barto
Newbie
Wouldn't the timing key in conjunction with the exhaust require the use of high octane fuel? One of the things I like about the four strokes is that they run better on 87 octane and don't need high test.
Charged RTX
Expert
No, I am running a split head gasket and 6 degree advance and I only run 87. The exhaust should not make any difference.
barto
Newbie
Getting back to the original clutch related questions, I have put some miles on with the following results:
Tested for 6 miles (1.5 miles out and back twice)
Shoulder: 4.7g
Center: 3.2g
Tip: 0g
Overdrive: 4.2g
Spring: White
Secondary: Stock @ 3-3
Hated this setup! The white spring seems to kill your power all the way through the powerband. I tried this setup with both the Dayco U3 belt, then with the 805, and the 805 pulled stronger, so I left it on for the rest of my testing.
Then I tried:
Tested for 6 miles (1.5 miles out and back twice)
Shoulder: 4.7g
Center: 3.2g
Tip: 3.2g
Overdrive: 3.2g
Spring: Black
Secondary: Stock @ 3-3
Black spring, much better! Actually stays in lower gear long enough for you to build some horsepower. This setup was not the ultimate, however. The midrange seemed to be lacking on power at back shift and while passing through on the way to the top. The top end seemed to have great pull after 10,000 rpms, up to 10,800-11,000 (depending on conditions).
I rode this setup for 120 miles and continued to have the impression that the mid-range was getting killed somehow. Also, engagement is at 3800, but still seems quite abrupt. I think it is the 805 belt. I could probably lose a washer or two from the shoulder.
Also, this was the first decent ride with the Ultra-q exhaust. It was a bit too loud for me, but it sounds like the Steve McQueen Mustang in Bullitt. Pretty cool! I will probably sell it, if anyone is interested.
Any ideas where to go with the Drag & Fly setup?
Tested for 6 miles (1.5 miles out and back twice)
Shoulder: 4.7g
Center: 3.2g
Tip: 0g
Overdrive: 4.2g
Spring: White
Secondary: Stock @ 3-3
Hated this setup! The white spring seems to kill your power all the way through the powerband. I tried this setup with both the Dayco U3 belt, then with the 805, and the 805 pulled stronger, so I left it on for the rest of my testing.
Then I tried:
Tested for 6 miles (1.5 miles out and back twice)
Shoulder: 4.7g
Center: 3.2g
Tip: 3.2g
Overdrive: 3.2g
Spring: Black
Secondary: Stock @ 3-3
Black spring, much better! Actually stays in lower gear long enough for you to build some horsepower. This setup was not the ultimate, however. The midrange seemed to be lacking on power at back shift and while passing through on the way to the top. The top end seemed to have great pull after 10,000 rpms, up to 10,800-11,000 (depending on conditions).
I rode this setup for 120 miles and continued to have the impression that the mid-range was getting killed somehow. Also, engagement is at 3800, but still seems quite abrupt. I think it is the 805 belt. I could probably lose a washer or two from the shoulder.
Also, this was the first decent ride with the Ultra-q exhaust. It was a bit too loud for me, but it sounds like the Steve McQueen Mustang in Bullitt. Pretty cool! I will probably sell it, if anyone is interested.
Any ideas where to go with the Drag & Fly setup?
Charged RTX
Expert
What rpms are you running through the midrange?
barto
Newbie
Hello again, Charged RTX!
It was really funny in the mid-range (maybe conditions related), but at times I would be running 8500-9000 rpms and only going 55-60 mph, and not a lot of beans when I would nail the throttle, until I hit 10,000 rpm when it would really pull strong. This is not like stock last year! I will say that I had installed a Goodwin Performance external secondary belt-deflection adjuster, since changing belts would be a pain without it. I discovered at about 12 miles of testing that the 14mm bolt holding the clutch on was loose. I loctited it and re-installed (tight). After riding 50 miles, I checked it, loose again. Very worrisome. I tightened it and rode back (70 miles). It was tight, but I still removed it and put the secondary back to stock.
I was thinking about adding a washer to the center (go from 3.2g to 4.2g) to bring those midrange rpms's down. It might help scrub a few rpm from the top end as well, since it easily goes to 10,800+. I couldn't hold it long enough to see if the top end rpm's would settle back to a lower number.
It was really funny in the mid-range (maybe conditions related), but at times I would be running 8500-9000 rpms and only going 55-60 mph, and not a lot of beans when I would nail the throttle, until I hit 10,000 rpm when it would really pull strong. This is not like stock last year! I will say that I had installed a Goodwin Performance external secondary belt-deflection adjuster, since changing belts would be a pain without it. I discovered at about 12 miles of testing that the 14mm bolt holding the clutch on was loose. I loctited it and re-installed (tight). After riding 50 miles, I checked it, loose again. Very worrisome. I tightened it and rode back (70 miles). It was tight, but I still removed it and put the secondary back to stock.
I was thinking about adding a washer to the center (go from 3.2g to 4.2g) to bring those midrange rpms's down. It might help scrub a few rpm from the top end as well, since it easily goes to 10,800+. I couldn't hold it long enough to see if the top end rpm's would settle back to a lower number.
barto
Newbie
Error correction for above: It was a 14mm hex on the bolt; no idea what size it is (10mm maybe?)