shovel throttle doesnt throttle...? help
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Cruiser
Joined: Jun 2008
Posts: 202
Likes: 1
From: S.E. Connecticut
shovel throttle doesnt throttle...? help
I just spent the last two months rewiring my 80-ish shovel. When I was all done, it wouldnt start.
S&S E carb, new plugs, coil is fine (3ohms on primary, 11K on secondary), and electrical seems fine. Spark on both plugs.
Fuel is getting out the petcock, thru the filter, and to the carb nipple just fine.
If I use a medicine dropper and squirt 1tsp of gas into the carb throat it will start, run for about two seconds and start to die...squirt another tsp in there and it will recover...but my medicine dropper is not a carb venturi and i cant keep it running like that for long before it coughs, floods out, backfires out the tailpipe or who knows what else.
If I touch the throttle at all it will instantly die.
I havnt touched the idle, accel pump, or any other adjustment since I ran it last (two months). The last thing I screwed with was the wiring, cutting and extending the entire harness except the ign wires from the cone to the coil which I didnt touch. I also removed and reinstalled the throttle cables at the carb end...
Any thoughts? Oh ya, gas is new also....but the carb did sit for two months.
S&S E carb, new plugs, coil is fine (3ohms on primary, 11K on secondary), and electrical seems fine. Spark on both plugs.
Fuel is getting out the petcock, thru the filter, and to the carb nipple just fine.
If I use a medicine dropper and squirt 1tsp of gas into the carb throat it will start, run for about two seconds and start to die...squirt another tsp in there and it will recover...but my medicine dropper is not a carb venturi and i cant keep it running like that for long before it coughs, floods out, backfires out the tailpipe or who knows what else.
If I touch the throttle at all it will instantly die.
I havnt touched the idle, accel pump, or any other adjustment since I ran it last (two months). The last thing I screwed with was the wiring, cutting and extending the entire harness except the ign wires from the cone to the coil which I didnt touch. I also removed and reinstalled the throttle cables at the carb end...
Any thoughts? Oh ya, gas is new also....but the carb did sit for two months.
Needle and seat could be stuck shut, try tapping on the carb or remove the float bowl and inspect. Once the float bowl is full of fuel it should squirt fuel in the venturi when you twist the throttle. 2nd, remove the fuel line at the carb and spray carburetor cleaner directly in and it could loosen the needle valve.
Road Warrior
Joined: Mar 2009
Posts: 1,843
Likes: 5
From: PacNW (Olympic Pennsula)
Needle and seat could be stuck shut, try tapping on the carb or remove the float bowl and inspect. Once the float bowl is full of fuel it should squirt fuel in the venturi when you twist the throttle. 2nd, remove the fuel line at the carb and spray carburetor cleaner directly in and it could loosen the needle valve.
+1 Agreed
Thread Starter
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Cruiser
Joined: Jun 2008
Posts: 202
Likes: 1
From: S.E. Connecticut
It has to be the carb, right? I will pull the carb off and clean her up.
Tourer
Joined: May 2007
Posts: 322
Likes: 8
From:
pull the float bowl off and check your idle jet to make sure its clean. many times when a carb sits for a while the idle jet will become clogged and the bike will start with choke/enrichner or a few pumps of the accel pump and then die when you turn off the choke.
Tourer
Joined: May 2007
Posts: 322
Likes: 8
From:
another quick test is with the a/c off, soak a rag with gas and put it over the carb opening, if it fires up and runs, your prob is def carb.
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Thread Starter
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Cruiser
Joined: Jun 2008
Posts: 202
Likes: 1
From: S.E. Connecticut
it was the carb. Pulled off the bowl and cleaned everything and now it starts and runs like a champ. Not bad wiring job for a first time, got it all right!
It is really rich now though, had it tuned last summer when it was dirty and I think the idle jet was clogged. Now that it is clean I will have to retune it.
Thanks for the help guys.
It is really rich now though, had it tuned last summer when it was dirty and I think the idle jet was clogged. Now that it is clean I will have to retune it.
Thanks for the help guys.
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