Author Topic: BR5ES Plugs (Read 2681 times)

The_Steve_Man · « **on:** January 10, 2014, 07:21:32 PM »

Is there anybody using br5es plugs? We used to run them and seemed to give our bikes more power. I guess because they are such a hot plug.
I was at the parts store getting plugs and thought about these.

atvmxr · « **Reply #1 on:** January 10, 2014, 09:12:23 PM »

I would maybe use a 7 , definitely not a 5

Pumashine · « **Reply #2 on:** January 10, 2014, 09:43:46 PM »

Quote from: atvmxr;21976

I would maybe use a 7 , definitely not a 5

A 7 if you were jetted extremely rich!

fast350r · « **Reply #3 on:** January 10, 2014, 10:16:46 PM »

I thought you only ran that hot of a plug if your motor is toast , low compression . I use b8es plugs

fearlessfred · « **Reply #4 on:** January 11, 2014, 12:57:47 AM »

the plug only needs to be hot enough to not foul when jetted proper.I run a 9 in the dunes running wide open most of the time and have used a 10 for hill racing

ledperformance · « **Reply #5 on:** January 12, 2014, 12:48:55 AM »

B7's work great most of the time and give more accurate plug reading. I always use B8's on customers bikes. I have never looked at a B9 that wasn't too cold. We raced MX and TT nationals with B8's. (and won) We were running 230 - 245 lbs of compression. We never had detonation problems.

fearlessfred · « **Reply #6 on:** January 12, 2014, 03:17:13 PM »

Quote from: ledperformance;22035

B7's work great most of the time and give more accurate plug reading. I always use B8's on customers bikes. I have never looked at a B9 that wasn't too cold. We raced MX and TT nationals with B8's. (and won) We were running 230 - 245 lbs of compression. We never had detonation problems.

are you referring to reading the ground strap