I recently added one of these to my 1997 YZ 250. The bike allready had an FMF Gnarly torque pipe and shorty silencer. It is otherwise stock.
The bike was jetted pretty well with the stock reeds. Due to the altitude I am at, one step leaner was all the bike needed with the stock reeds and cage.
With the v force added, the plug went black...very black. I have leaned th emain down several more sizes (from the stock 168 to a 160), but that formerly coffee and cream colored plug is still very black. I also went with a needle that is one step leaner than stock.
I like the way the bike responds with the v force in it. Do these things cause the bikes to run much richer???
Am I wasting my time trying to get the plug back to the origional color? I would appreciate any and all help with this...thanks!
The bike was jetted pretty well with the stock reeds. Due to the altitude I am at, one step leaner was all the bike needed with the stock reeds and cage.
With the v force added, the plug went black...very black. I have leaned th emain down several more sizes (from the stock 168 to a 160), but that formerly coffee and cream colored plug is still very black. I also went with a needle that is one step leaner than stock.
I like the way the bike responds with the v force in it. Do these things cause the bikes to run much richer???
Am I wasting my time trying to get the plug back to the origional color? I would appreciate any and all help with this...thanks!