@all Company suggested Spark Plug for YB100 is Bp6hs.
I have Bp6es,Bp6es(Lambi choori walay).
Now Question is if i use Bp7hs.Will it suite while reving high.I mean to say Will it keep engine cool?Coz its 1 grade colder than stock.
Got this FAQ from SparkPlugs.com
Q2. My engine has been tuned/modified, do I need a colder/hotter plug?
A2. You should consult your engine tuner who should be able to advise you on the correct heat range to get the best from your engine. As a general rule, an engine may benefit from a colder grade of plug where modifications made have increased the temperature in the combustion chamber (increased turbo boost, nitrous oxide use, increased compression), colder plug will conduct heat away from the firing tip more quickly and thus help reduce detonation/plug damage.