BZNrider
Ramblin' Rambler
I have an 81SH (BS34). Did the Mikes 1.5" headpipes w/ dynaglide mufflers and pod air filters. The jetting is stock except for 135 mains. The carbs were sync'ed by a shop.
The bike is running a bit rich, I can smell -some- unburned fuel on idle and the plugs are a bit dark but never wet looking. My mixture screws are set 2 1/2 turns out. My real concern is that when I grab a handful (greater than 3/4) of throttle, the bike falls on its face. I lose a lot of my power and cannot maintain speed. The bike surges slightly when this happens. Even up at 70, the bike pulls the best at 3/4 to 7/8 throttle.
I thought that these carbs were fairly lean to begin with and I did not 'rich' them out too much, but I think it may be pouring too much fuel in at WOT. I read somewhere that the needles can wear and make the bike run rich? Is this possible?
The diaphragms look fine and the carbs are very clean. I thought that the floats may have been improperly adjusted but I measured them tonight and they were fine. The carbs never leak. The bike idles great and starts fine, pops slightly on deceleration (right side only).
Any ideas?
The bike is running a bit rich, I can smell -some- unburned fuel on idle and the plugs are a bit dark but never wet looking. My mixture screws are set 2 1/2 turns out. My real concern is that when I grab a handful (greater than 3/4) of throttle, the bike falls on its face. I lose a lot of my power and cannot maintain speed. The bike surges slightly when this happens. Even up at 70, the bike pulls the best at 3/4 to 7/8 throttle.
I thought that these carbs were fairly lean to begin with and I did not 'rich' them out too much, but I think it may be pouring too much fuel in at WOT. I read somewhere that the needles can wear and make the bike run rich? Is this possible?
The diaphragms look fine and the carbs are very clean. I thought that the floats may have been improperly adjusted but I measured them tonight and they were fine. The carbs never leak. The bike idles great and starts fine, pops slightly on deceleration (right side only).
Any ideas?
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