Chaddeous Posted August 2, 2010 Report Posted August 2, 2010 I have a 98 Banshee and need some help jetting... .040 Over FMF Powercore 2 Duals 750 Feet Above Sea Level No Airbox- Individual 2 Stage uni Filters Boost Bottle 70 Degrees Everything else Stock I am new to the game so any help would be appreciated as to where to start at... Have heard horror stories of people going too lean and having to rebuild the top end and i JUST did mine... Quote
pr0blumz Posted August 2, 2010 Report Posted August 2, 2010 27.5 pilot and 300 main. Start there and do a plug chop. Quote
Chaddeous Posted August 2, 2010 Author Report Posted August 2, 2010 27.5 pilot and 300 main. Start there and do a plug chop. Should that be a little rich if anything? Quote
muggzy Posted August 2, 2010 Report Posted August 2, 2010 (edited) 27.5 pilot and 300 main. Start there and do a plug chop. What he said. Yes it should be a little rich. After you're comfortable with the plug chop, You may want to drop the needle clips to position 4 (richer position) and go down to 280's main to improve your low end throttle response a little. Edited August 2, 2010 by muggzy Quote
Chaddeous Posted August 2, 2010 Author Report Posted August 2, 2010 What he said. Yes it should be a little rich. After you're comfortable with the plug chop, You may want to drop the needle clips to position 4 (richer position) and go down to 280's main to improve your low end throttle response a little. Now the main jet screws all the way in and the pilot jet unscrew 1 1/2 turns or whatever correct? Quote
Chaddeous Posted August 2, 2010 Author Report Posted August 2, 2010 What he said. Yes it should be a little rich. After you're comfortable with the plug chop, You may want to drop the needle clips to position 4 (richer position) and go down to 280's main to improve your low end throttle response a little. Now the main jet screws all the way in and the pilot jet unscrew 1 1/2 turns or whatever correct? Quote
pr0blumz Posted August 2, 2010 Report Posted August 2, 2010 Now the main jet screws all the way in and the pilot jet unscrew 1 1/2 turns or whatever correct? Huh? Quote
Chaddeous Posted August 2, 2010 Author Report Posted August 2, 2010 Huh? Do both the pilot and the main jet get screwed all the way in? Or are they to be turned out any? Quote
pr0blumz Posted August 2, 2010 Report Posted August 2, 2010 Do both the pilot and the main jet get screwed all the way in? Or are they to be turned out any? Yes, both get screwed in all the way. Seems as if you have them mixed up with the air screws. Quote
muggzy Posted August 3, 2010 Report Posted August 3, 2010 (edited) Now the main jet screws all the way in and the pilot jet unscrew 1 1/2 turns or whatever correct? OK, I'm going to assume you have the jets set as suggested; 27.5 pilots and 300 mains There are NO Pilot or Main jet screws. There is only an air mixture screw for the 1st quarter of throttle these should be gently seated and then opened 1.5T NOTE: This is an AIR MIXTURE SCREW on each carb. Opening it will be LEANER, closing it RICHER. If there's a TORS eliminator kit on your bike (no bulky box on top of each carb), you may have Idle adjustment screws on the outside of each carb. Download and read the first page of this "tool kit" put together by CarvedArt, one of the the members on this site: http://bansheehq.com/forums/index.php?showtopic=133410&view=&hl=BansheeDigitalToolkit_v1zip&fromsearch=1 Good Luck Edited August 3, 2010 by muggzy Quote
Chaddeous Posted August 3, 2010 Author Report Posted August 3, 2010 Now one more thing... The jet kit i bought i put a link to below, It only comes with a 30 Pilot jet... What will that do to everything instead of running a 27.5 pilot jet? BTW... I appreciate all the help! http://cgi.ebay.com/ebaymotors/YAMAHA-BANSHEE-JET-KIT-OEM-CARBS-YFZ350-87-06-_W0QQcmdZViewItemQQhashZitem48328dd91dQQitemZ310085802269QQptZMotorsQ5fATVQ5fPartsQ5fAccessories Quote
muggzy Posted August 3, 2010 Report Posted August 3, 2010 Now one more thing... The jet kit i bought i put a link to below, It only comes with a 30 Pilot jet... What will that do to everything instead of running a 27.5 pilot jet? BTW... I appreciate all the help! http://cgi.ebay.com/...sQ5fAccessories Basically the pilot jets cover the first quarter of throttle, the needle covers 2nd and 3rd quarters (middle half) and the Mains cover the top quarter of throttle. That being said, there is A LOT of overlap. I don't know how the Vito's "custom" needle compares to the stock needle. But since that's what you've got and the risk is to the rich side go for it; try the 30 pilots with the Vito's needles and 300 mains. Follow the instructions in your digital tool kit to do a plug chop and let us know what happens Quote
muggzy Posted August 3, 2010 Report Posted August 3, 2010 Now one more thing... The jet kit i bought i put a link to below, It only comes with a 30 Pilot jet... What will that do to everything instead of running a 27.5 pilot jet? BTW... I appreciate all the help! http://cgi.ebay.com/...sQ5fAccessories Basically the pilot jets cover the first quarter of throttle, the needle covers 2nd and 3rd quarters (middle half) and the Mains cover the top quarter of throttle. That being said, there is A LOT of overlap. I don't know how the Vito's "custom" needle compares to the stock needle. But since that's what you've got and the risk is to the rich side go for it; try the 30 pilots with the Vito's needles and 300 mains. Follow the instructions in your digital tool kit to do a plug chop and let us know what happens Quote
muggzy Posted August 3, 2010 Report Posted August 3, 2010 Oh yeah, since you're running rich you'll likely need to open your air screws when you adjust them. Again, look for the directions to do this in the jetting section of the digital tool kit. Quote
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