Author Topic: Jetting ?  (Read 1201 times)

Offline Bodhizafa1987

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Jetting ?
« on: August 01, 2016, 06:09:26 pm »
Hey lookin to put a FMF Gold Series pipe and silencer on a bone stock 87 Zilla any elite members with experience with this exhaust pipe have sum advise on Wat jets to change and to wat size I'm using a Mikuni Tm38ss carb has a 420 main 30 pilot 6DH6 Needle 2.0 slide an 0-6 needle jet and I also have a carb off the 88-89 model Zilla that has a 350 main jet a 22.5 pilot 6DK3 Needle 4.0 slide and R-2 needle jet all expert advise is appreciated Ty P.s I was told the 87 carbs weren't so good so if 1 of my carbs will work better than the other I ll take ur advise

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Offline SuperNutt

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Re: Jetting ?
« Reply #1 on: August 01, 2016, 06:47:09 pm »
I run a FMF pipe on my 88 trail zilla.  If you go on FMF's website it gives you jetting specs which is basically stock jetting.  Depending on temperature and type of fuel, they are pretty close.  I run the stock jetting on my 88 in the trails but if I would go to the dunes, I would richen up the main a little.  Probably better running the 88 and up carb if you have the choice

Offline Q2W

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Re: Jetting ?
« Reply #2 on: August 02, 2016, 06:31:02 am »
Like supernutt said, you're not gonna need much of a change for the FMF.  maybe a up a size on both the pilot and main.  def go with the 88+ carb - 43 b10 or 20.


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