Ctown208 Posted November 22, 2012 Report Share Posted November 22, 2012 So need some help on jetting this thing. How do I tell when it's fat or lean other than it cutting out or running like crap. Also bike has a computek digital egt monitor. I'm new to the shee, i ws always a 4 stroke guy. Any help appreciated Thanks in advance Quote Link to comment Share on other sites More sharing options...
moneybags Posted November 22, 2012 Report Share Posted November 22, 2012 I would start by talking to who ever built the motor, should give you a ball park idea, then find a shop that does dyno work with A/F readings. Thats a big expensive motor to start learning on. Whats your location and altitude? More info on the motor would help, carb size, bore size, pipes alky or gas, type of carbs. Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 Well we are about 4k feet difference in elevation.. I'm a 5k and he's at 1k.. I was thinking about just dyno tuning it at the dunes.. Probably the best way. 78mil pistons 14 mil crank. Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 K&t dm pipes Shearer pipes Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 It has pe1 metering rods and lectron power jets Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted November 22, 2012 Report Share Posted November 22, 2012 holy shit Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 holy shit Now now spill the beans bud! I know you know how to jet this bad boy Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 Youre new to this and have a 14DM on alky?!?!?!? Yeah, I needed something to hillshoot with.. Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 I'm a newbe.. I've always been a yfz guy and I'm aware of how to tune them, I just use a dyno on them but I always see the 2 stroke guys tweaking on their shit so I figure there a bit more sensitive to weather and elevation. Quote Link to comment Share on other sites More sharing options...
xTHUNDERCATx Posted November 22, 2012 Report Share Posted November 22, 2012 (edited) http://www.prosanddr...r=1557#Post1557 read j-madds post Edited November 22, 2012 by xTHUNDERCATx Quote Link to comment Share on other sites More sharing options...
Dicklez Posted November 22, 2012 Report Share Posted November 22, 2012 Honestly all the advice in the world isnt gonna mean shit if you dont know what your doing. I never tuned an alky bike. Not like im the greatest with gas but i would turn your power jets out all the way and start from there. Go a turn or two at a time and see if it gets better or worse. I quick way to see if your lean is if the throttle runs away when your slowly giving it gas. Through the rpm range. To adjust the rods, you have to turn them in or out equally on both carbs. Have fun!!! Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 Just an idea but has anyone ever put a o2 bung in their pipe for tuning purposes.. Once again I come from the four stroker world so be easy on me. Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted November 22, 2012 Report Share Posted November 22, 2012 What are the mains now? What are the dumps drilled to? What pilots? Quote Link to comment Share on other sites More sharing options...
Ctown208 Posted November 22, 2012 Author Report Share Posted November 22, 2012 What are the mains now? What are the dumps drilled to? What pilots? I'll have to dig into it and see. Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted November 22, 2012 Report Share Posted November 22, 2012 I'll have to dig into it and see. Ok.. once you know what mains and dumps are in them it will help. Quote Link to comment Share on other sites More sharing options...
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