Desert Pipe = Sparkplug fouling

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Hendrikder
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Desert Pipe = Sparkplug fouling

Post by Hendrikder » 01:02 pm Jun 10 2019

Good Day everyone

I would just like to know if a desert pipe (FMF Gnarly) could cause my spark plug to foul when I am riding technical terain at low throttle for a while?

I think my jetting is good for my current weather and altitude.

Thanks for the help
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Re: Desert Pipe = Sparkplug fouling

Post by KDXGarage » 03:00 pm Jun 10 2019

If you are riding in real slow terrain with low throttle situations, consider a one step hotter spark plug. Also "clear it out" on occasion.

I would not be looking to blame the pipe at this point.
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Re: Desert Pipe = Sparkplug fouling

Post by SS109 » 08:35 am Jun 11 2019

I run a desert pipe and have done quite a bit of nasty hike-a-bike stuff and never fouled a plug.
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Re: Desert Pipe = Sparkplug fouling

Post by KDXGarage » 08:47 am Jun 11 2019

SS109, which heat range plug do you run??
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Re: Desert Pipe = Sparkplug fouling

Post by tman » 11:23 am Jun 11 2019

Jetting is wrong.

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Re: Desert Pipe = Sparkplug fouling

Post by kdxsully » 03:54 pm Jun 11 2019

KDXGarage wrote:
03:00 pm Jun 10 2019
If you are riding in real slow terrain with low throttle situations, consider a one step hotter spark plug. Also "clear it out" on occasion.

I would not be looking to blame the pipe at this point.
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Re: Desert Pipe = Sparkplug fouling

Post by SS109 » 04:40 pm Jun 11 2019

KDXGarage wrote:
08:47 am Jun 11 2019
SS109, which heat range plug do you run??
A standard NGK BR8ES.
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Re: Desert Pipe = Sparkplug fouling

Post by Molly's 70 » 05:30 pm Jun 11 2019

Yup, you have to turn the screw & clean the engine out every so often. When it get "blubbery" clean it out.
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Re: Desert Pipe = Sparkplug fouling

Post by Hendrikder » 12:51 am Jun 12 2019

Thank You very much for the help

I will try a hotter spark plug then, I am running the standard BR8ES I will then move to a 9.

Thanks
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Re: Desert Pipe = Sparkplug fouling

Post by SS109 » 12:58 am Jun 12 2019

A hotter plug in an NGK would be a BR7ES. Smaller # = hotter plug/larger # = colder plug

For the record, my bike never loads up/gets blubbery and doesn't need to be blown out when riding. I would bet you need to tune your jetting. Have you followed the jetting guide? Have you done any plug chops to confirm your jetting?
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