maha
New member
I have the top end rebuilt, PSI piped and rejetted, rail ext. to 136", 136"x1.25"x15" track, down 1 tooth on the gear and was thinking of going with a Hyperlite clutch. Any opinions on the helix?
BornYamaha
Member
Phazer Setup
Can't Say What Difference the longer track will make but when I ran my 1990 Psi piped, ported, 38 Flatslide, 121" track phazer you actually wanted to go up 1 tooth on the top instead of down. Stock gearing on a phazer is only good for about 80 MPH on it's best day and this may be over revving a little. This was a well known good 1/4 mile and general riding around idea not just radar runs. Get a torque arm too. I also ran 45 or even 43 helix. Multi-Angle were not around then. I think the 43 was specially ground by Riechard Yamaha or some other speed shop. I also ran very little twist on the secondary., The difficult thing is to get the primary engagement up high enough without over revving at the top. Notch the weights if you get deperate. You want at about a 4300RPM Engagement. I think the primary spring was a brown. It was from some old 1970s Race sled chart.(YP and YPZ Clutches Take the same springs). I don"t know if you can find that one but you may find a Green/Green spring easier. I Think that one was 40-preload 1.4-rate. Your looking for something with the Highest available preload with the lowest possable rate, (1.5 at the apsolute highest rate. Add the 3 allowable shims to it either way. The Red/Green (Rate 1.75) or Orange/Something ,(Yellow I Think)(1.83 Rate), that PSI or other speed shops sent with thier pipes Engage high enough but also tend to over rev at shift speed. It Seemed like over revving, even a little was a faster track to burning pistons than lean jetting. That single pipe likes about 7300 rpm. Below 7150 loose power, above 7450 loose power and maybe pistons if you stay there very long. The Stock Phazer II weights seemed to overall work the best. I had some reichards weights that pulled really hard from bottom to all but top end but they did not trail ride very well at all. Exciter Weghts are OK too. I guess I may have gotten a little long winded but I loved that old sled. I Never and I mean Never found another phazer I could not beat in a drag. Also beat alot of non-setup 650 Indys, 700 Wildcats, Indy XLTs, and even one pretty well Set up Piped, Ported, 1981 SRX440. In the long run they would be catching me but the race distance was 1/4 mile and that just wasn't enough.
Can't Say What Difference the longer track will make but when I ran my 1990 Psi piped, ported, 38 Flatslide, 121" track phazer you actually wanted to go up 1 tooth on the top instead of down. Stock gearing on a phazer is only good for about 80 MPH on it's best day and this may be over revving a little. This was a well known good 1/4 mile and general riding around idea not just radar runs. Get a torque arm too. I also ran 45 or even 43 helix. Multi-Angle were not around then. I think the 43 was specially ground by Riechard Yamaha or some other speed shop. I also ran very little twist on the secondary., The difficult thing is to get the primary engagement up high enough without over revving at the top. Notch the weights if you get deperate. You want at about a 4300RPM Engagement. I think the primary spring was a brown. It was from some old 1970s Race sled chart.(YP and YPZ Clutches Take the same springs). I don"t know if you can find that one but you may find a Green/Green spring easier. I Think that one was 40-preload 1.4-rate. Your looking for something with the Highest available preload with the lowest possable rate, (1.5 at the apsolute highest rate. Add the 3 allowable shims to it either way. The Red/Green (Rate 1.75) or Orange/Something ,(Yellow I Think)(1.83 Rate), that PSI or other speed shops sent with thier pipes Engage high enough but also tend to over rev at shift speed. It Seemed like over revving, even a little was a faster track to burning pistons than lean jetting. That single pipe likes about 7300 rpm. Below 7150 loose power, above 7450 loose power and maybe pistons if you stay there very long. The Stock Phazer II weights seemed to overall work the best. I had some reichards weights that pulled really hard from bottom to all but top end but they did not trail ride very well at all. Exciter Weghts are OK too. I guess I may have gotten a little long winded but I loved that old sled. I Never and I mean Never found another phazer I could not beat in a drag. Also beat alot of non-setup 650 Indys, 700 Wildcats, Indy XLTs, and even one pretty well Set up Piped, Ported, 1981 SRX440. In the long run they would be catching me but the race distance was 1/4 mile and that just wasn't enough.
maha
New member
Thanks, think I got things sorted out....already had offers to buy it here when I'm done. Seems like you put more into a sled then you get out if you sell. Sounds really nice with the PSI pipe.