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Posted

I'm getting a set of used FMF Gnarlys coming to me and need to get my jets set correctly.

 

Stock carbs, stock bore, no porting

700 ft (central NC)

Single K&N with no lid

Stock gearing

 

Thanks in advance!

Posted
I'm getting a set of used FMF Gnarlys coming to me and need to get my jets set correctly.

 

Stock carbs, stock bore, no porting

700 ft (central NC)

Single K&N with no lid

Stock gearing

 

Thanks in advance!

280-290 mains stock pilots clip on middle notch, so basically only changing mains.

Posted

Yeah, I'd agree... If the Gnarly's are similar to the Fattys (what I have) and you have the airbox

OFF with a K&N, I may just start at 300's or 310's and do a plg chop right off the bat... You will

prolly be at 280's or 290's, but its better to be a tad rich and work down... Also keep the needle

in the 3rd spot, you should be good with the stock pilot, and try the air-screws 1.5 out to start with... Read BenB's jetting FAQ document and after you get your main's rigth just put some time on the

plugs to get some color on them... You may need to drop the needle to the 4th clip if it moves at

all and you can adjust the air srews as needed... Have fun... It's a learing curve but its easy when

you get the hang of it...

Posted
Thanks for the help guys.

 

Anyone have experience with the Gnarlys? I do mainly trail and field riding (No dunes around here) so I thought the Gnarlys would be a good fit.

 

Thats what FMF say's they are designed for... Anything will beat the stock pipes...

Posted
Thanks for the help guys.

 

Anyone have experience with the Gnarlys? I do mainly trail and field riding (No dunes around here) so I thought the Gnarlys would be a good fit.

If you took the stock pipes off, your going to love the feeling of aftermarket pipes of any brand.

Posted

I got it rejetted tonight. 300 mains, stock pilots and 3rd clip on the needle with 1 1/2 turns. The previous owner had 240 mains and really rich on the 2nd clip.

 

By switching the needle clip it really helped with powerband lag that was present on the previous jetting. No I didn't run it any length of time with the 240s but I had to give it a quick run to hear the new pipes.

 

I will be doing some plug chops to get my mains spot on but I think I will be safe running a little rich with the 300s for now.

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