B
biglou
Went riding today for the first time with Phillips TT111 (aka: B32) in the tank. First off, I have to say that it was so freaking hot that a couple of old men-Al and I-had no business being out there. I rode three five-lap motos. Starting specs: 38 pilot jet, pilot screw 1-1/4 out, needle is in the factory position. Temp, probably 92 degrees with about 40% RH. Here's how it went:
1st moto-Bike started after 3 kicks (cold). I noticed that when lugging a taller gear through a corner, it would blubber a bit. Also notice a slight stumble when reving it in neutral. Came in after two laps, and ran the screw in to 3/4 out. Went back out and found no appreciable difference.
2nd moto-Bike didn't want to start. I probably kicked it 25 times total, with and without hot start, and with and without choke. Tried "Cleaning it out" several times (kicking it over with hot start and comp release pulled. Finally, for no particular reason, she fired. Hot start was out. Rode my five laps, came back in and collapsed again.
3rd moto-Bike started first kick (?). Surprised, I put my helmet on and went out for my final laps of the day. Temp reading in the truck afterward was 102, and the truck is pretty accurate relative to all the bank thermometers and radio temps. The odd thing here is, after moto2 I said to Al, "So much for trying to restart during a race should I stall it." Well, last turn before the finish line jump, I killed it. Coasted off to the side, cleaned it out for GP, pulled the hot start, one kick and she fired right up. Sorta contradictary to it not wanting to start for moto number 2, I thought.
My questions are these-Drop the needle? Drop the pilot to 36? (I don't have a 36 on hand, 38 was the smallest available at the shop last week) How far in can I run the pilot screw? I've somehow got it in my head that 1-2 1/2 is the "normal" operating range.
It is hot here, and next race is this coming Saturday and the temp is looking like mid to upper 90's again. I have a spreadsheet with basic pilot, main and needle clip position infor based on temp and altitude. I don't remember where I got it, but it is calling for 154.9 (155) main, 3.1 (3rd) clip position from top, and 40.2 pilot. Sounds reasonable to me except for the TT111 tending to lean things out relative to pump fuel-which I'm assuming this spreadsheet is based on.
To date, running only Amoco premium, my only changes have been bumping the pilot up and down for temp changes and for the Big Gun pipe addition, with slight pilot screw tweaks here and there. How much does the needle position affect off-idle performance? Feel free to throw suggestions out or make jetting, etc. recommendations.
Right now, I'm thinking things are a bit rich. I think I'll pull the needle and set it to 3rd from the top and see how it performs off idle. The only wrench in that machine is the temps are supposed to drop to about 80 or even the upper 70's for a couple days here, so my only alternative is to sweat it out in the garage and get it done!
Thanks in advance for any info.
1st moto-Bike started after 3 kicks (cold). I noticed that when lugging a taller gear through a corner, it would blubber a bit. Also notice a slight stumble when reving it in neutral. Came in after two laps, and ran the screw in to 3/4 out. Went back out and found no appreciable difference.
2nd moto-Bike didn't want to start. I probably kicked it 25 times total, with and without hot start, and with and without choke. Tried "Cleaning it out" several times (kicking it over with hot start and comp release pulled. Finally, for no particular reason, she fired. Hot start was out. Rode my five laps, came back in and collapsed again.
3rd moto-Bike started first kick (?). Surprised, I put my helmet on and went out for my final laps of the day. Temp reading in the truck afterward was 102, and the truck is pretty accurate relative to all the bank thermometers and radio temps. The odd thing here is, after moto2 I said to Al, "So much for trying to restart during a race should I stall it." Well, last turn before the finish line jump, I killed it. Coasted off to the side, cleaned it out for GP, pulled the hot start, one kick and she fired right up. Sorta contradictary to it not wanting to start for moto number 2, I thought.
My questions are these-Drop the needle? Drop the pilot to 36? (I don't have a 36 on hand, 38 was the smallest available at the shop last week) How far in can I run the pilot screw? I've somehow got it in my head that 1-2 1/2 is the "normal" operating range.
It is hot here, and next race is this coming Saturday and the temp is looking like mid to upper 90's again. I have a spreadsheet with basic pilot, main and needle clip position infor based on temp and altitude. I don't remember where I got it, but it is calling for 154.9 (155) main, 3.1 (3rd) clip position from top, and 40.2 pilot. Sounds reasonable to me except for the TT111 tending to lean things out relative to pump fuel-which I'm assuming this spreadsheet is based on.
To date, running only Amoco premium, my only changes have been bumping the pilot up and down for temp changes and for the Big Gun pipe addition, with slight pilot screw tweaks here and there. How much does the needle position affect off-idle performance? Feel free to throw suggestions out or make jetting, etc. recommendations.
Right now, I'm thinking things are a bit rich. I think I'll pull the needle and set it to 3rd from the top and see how it performs off idle. The only wrench in that machine is the temps are supposed to drop to about 80 or even the upper 70's for a couple days here, so my only alternative is to sweat it out in the garage and get it done!
Thanks in advance for any info.
