That is a big jet, what size was the stock one?
Both our dune 150s came with 114 main 34 pilot.
I tried a 125 on the blue dune 150 before any major mods only a uni filter and 10 gram rollers and it ran very bad.
The blue dune 150 now a 183cc with a12 cam mild ported head and 3/4 tip stock modified muffler is now running a 125 main. Plug is dark.
The red dune 150 with a high compression srp 58.5 piston a 12 cam mild ported head same muffler 3/4 tip mod is running a 122 main. Plug is light tan.
Does your buggy have a egr system?
What sise is the muffler tip/ opening? Our buggies came with a 5/8 opening tip.
Last edited by Johnny 5; 03-04-2013 at 09:39 AM.
Reason: more questions
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