Author Topic: Spark plug type  (Read 231 times)

0 Members and 1 Guest are viewing this topic.

Offline Oldsmokie

  • Back Lane Scratcher
  • Posts: 74
  • Location: Kent
Spark plug type
« on: October 11, 2017, 10:37:04 PM »
Rd250 E. Seem to be getting conflicting info of b8es and b9es for same bike. What's recommended by you guys for stock bike ?
Rd250 dx 'E'

Offline mr sheene

  • Moderators
  • Port Hacker
  • *
  • Posts: 2337
  • Age: 54
  • Location: worksop notts
Re: Spark plug type
« Reply #1 on: October 11, 2017, 11:14:54 PM »
to symplyfy b8es is standard plug b9es is thrashing plug as it runs cooler
2 Strokes rule in worksop notts

Offline 5port

  • Club Member
  • Port Hacker
  • Posts: 6356
Re: Spark plug type
« Reply #2 on: October 12, 2017, 10:49:39 AM »
NGK BR9EIX.  They should run with non resistor caps.  Great wide heat range, resistance to wetting or fouling. Last forever (nearly  :D).

5port
5port

Online murp

  • Club Member
  • Back Lane Scratcher
  • Posts: 256
  • Age: 58
  • Location: grays essex
Re: Spark plug type
« Reply #3 on: October 12, 2017, 02:04:55 PM »
Ive always wondered why you need a resistor in the spark plug when the resistance between the 2 electrodes
Is so high anyway
Sent from my HUAWEI GRA-L09 using Tapatalk 2


Offline 5port

  • Club Member
  • Port Hacker
  • Posts: 6356
Re: Spark plug type
« Reply #4 on: October 12, 2017, 07:03:14 PM »
Ive always wondered why you need a resistor in the spark plug when the resistance between the 2 electrodes
Is so high anyway
Sent from my HUAWEI GRA-L09 using Tapatalk 2

You don't, on a basic ignition.  However, it has become a common way to reduce electrical interference.  Also, modern ignition systems have some complex functions that even require very specific plugs and caps.

5port
5port