TRX250R.ORG

Workshop => Engine and Bottom End => Topic started by: zcarlson12 on July 28, 2013, 07:02:05 PM

Title: Spark Plug
Post by: zcarlson12 on July 28, 2013, 07:02:05 PM

What are you guys running? I did some research already but it seems like everyone uses either the b8es or the b9es. My motor is a ESR 310 if that matters. Thanks.

Title: Spark Plug
Post by: fearlessfred on July 28, 2013, 07:13:32 PM

runnin the sandunes I allway run 9s.really suppose to use the ground strap to determine the heatrange .more horse power ,colder plug

Title: Spark Plug
Post by: Pumashine on July 28, 2013, 07:23:15 PM

Quote from: fearlessfred;6237

runnin the sandunes I allway run 9s.really suppose to use the ground strap to determine the heatrange .more horse power ,colder plug

This is true but if you are jetted rich the 9's will foul plugs more often. I'm lazy and use the 8

Title: Spark Plug
Post by: zcarlson12 on July 28, 2013, 08:25:00 PM

Thanks guys. I'll be doing mostly woods and mx.

Title: Spark Plug
Post by: jcs003 on July 29, 2013, 01:44:49 PM

with the cr ignition its difficult to foul plugs, even if rich.  so it would be the 9 with the cr250r ignition.  with stock its safer to use an 8 in my experience.

john

Title: Spark Plug
Post by: Tbone07 on July 29, 2013, 03:52:38 PM

BR9EIX is what i'm running. Works great, no fouled plugs as of right now.

Title: Spark Plug
Post by: sameltoe on July 29, 2013, 04:02:05 PM

Quote from: Tbone07;6335

BR9EIX is what i'm running. Works great, no fouled plugs as of right now.

Mr.PC2000
That's the only plug we can use I believe.

Title: Spark Plug
Post by: PORTED R on July 30, 2013, 03:57:43 AM

No good luck with 9's,but I jet rich
I always use 8's

Title: Spark Plug
Post by: mx250r91 on July 30, 2013, 05:08:48 AM

BR8EG, also this is the specd plug for 00-01' CR250s

Title: Spark Plug
Post by: zcarlson12 on July 30, 2013, 08:21:39 AM

Thanks for the info guys. Ordered a bunch of 8's yesterday. I looked at what plug I was using and it was a 9 so I guess I'll see which works better.

Title: Spark Plug
Post by: Tbone07 on July 30, 2013, 09:23:17 AM

Quote from: sameltoe;6336

Mr.PC2000
That's the only plug we can use I believe.

We must be speshul :excitement: