toomey

No, that gentleman recommending the 27.5 pilot is in error, there is NO data we have ever seen in testing that shows a need to raise the pilot jet under ANY circumstances......... Testing proves this to us. ONLY if in the course of tuning, you were closing the pilot air screw (half turn at a time) and the carburation was improving by the pilot system getting richer (pilot system = 0-1/4 throttle only) would you then, after turning the air screw in past 1/2 turn, go up one size jet and start over at the nominal 1.5 turns out and try again. (the effective range of the airscrew is 1/2 to 3 turns out from full in, then a jet change is needed in either direction and the screw returned to the nominal 1.5 turns out position) This is unnecessary, as the 1.5 turns setting with the stock #25 is correct. Also, your setup as described is right, the only question I have is do you have the lid on the airbox or not....?? If it is on, take it off.... OR, if it is on, is it ventilated? (a minimum of 12, One-Inch holes are required to allow the proper amount of air into the engine.) If it is off, remove the filter and cleanly try it again, something could be restricting air into the engine and we don't want anything to do this. YES!! carb synchronization is important, but you can do it with the feel method too, with fingers, of visually if you don't want to remove the rubber boots. With the idle screws out (not in effect) the slides should make ONE click sound as they bottom out together and should visually rise together. This all assumes clean and lubed cable etc. Twist the throttle (lever?) hard and fully to fully seat all the cables and adjusters while performing this operation. Best of luck! S. Toomey

------------------------------------------------------- Banshee T5 or TR6 Jetting; Our pipes are designed from scratch as an integrated system, or KIT if you will, which is intended to work in all respects, as a fully tuned package of parts not to be split up and used individually. Our pipes require our Perfect Jetting Kit (custom ground needles and main jets) which provides the PERFECT fuel curve for the stock engine or with simple modifications. It is also required that you ventilate the stock airbox, with at least twelve, one-inch holes, We supply the 12 snap-in vents for this purpose) to allow sufficient air into the box as will be demanded by the pipes. OR Our 2:1 High Flow Filter System, which replaces the stock box and, will filter the air AND not restrict flow. NOT the individual K&N filters on each carb, as they create bad turbulence in the intake, creating unstable airflow. ANYTHING else, will result in a different fuel curve, and is nothing we can support (you are a test pilot). Feel free to test to your hearts content, but this is the combination we have tested and designed which we know, will product the rated power. We use a #280 main jet at sea level, on a standard day (59 deg F / 29.92 baro), We set the needle on the 4th groove down from the top. We use the stock Pilot jet (#25) We set the airscrew to 1.5 turns out from full in We set the float levels at the stock setting (21mm +/- 1mm) With any other changes in density altitude, (actual altitude above sea level, corrected for pressure and temperature effects), changes must be made to the main jet to compensate. Without instrumentation, you must cover your bases by a wide margin. This is why we say one jet size for every 2000 feet altitude change from sea level. THEN corrections must be made for temperature, which also affects density altitude. So, if it is hot out (90degF) at 2000 feet, you may have a density altitude of 3500 feet or more, and need a 270 or 260 main to maintain proper carburetion. You must test in your local area at the time to be sure. Suffice to say, if it is running well, leave it alone. If you frequently go from the beach to the mountains, you may have to keep after it. We keep the 2:1 High Flow Filter Systems, (and Outerwear pre-filters) Perfect Jetting Kits, Uni-Filters, and Uni-Vents in stock. We also have (at a discount) the "KIT BAG", which is Uni-Vents, 2-stage Uni-Filter (for the stock box) and our Perfect Jetting Kit, instructions and stickers for only $69.99. (This is also the difference between a pipe SET (pipes and silencers only) and a Pipe KIT. Just give Kim a call, she will fix you right up! ST

----------------------------------------------------------------------------------------------------- Reply from Toomey Racing USA: Banshee T5 or TR6 Jetting; Our pipes are designed from scratch as an integrated system, or KIT if you will, which is intended to work in all respects, as a fully tuned package of parts not to be split up and used individually. Our pipes require our Perfect Jetting Kit (custom ground needles and main jets) which provides the PERFECT fuel curve for the stock engine or with simple modifications. It is also required that you ventilate the stock airbox, with at least twelve, one-inch holes, (We supply the 12 snap-in vents for this purpose) to allow sufficient air into the box as will be demanded by the pipes. OR Our 2:1 High Flow Filter System, which replaces the stock box and, will filter the air AND not restrict flow. NOT the individual K&N filters on each carb, as they create bad turbulence in the intake, creating unstable airflow. ANYTHING else, will result in a different fuel curve, and is nothing we can support (you are a test pilot). Feel free to test to your hearts content, but this is the combination we have tested and designed which we know, will product the rated power. We use a #280 main jet at sea level, on a standard day (59 deg F / 29.92 baro), We set the needle on the 4th groove down from the top. We use the stock Pilot jet (#25) We set the airscrew to 1.5 turns out from full in We set the float levels at the stock setting (21mm +/- 1mm) With any other changes in density altitude, (actual altitude above sea level, corrected for pressure and temperature effects), changes must be made to the main jet to compensate. Without instrumentation, you must cover your bases by a wide margin. This is why we say one jet size for every 2000 feet altitude change from sea level. THEN corrections must be made for temperature, which also affects density altitude. So, if it is hot out (90degF) at 2000 feet, you may have a density altitude of 3500 feet or more, and need a 270 or 260 main to maintain proper carburetion. You must test in your local area at the time to be sure. Suffice to say, if it is running well, leave it alone. If you frequently go from the beach to the mountains, you may have to keep after it. We keep the 2:1 High Flow Filter Systems, (and Outerwear pre-filters) Perfect Jetting Kits, Uni-Filters, and Uni-Vents in stock. We also have (at a discount) the "KIT BAG", which is Uni-Vents, 2-stage Uni-Filter (for the stock box) and our Perfect Jetting Kit, instructions and stickers (This is also the difference between a pipe SET (pipes and silencers only) and a Pipe KIT. ST