01banshee09ltr Posted December 4, 2012 Report Share Posted December 4, 2012 FRESH PISTONS COMP AT 150 WARM MOTOR BOTH SIDES... PJ34MM CARBS PRO FLOW FILTER NO LID ON AIR BOX. I HAVE A 52 PILOT AND 165 MAIN IN THEM NOW, IT WILL START UP AFTER OVERNIGHT AND RUN HARD UNTILL I LET IT SHUT OFF IT WONT START AGAIN. WTF. MAYBE TIMING IS AN ISSUE HERE, IM RUNNING 20CC DOMES PRO DESIGN HEAD. PLUGS LOOK TO BE BURNING EFFICIANTLY BEING THAT THEY COME OUT TAN BUT THEY ARE SUPER WET.. SEEMS TO BE FOULING OUT ...WHY THOUGH... Quote Link to comment Share on other sites More sharing options...
possum Posted December 5, 2012 Report Share Posted December 5, 2012 is your boost bottle hooked up? Quote Link to comment Share on other sites More sharing options...
01banshee09ltr Posted December 5, 2012 Author Report Share Posted December 5, 2012 I had a moose racing boost bottle hooked up, then put the old stocker back on and made no difference. I can start it up and it will run hard till i shut it down then wont start back up, i pull the plugs and they are "soaked" with fuel. They come out carmel in color but wet. Would timing play any roll? Maybe the timing needs to be advanced to ignite it more efficiantly? Before i rebuilt the top end i had 22cc domes and could run the c12 with no problem, at the same time i was mixing the c12 50/50 with 93 pump fuel. During rebuild i put 20cc domes in and running just c12 mixed with motul oil 32-1 ratio. My compression is 150 both cylinders// timing? Quote Link to comment Share on other sites More sharing options...
possum Posted December 5, 2012 Report Share Posted December 5, 2012 on a serious note. pjs are tempermental on the pilot. try dropping it down. if it wont start when hot. could be jetting or electrical. timing is possible. change the easy stuff first then move on to the next to find the problem. Quote Link to comment Share on other sites More sharing options...
possum Posted December 5, 2012 Report Share Posted December 5, 2012 on a serious note. pjs are tempermental on the pilot. try dropping it down. if it wont start when hot. could be jetting or electrical. timing is possible if something makes it out of time. change the easy stuff first then move on to the next to find the problem. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted December 14, 2012 Report Share Posted December 14, 2012 I'd be of the opinion that you might not be making the typical compression that C12 needs to ignite completely. Starting the higher octane usually doesn't go to well in the cold. If the squish isn't to tight and you aren't running a ton of timing, try lowering your octane. Quote Link to comment Share on other sites More sharing options...
01banshee09ltr Posted December 14, 2012 Author Report Share Posted December 14, 2012 Thanks for the input, your absolutly right. Before reading this post i mixed up 2gal pump gas with 1 gal c12 and a 45 pilot in my PJ 34mm carbs and shes firing up with good consistancy and running like a raped date. Im stoked, shee had me stumped for a little bit, until i started talking with my foreman at the shop about fuel. I went home drained the fuel and ran this new mix and to my suprise im in the ballpark of some bangin combustion lmao. Thanks for all the help guys, shees back running like a shee should. SMOKIN THEM 450s, SMOKIN'M Quote Link to comment Share on other sites More sharing options...
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