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Author Topic: yz 250 sparkplugs  (Read 9261 times)

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Offline DESERTFOX19

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Re: yz 250 sparkplugs
« Reply #15 on: July 14, 2011, 10:10:18 PM »
 They are 6.99 form this place. Don't know what shipping would be.

http://www.motosport.com/dirtbike/product/NGK-SPARK-PLUG-BR8EG/?id=114457
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Offline ACMX

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Re: yz 250 sparkplugs
« Reply #16 on: July 15, 2011, 12:01:18 AM »
I just switched from a 9 to an 8... Can that burn a 'hole' in the top of my piston?
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Offline fabbo

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Re: yz 250 sparkplugs
« Reply #17 on: July 15, 2011, 03:33:58 AM »
Thankyou everyone for your help and information fantastic i know it is only a small thing but guys thankyou.

 My engine is right now out of the bike and i am freshening it up putting in new bearings etc and thetop end of the engine is going to eric gorr soon to turn it into a 300cc I will split the cases and replace all bearings etc so i will post photos when all finished.

I dont know if i should go crazy and make it look like project 144 or save up for a new berg 300 I'll have to speak to the minister of war and finance on that one. ha ha married men know what I mean.
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Offline ktm150rippa

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Re: yz 250 sparkplugs
« Reply #18 on: July 15, 2011, 08:02:24 AM »
I've never had any problems with the 8. Do you know what the yamaha oem plug is?
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Offline yo_marc

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Re: yz 250 sparkplugs
« Reply #19 on: July 20, 2011, 01:46:41 PM »
Quote from: ACMX on July 15, 2011, 12:01:18 AM
I just switched from a 9 to an 8... Can that burn a 'hole' in the top of my piston?

I would think it would do that 'only' if hot enough to cause detonation.

Even with all the racket a two-stroke makes, you should be able to hear detonation.  I certainly do on my bike..

Basically, if the bike is running good, and the plug is not burned white,.. its my opinion you're likely good :)
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Offline IndigoRacer

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Re: yz 250 sparkplugs
« Reply #20 on: July 20, 2011, 05:07:46 PM »
I know how it is to change spark plugs often, I have to change mine every few races. I did want to let everyone know I see alot of prices being thrown around about this plug.

With your TSM discount the BR8EG plug will be $4.75 each. The BR8EIX would be $9.00 each. Shipping will still only be $6.95 unless the total order goes over $99, then it will be free shipping.

I hope this helps you out until you can get to the bottom of the problem.
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Offline MXLord327

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Re: yz 250 sparkplugs
« Reply #21 on: July 21, 2011, 12:17:42 PM »
My YZ250 is the most finicky bike I have ever had regarding spark plugs.  My jetting isn't perfect, but it's close.  I can only run a BR8EGV, if I go to the cheaper BR8ES is blubbers badly.  I tried the super expesive Iridium, and it cuts out at WOT.
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