Spark Plug Life

[TeamRealtreeHD]

I was talking with a guy today... he wasn't from around here but came up, as alot of out of towners do, to climb the hills.

 

He runs B9ES or something close. But it isn't the standard B8ES that most runm.

 

I run B8ES due to the engine builder recommending to do so. But what I found interesting, and thought I would run past you guys, is that he claimed the B9ES last longer.

 

I won't switch, because I have my bike running spot on with jetting, spark, etc. And I get plugs pretty cheap from a local business. So I buy them in bulk and gap them to my specs when I am tinkering in the garage. So changing, or needing plugs, is never a problem.

 

But I thought I would run the different plugs and their lifespan past you guys.

[Misssppelllleddd]

I have run the B9ES before and they didn't last as long because they are a cooler spark plug. I didn't have my jetting set up for them but they fouled up faster. I have also run the B7ES which I did not use for very long because of pre-ignition. It's all about how you have your bike set up really.

[jbooker82]

Yea the B9ES is a colder plug so it the plug's operating temp is going to be lower wich will cause them to foul easier because it isnt buring off or self cleaning the oil as good due to the lower operating temperature.

 

BR8ES or B8ES for Gasoline

BR9ES or B9ES for Methanol

 

josh

[TeamRealtreeHD]

Yea the B9ES is a colder plug so it the plug's operating temp is going to be lower wich will cause them to foul easier because it isnt buring off or self cleaning the oil as good due to the lower operating temperature.

 

BR8ES or B8ES for Gasoline

BR9ES or B9ES for Methanol

 

josh

 

That clears it up pretty good guys. I kn ew the operating temps were a little different, but this guy was talking about all kinds of stuff that just didn't make sense, like how the b8 and b9 are made for durability, etc. I never heard of such stuff.

 

If I was better with words, I could remember the exact quotes he said and really amuse you guys like I was sitting there having him tell me stuff.

 

Tried telling me how his motor builder does this with ports, and how his shit runs good and he never lost to another banshee, etc.

 

I took hom down to the paved road where we race leading into the riding area and I smoked his ass by at least 8-10 bikes. Then another guy I ride with all the time has a banshee ported by a local shop here that runs good. He beat him by several bike lengths too.

 

Then this guy thought he was a good rider, we took him to a set of hillclimbs that we fly across sideways, and need to curl it back on the top so you don't run off the cliff, and he turned around and went home... never saw him again the rest of the day. Packed his bike up and left.

 

But the stuff he was saying was just outrageous... he claimed he had 28mm PWK's on it. Clearly they were stock carbs after close inspection. Just a funny dude to talk to.

[J-Madd]

I'd never buy an entirely different heat range of plug based on "durability." They're too cheap. That being said, sounds like the guy is full of it anyway.

[Misssppelllleddd]

I'd never buy an entirely different heat range of plug based on "durability." They're too cheap. That being said, sounds like the guy is full of it anyway.

 

 

agreed :biggrin: