StPeteXX Posted September 6, 2004 Share Posted September 6, 2004 Ok. I have been contemplating on jetting my XX. I would like to know what I can resonably expect out of it other than a higher consumption of fuel. My XX is a 13K mile BLACK 1997 with a full Yoshi RS3 exhaust, Dyna 2000 Ignition advance and -1 countershaft. I recently had it dyno'd at 139hp RWP and 170mph. Rih Quote Link to comment Share on other sites More sharing options...
willxx23 Posted September 6, 2004 Share Posted September 6, 2004 Ok. I have been contemplating on jetting my XX. I would like to know what I can resonably expect out of it other than a higher consumption of fuel. My XX is a 13K mile BLACK 1997 with a full Yoshi RS3 exhaust, Dyna 2000 Ignition advance and -1 countershaft. I recently had it dyno'd at 139hp RWP and 170mph. Rih What the hell is a JET? :headscratch: :razz: Quote Link to comment Share on other sites More sharing options...
Pete in PA Posted September 7, 2004 Share Posted September 7, 2004 How's it currently running? any flat spots? 139 is great without jetting. I wonder what got you the most, the exaust or the advancer. If you want the most, I'd put in a K@N, then jet, and you might get another 3 to 5 HP if done correctly. I jetted with everything else stock and went back to stock jetting cause of the 10 MPG drop. I kept the pilot screws at 3 turns out and it runs great, no flat spots, and same power. 136 HP for me BTW. Quote Link to comment Share on other sites More sharing options...
Ripped1 Posted September 7, 2004 Share Posted September 7, 2004 Whazzup Pete? Re-jet. I did it after I bought the Muzzy system from you, and the seat of the pants dyno tells me that it was a good mod. After changing the exhaust there was a flat spot around 6500 RPM, but with the jet kit, the flat spot went away, and the overall power seems to have improved greatly. -Ridley Quote Link to comment Share on other sites More sharing options...
86gn Posted September 7, 2004 Share Posted September 7, 2004 I rejetted with the Factory Pro kit and I still get better mileage than the fuelies do......as long as I don't stay in the triple digits long. Quote Link to comment Share on other sites More sharing options...
xxexcess Posted September 7, 2004 Share Posted September 7, 2004 my 98 is jetted, piped and K&N'd goes like a freakin bullet, mind you i bought that way from a friend of mine so i wouldn't know any difference, however i remember him telling me after he got it done it made a huge difference and that's after him owning the bike 4years or so. Go do it especially if you got the rest of the usual mods too. Iain Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted September 8, 2004 Author Share Posted September 8, 2004 Thanks for all of the replies. The bike currently runs great with no flat spots. What kind of price range including installation can I expect? Rich Quote Link to comment Share on other sites More sharing options...
DaveK Posted September 8, 2004 Share Posted September 8, 2004 Don't fuck with perfection ! 5 to 7 HP.....will you even feel that ? Look at Northman.....hasn't had a bike in 3 months. DO NOT DO IT ! Quote Link to comment Share on other sites More sharing options...
SBBXX Posted September 8, 2004 Share Posted September 8, 2004 Don't fuck with perfection !5 to 7 HP.....will you even feel that ? Look at Northman.....hasn't had a bike in 3 months. DO NOT DO IT ! What he said :roll: Quote Link to comment Share on other sites More sharing options...
StPeteXX Posted September 9, 2004 Author Share Posted September 9, 2004 Thanks guys. I think I'll pass on jetting since the motor runs excellent. Since I am -1 on the countershaft, I think I'll do the rear sprocket next. I am looking for more low end power and torque and not so terribly concerned with top end. As long as I can still hit 150mph I will be happy. I just want to get there faster and post faster 1/4 mile times :grin: :twisted: Rich Quote Link to comment Share on other sites More sharing options...
Pete in PA Posted September 9, 2004 Share Posted September 9, 2004 :roll: Squid :!: :razz: Quote Link to comment Share on other sites More sharing options...
bajjer9 Posted September 9, 2004 Share Posted September 9, 2004 http://www.factorypro.com/Prod_Pages/prodh75.html Lots of goodies here, factory pro comes highly recommended by some of my friends....likely will get everything on this page in the next month or two! Quote Link to comment Share on other sites More sharing options...
2equis Posted September 14, 2004 Share Posted September 14, 2004 Stock exhaust or slipons? - Don't bother... just shim the needles and back the pilot screws out 1/4 turn (and don't bother w/ a K&N filter at this point either - you'll see no gains) Full aftermarket exhaust? - Yes! don't go over 142's unless you plan on doing engine work. I am seeing a 8-10 hp gain on my '98 using an Akra ti full system, K&N air filter, Factory ignition advance, Factory Ti jet kit (using 142's) and at least 8 dyno runs to get setup right. That's only $100.00 an HP!!!!!!!!! But I got rid of my 3-4k flatspot!!!! Quote Link to comment Share on other sites More sharing options...
Red J Posted September 15, 2004 Share Posted September 15, 2004 I am seeing a 8-10 hp gain on my '98 using an Akra ti full system, K&N air filter, Factory ignition advance, Factory Ti jet kit (using 142's) and at least 8 dyno runs to get setup right. 42 or 45 pilots? Quote Link to comment Share on other sites More sharing options...
2equis Posted September 15, 2004 Share Posted September 15, 2004 42's Quote Link to comment Share on other sites More sharing options...
CBRXXRAGE Posted December 25, 2004 Share Posted December 25, 2004 Sorry this isnt about the jetting but did you notice a big diff. when you went -1 on the counter? Quote Link to comment Share on other sites More sharing options...
TOXXIC Posted December 28, 2004 Share Posted December 28, 2004 Sorry this isnt about the jetting but did you notice a big diff. when you went -1 on the counter? ABSOLUTELY. Way more felt torque. Front wheel jumps off the ground on wide open launches in 1st gear. Quote Link to comment Share on other sites More sharing options...
TechnoGecko Posted December 29, 2004 Share Posted December 29, 2004 I jet'd the bird immediateley after I bought it to get rid of the flat spot. Frankly it was so flat that it would throw me fowards, and then take off like a bat out of hell and nearly throw me off the bike. Having jet'd the Magna I knew what an amazing difference it made, so I did the same for the bird. It revs from 0 to redline without a single pause or studder and is remarkably smooth. So, I'd jet it - but thats IMHO Quote Link to comment Share on other sites More sharing options...
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