brendan_922 Posted October 29, 2013 Report Share Posted October 29, 2013 I have an 05 banshee everything is stock except for FMF fatty pipes (stock silencer). It tends to bogg as i give it throttle to take off but is fine once it actually starts to rev? 220 jets no clip adjustments no pilot jet changes and its sea level. It also heats up really fast then leaks coolant onto the pipe. would a coolhead help with this? should i get a silencer K&N's or the coolhead first and then what second? thanks for the help IM NOT RICH ONLY 15 AND WORK FOR MY MONEY... Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted October 29, 2013 Report Share Posted October 29, 2013 Fix headgasket leak and get some silencers and jet the thing. Probobly 280 mains Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted October 29, 2013 Report Share Posted October 29, 2013 Your jetting is very lean considering you're running aftermarket pipes. Stock jetting is 210 main and 25 pilot. You need to bump to about a 270 main and 27.5 pilot. This should help with your overheating issue. Try this first and then report back. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 29, 2013 Report Share Posted October 29, 2013 Pipes are out flowing stock jets. Is the air box totally stock? Try 260-280 main 1 clip richer, 27.5 pilot. It's getting cold enough in some places to need bigger jets Quote Link to comment Share on other sites More sharing options...
brendan_922 Posted October 29, 2013 Author Report Share Posted October 29, 2013 i tried 24o jets and it would start popping and i tried 270 and it would just rev crazy on its own... stock airbox but no snorkel (lid is on) Quote Link to comment Share on other sites More sharing options...
Uf21 Posted October 29, 2013 Report Share Posted October 29, 2013 Bump up your pilots to 27.5 and play with your air/fuel mixture. Also do you have a stock air filter? Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted October 29, 2013 Report Share Posted October 29, 2013 Leaking coolant into pipe means headgasket is leaking. Fix that 1st! Quote Link to comment Share on other sites More sharing options...
Uf21 Posted October 29, 2013 Report Share Posted October 29, 2013 Also if you have a PC and have Microsoft Excel use this https://www.dropbox.com/s/8a6doz57nstiqj9/Banshee digital toolkit.b1 Should get you pretty close to the right jetting. Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted October 29, 2013 Report Share Posted October 29, 2013 he's not saying its leaking into the pipe.....he said its leaking ONTO the pipe......so im taking it he has a removed over flow bottle and the hose from his radiator is running down the front downtube of his frame to just above a pipe. Like said.....your jetting is wrong. You need to be in the 280 range with a 27.5 main jet for the stock carbs. also make sure your putting your carbs back together correctly and clean. report back. 1 Quote Link to comment Share on other sites More sharing options...
brendan_922 Posted October 29, 2013 Author Report Share Posted October 29, 2013 Jeremy6655- i want to make sure you inderstand that ot has stock silencers? And stock airbox only snorkel removed. Not trying to be rude but want to make sure. And thanks for the input. My dad just tends to freak out wen i say i need to go to yamaha Quote Link to comment Share on other sites More sharing options...
brendan_922 Posted October 30, 2013 Author Report Share Posted October 30, 2013 The local yamaha shop suggested 30 pilots 310 main and needle in middle and drill a 2-3 in hole in the back of the lid... They have now said three diffrent main size jets. Quote Link to comment Share on other sites More sharing options...
KaN Powersports Posted October 30, 2013 Report Share Posted October 30, 2013 Your Yamaha shop is ensuring your lid isn't 'choking' and they are having you start out rich. This is sound advice (plugs are cheaper than pistons). Go buy from 330's down to 280's or so, start rich and keep the rest. Take your lid off and get the jetting where you are satisfied, put the id on and note the difference. Then you'll know what to do with/about the lid or airbox.... Quote Link to comment Share on other sites More sharing options...
wayne_smith97 Posted October 30, 2013 Report Share Posted October 30, 2013 (edited) Pipes are out flowing stock jets. Is the air box totally stock? Try 260-280 main 1 clip richer, 27.5 pilot. It's getting cold enough in some places to need bigger jets Do we go bigger in jet size in the winter due to fuel density? Or is it something to do with the colder air? Edited October 30, 2013 by wayne_smith97 Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted October 30, 2013 Report Share Posted October 30, 2013 The air is denser since it is cooler . So say you count the O2 molecules I a cubic foot of air when it's warm and when it's cold. The cold air will have more. Thus the term more dense. More air means more fuel will be needed to burn at optimum stoic. Sent from my iPhone using Tapatalk - now Free Quote Link to comment Share on other sites More sharing options...
03DMshee Posted October 30, 2013 Report Share Posted October 30, 2013 ^^^^^truth Quote Link to comment Share on other sites More sharing options...
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