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mx125 which spark plug?

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rich16
Derestricted Danger



Joined: 05 Jul 2009
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PostPosted: 18:19 - 24 Jul 2009    Post subject: mx125 which spark plug? Reply with quote
the cdi looks to be derestricted (theres silicunt over one end of it) and the plug which was in when i brought it was br8es, ironicly the same as my 1050 seadoo jetski. is this the right plug?

thanks, andy
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rx125r
L Plate Warrior



Joined: 21 Aug 2009
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PostPosted: 14:47 - 21 Aug 2009    Post subject: Reply with quote
hi there for a de restricted bike as long as you have a power valve and the cdi is de restricted you should be using a br9 or a br10 i have an aprilia rx 125 which is basically the older version off your bike but off road and is using a br9 spark plug. But i have no restrictions
regards jordan
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 20:55 - 21 Aug 2009    Post subject: Reply with quote
Hi

The CDI restriction doesn't affect peak power and is irrelevant to the spark plug. It only affects it from about 5K to 6K.

You want an 8 on a restricted bike (ie peak power restricted, no power valve fitted) and a 10 on a derestricted bike. Normally it shoud be an EG rather than an ES.

All the best

Keith
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