Best Spark Plug?
Posted: Tue Jan 17, 2012 6:57 am
by nottoooldyet
Can you tell me what is the recommended spark plug for a 2006 and 2009 CRF250R? The bikes are both used to race. The 2006 is stock with the exception of a Wiseco piston. The 2009 has a Hot Rods crank and cam and a Wiseco piston.
Posted: Tue Jan 17, 2012 11:15 am
by crfsonly
This is the recommended spark plug:
CRF250R'05-09 - NGK R0409B-8 Spark Plug
http://www.crfsonly.com/catalog/product ... ts_id/1511
Ken
can you substitute a regular plug for an iridium?
Posted: Thu Nov 01, 2012 9:44 am
by jonbuchli
I have an 05 crf450r, use it for desert and trail riding in colorado. can I substitute a regular plug for the more expensive iridium?