Taffy/Yamakaze!!! Jetting Results...
Posted January 13, 2003 - 08:53 PM
I finally got my parts and now have my jetting set up the way you folks suggested. See my signature for the details on my settings. The bike does run better but not yet perfectly. Once the bike is nice and warm and ridden for a little bit the bike starts to pop and hesitate on excelleration. I rode tonight and seemed like it ran fine for about 5 to 10 minutes. Then all of a sudden it started popping again. What's weird is by the time I got back to my vehicle, the popping stopped. I rode it around, back and forth, and couldn't get it to pop again. Could it be the elevation? I really didn't get more than 100-200 feet above where the parking spot was and a the highest point of my ride is where the popping was. I don't get it. Am I still too rich on my pilot or main, or both? Wondering what a change to a 42 pilot and 165 main will do. Could it be the gas? I'm running 91 octane pump gas with an octane booster. Could the octane booster be screwing everything up?
I'm also heading to Southern California next weekend for a big ride. Wondering what jetting changes you may suggest. If I'm a little too rich here, could it be just right down there? The elevation down there will be about 2500ft as opposed to 4500+ around my home. And temps are probably gonna be around 60 degrees instead of my typical winter 40's.
Posted January 13, 2003 - 09:13 PM
Posted January 13, 2003 - 10:49 PM
Posted January 14, 2003 - 04:11 AM
try the #4 position to richen up the mid range.
Posted January 14, 2003 - 05:07 AM
Glad you like the EKN....It rocks....
Posted January 14, 2003 - 05:56 AM
Posted January 14, 2003 - 08:26 PM
I just added another 1/4 turn to the pilot screw & took it for a quick 1/2 hour ride. Walla! No popping at all. It was even cooler tonight than last night too, by about 5 or 10 degrees. Anyway, it's running pretty good. Sure feels like it's puller harder than I remember it ever doing. Of course riding in the dark feels faster anyway & it's the first time I've been able to ride in 3 some weeks. Anyway, I'll give it a good ride this Saturday, in the daytime, and see how it holds up. The way it's running right now, I am starting to change my mind about going back to straight 91 octane gas & keep running the NOS Octane Boost.
Posted January 15, 2003 - 03:43 AM
I am impressed.
I do not know if I would have gone richer on the fuel screw instead of the needle...
Maybe, since the carb is a b*ch to get to...(??)
GOOD JOB... Kaz... GOOD JOB!!!!!!
Posted January 15, 2003 - 02:18 PM
don't put my name to that jetting but if you go leaner you may!
there's misfiring which is rich and there's popping which is lean.
Posted January 15, 2003 - 08:59 PM
Posted January 19, 2003 - 06:03 PM
Anyway, to make a long story a little shorter. When I got home I changed the jets leaner. Went with a new plug, 42 pilot jet, 165 main jet, and back to 1 1/2 turns out on the pilot. Went riding today with these settings. The thing ran great. Haven't taken the plug out yet to see what it looks like, but the bike did run very well. No poping at anytime. No bobbles up tough climbs. Pulled evenly and cleanly throughout every gear. Worked great through the tight technial rocky stuff too without any sign of my past jetting problems. Now we'll just have to see how it works next weekend in Southern Cal.
Posted January 20, 2003 - 07:24 AM
Posted January 20, 2003 - 09:10 AM
just as i thought. running very rich and to be honest that lowered needle is still required. you may need to drop it twice even.
i won't put my name to it yet!
Posted January 20, 2003 - 09:17 AM
Posted January 20, 2003 - 12:25 PM
Posted January 20, 2003 - 03:46 PM
Posted January 29, 2003 - 05:30 PM
With that in mind. Now do I just change the needle position down on clip? Change my main to a 162 or even a 160? Being back up at 5000 some ft, how much leaner should I run it? It was working pretty damn good two weeks ago. Just wasn't quite as good as it was down in So. Cal. Think the bike a bit more bottom end down there.
Posted January 30, 2003 - 09:33 AM