YFZ350kid Posted September 27, 2008 Report Posted September 27, 2008 (edited) I got the banshee back together today and kicked it up, started 2nd kick... no worries there... but after about 20 min of running the left cylinder was still smoking much much more than the right... shut it down, pull the plugs, right cylinder is a dark brown as expected my jetting was a bit rich, but the left was wet and white... carbs were just cleaned and checked over. any ideas guys? 25 pilots, 310 mains, 3rd clip from top, fmf fatties/power core 2's and k&N filter w/ no lid, timing at +5 at first I figured it was a bit of assembly lube from the build, but i think it would have burned off within 20 minutes... thanks Edited September 27, 2008 by YFZ350kid Quote
deckheight Posted September 28, 2008 Report Posted September 28, 2008 Sounds like either the fuel that is getting into the left combustion chamber is either not being completely burnt or there is just too much fuel getting in there and washing the color off the plug. Check your compression to see if fuel is blowing by the rings from the bottom end, both cylinders should be within 5psi of each other. Then take another look at the left reeds and carb, especially the float, float level and needle/seat assembly. Last start looking for ignition problems. Your sure the "smoke" is blue and not white. Nothing goofy going on with the coolant level... Quote
YFZ350kid Posted September 30, 2008 Author Report Posted September 30, 2008 Sounds like either the fuel that is getting into the left combustion chamber is either not being completely burnt or there is just too much fuel getting in there and washing the color off the plug. Check your compression to see if fuel is blowing by the rings from the bottom end, both cylinders should be within 5psi of each other. Then take another look at the left reeds and carb, especially the float, float level and needle/seat assembly. Last start looking for ignition problems. Your sure the "smoke" is blue and not white. Nothing goofy going on with the coolant level... thanks for the ideas, after closer inspection of the left carb, the float valve (needle/seat) has a small ring around it preventing a good seal... im waiting on the parts now but if i run it for about a minute with the fuel off once the level drops a bit in the bowl it cleans up and the plugs are the same color... now i just have to somehow keep myself occupied away from the banshee till the last couple parts come in. Quote
deckheight Posted September 30, 2008 Report Posted September 30, 2008 Lucky guess... Glad it worked out for you. Quote
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