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Expert
84 Answers
- Posted on Apr 11, 2011
Re: What is the correct spark plug for a 2005 yz125?
Hope this information helps these are Denso Plugs
YAMAHA
YZ125
YEAR
2004-1999
ENGINE
125 cc
APPLICATION INFORMATION
STANDARD STK#
4049
STANDARD PLUG#
W27ESR-V
IRIDIUM POWER STK#
5317
IRIDIUM POWER PLUG#
IW27
IRIDIUM RACING STK#
5714
IRIDIUM RACING PLUG#
IW01-27
GAP
0.024
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