New to the forum: My nephew just picked up a 1987 300sx that was torn down and a parts machine to go with. Up unitl now, reassembly has gone smooth.
The machine starts, idles for a short time, stalls and will not restart. I have checked the basics: Machine has good compression, spark, reeds look good. Kill switch tests positive for continuity. New fuel and fuel lines were installed. Carb rebuilt with new kit. Also installed a blockoff plate and am running premix 50:1. I bypassed the fuel selector switch, running the carb directly off the reserve feed from the tank.
The one thing I'm not sure of is which line on the carb is the feed and which is the return. (Any info would be great.) Funny thing is, it responds the same way regardless .
Being that this machine is so old, it seems that the local dealers are giving me conflicting numbers or have no info at all. Searching on this forum, I have found these numbers to be a good starting point ( Low 1 1/4 High 1 9/16). If rebuilding the carb (again) yeilds the same results, I'm thinking the problem may be electric. If anyone can shoot me some numbers and testing procedures, that would be helpful.
Thanks in advance.
BTW, once this machine gets up and running, the spare machine will be parted. If anyone is looking for anything, let me know and I'll see what I have left........if and when it runs. lol
The machine starts, idles for a short time, stalls and will not restart. I have checked the basics: Machine has good compression, spark, reeds look good. Kill switch tests positive for continuity. New fuel and fuel lines were installed. Carb rebuilt with new kit. Also installed a blockoff plate and am running premix 50:1. I bypassed the fuel selector switch, running the carb directly off the reserve feed from the tank.
The one thing I'm not sure of is which line on the carb is the feed and which is the return. (Any info would be great.) Funny thing is, it responds the same way regardless .
Being that this machine is so old, it seems that the local dealers are giving me conflicting numbers or have no info at all. Searching on this forum, I have found these numbers to be a good starting point ( Low 1 1/4 High 1 9/16). If rebuilding the carb (again) yeilds the same results, I'm thinking the problem may be electric. If anyone can shoot me some numbers and testing procedures, that would be helpful.
Thanks in advance.
BTW, once this machine gets up and running, the spare machine will be parted. If anyone is looking for anything, let me know and I'll see what I have left........if and when it runs. lol