1977 440 Liquifire Problem

[Sliquifire]

When my current top end is maxed, my throttle lever is about 50 to 60% open, going from this to fully closing the throttle really doesn't make much of a difference in engine sound or speed.

I looked at the motor this afternoon and if it helps anyone with a diagnosis I noticed some black oily spew comming from where the Y exhaust pipe bolts to the motor. I looked a little closer and felt directly underneath the Y pipe and found that the oily spew was coming from the side of the motor that's not firing correctly (clutch side). The throttle side of the underneath of the Y pipe is dry. Any thoughts?

[harleysportster]

Rod had a good point about the throttle position. Check it by removing the air box and hold the throttle wide open against the handlebar, while hold it open, feel or look inside the intake side of the carb to see if the throttle slide is open fully or all the way up.

The oil seepage could be from a cyclinder rnot firing, follow this from test from Rich:
A "quick and dirty" check for the Prestolite CDI when the engine runs but seems to lack power or fowl plugs is to turn until #1 is at TDC (aprox...don't need to use a dial indicator)...then mark the inner clutch surface, using with a black marker, with a horizontal line aprox 1 inch long. Turn the engine 180 degrees and mark the inner clutch surface with a vertical line. Now, attach a timing light to #1 plug wire and start the engine. If you see only a horizontal line, the CDI is fine; if you see a "+", the CDI has failed. You see, each cylinder is to get it's own firing spark, but one mode of pack failure is when the circuits break down and connect, reducing the voltage of each ignition spark.