qboronyrican Posted May 3, 2007 Report Posted May 3, 2007 whats the difference in jet size between a shee with a air box with no lid and no air box at all???? how many sizes if any and how much power???? Quote
qboronyrican Posted May 3, 2007 Author Report Posted May 3, 2007 also whats the jet size difference with the lid on with no snorkel and off .....anybody with some knowledge on the subject please.....would be greatly appreciated.....thanks Quote
bigboybanshee Posted May 3, 2007 Report Posted May 3, 2007 Removing just the snorkel I wouldn't worry about re-jetting....but for the other question, airbox w/no lid compared to pod filters, I imagine you'd need to bump the jets up at least 1 or 2 sizes. When in doubt, check your plugs! :beer: Quote
qboronyrican Posted May 4, 2007 Author Report Posted May 4, 2007 ok what about with the lid on and the lid off.....any difference in jet size....if so how much difference we talking???? Quote
dajogejr Posted May 4, 2007 Report Posted May 4, 2007 1-2 sizes... Check your plugs. NO one can give you a 100% certain answer. Remove the lid, add two sizes to your main jets, and do a proper plug chop to be sure. Always better to start off a little rich... http://www.dfn.com/benkaren/plugchop.html Quote
qboronyrican Posted May 4, 2007 Author Report Posted May 4, 2007 you think its that many sizes just for removing the lid ....huh.....wow....maybe its a litttle less for me cause i have like 4 or 6 vents in my lid but i guess i wont know untill i do a plug chop but i dot really have accesss to a open area to ride wide open in all the gears like needed so its going to be a while .....hope i dont burn up my motor Quote
dajogejr Posted May 4, 2007 Report Posted May 4, 2007 Did you rejet when you put holes in the lid? Let me give you my latest example... Normally...around here, I put 330 to 340 main jets in a T5's bike with no air box, pod filters. Jmkampala "hill billied" his setup. He's using the stock boots, the front, and ONLY front of the airbox mounting assembly and fastened a K&N Filter to that. So...no airbox. I put 340s in his bike...fell on it's face in the upper RPMs...and was rich. He put 320's in....big difference...ran much better and cleaner. So...yes, removing the airbox will probably need 1 to 2 jet sizes bigger.... Quote
qboronyrican Posted May 5, 2007 Author Report Posted May 5, 2007 yea i understand 2 sizes when going from a air box to no air box but what about a air box with lid to a air box with no lid....can't be that big of a difference could it????? oh and i dont know if it was rejetted when the vents were put in the lid....i got the bike this way already done Quote
jmd0346 Posted May 5, 2007 Report Posted May 5, 2007 Too many variables to say. Go up a couple sizes and do plug checks. An engine only pulls so much air through. If you are already getting all the air you need with one setup it doesnt mean that a more free flowing "style" system will be better or require different jetting. On the other hand, IMHO, If anyone isnt riding in water or heavy mud often, I would suggest running pod filters. They work very well, are lighter, smaller and easier to work with and around. Quote
dajogejr Posted May 5, 2007 Report Posted May 5, 2007 yea i understand 2 sizes when going from a air box to no air box but what about a air box with lid to a air box with no lid....can't be that big of a difference could it????? oh and i dont know if it was rejetted when the vents were put in the lid....i got the bike this way already done Honestly, there's two things you can do....leave it as is, possibly learn the hard way....or jet it richer to be safe, and if it's too rich...go the next size down. I can promise you a top end from being lean is more money than a few dollar jets.... Quote
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