 pm

I've got an engine out. I'll just go pull a plug to double check for you mate.
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Stu99
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Re: plugs

Post by Stu99 » Wed Oct 24, 2012 12:15 pm

Yep, that's the one. DPR8EIX-9
It must be true, I read it on the internet.
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alextrx850
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Re: plugs

Post by alextrx850 » Wed Oct 24, 2012 7:33 pm

Yep, the iridiums make a good bang....set the gaps to between .8 and .9 of a millimeter.
Pricey sods though..might set you back 20 or so dollars...
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Skybone
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Re: plugs

Post by Skybone » Wed Oct 24, 2012 8:26 pm

Bought some of those Iridium's (DPR8EIX9) for the Speed Triple last year, ended up with big running problems, took them out & refitted the standard DPR8EA9's, and it's run sweet as a nut since...

Might try them in the TRX at some point.
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bagmaker
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Re: plugs

Post by bagmaker » Wed Oct 24, 2012 10:09 pm

Thanks again Stu and Alex, I will try them and report back
Probably dont need the plasticene yet, although at my age a hairy arse and that "incident" at the footy club now precludes me from white underpants. :roll:
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Stu99
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Re: plugs

Post by Stu99 » Thu Oct 25, 2012 2:31 am

alextrx850 wrote:Yep, the iridiums make a good bang....set the gaps to between .8 and .9 of a millimeter.
Pricey sods though..might set you back 20 or so dollars...
Careful with that as iridiums are very fragile and easily damaged. Several mechanics I know have always said just use them as they are out of the box as unlike standard plugs the gap will be fine. Gaps can be set if you wish but it is not woth the risk of damage.
I've never had an issue following that advise.
No offence Alex, like a lot of things, probably two schools of thoughts on that.
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alextrx850
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Re: plugs

Post by alextrx850 » Thu Oct 25, 2012 4:21 am

No wuckens Stu..actually the plug comes with the correct gap..most usually will as the plug is made for the intended machine use.

The iridiums are a fine electrode plug and care is needed....so dont let the kids play with em 8-[
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