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gday out there,my name is mark and i have a 1999 softail.All going good until one fateful day the idle would drop from around 1000 rpms to just barely ticking over at the lights.would idle fine for 20 secs then drop.Other wise the bike ran fine.Took out carby,cleaned,blew out jets,blew out carby fuel and air circuits with cleaner and compressed air.put in new inlet manifold and carby mount gaskets.Checked stator,regulator and battery with volt meter.Checked coil.2.2 ohms across primary and 10200 ohms across main coil.spec say 2.5 to 3.1 across primary.will the .3 ohms difference be a problem.got any thoughts out there.will be much appreciated.
Assuming everything is in order with no intake leaks or clogged carb circuits, symptoms indicate the VOES either has a vacuum leak internally or with the hose that connects it to the manifold. Or as likely, it is losing ground (earth) intermittently. Two wires on the VOES - one is simple ground, the other connects to the ignition module. It is a simple on/off switch and affects ignition timing dramatically at lower rpm.
Again, that's assuming there are no intake leaks between the heads/manifold or carb/manifold. Those leaks can be elusive and just because the gaskets were changed doesn't guarantee a leak free arrangement. Check the voes wires before going any deeper and hopefully it'll be a simple fix
Did you remove the timing cover and check for this? More likely to cause the problem you described than the carb.
Also, not a good idea to be blowing pressurized air into passage ways of the carb unless it is totally stripped down. You can dislodge tiny "O" rings and delicate stuff making your problems worse.
Assuming everything is in order with no intake leaks or clogged carb circuits, symptoms indicate the VOES either has a vacuum leak internally or with the hose that connects it to the manifold. Or as likely, it is losing ground (earth) intermittently. Two wires on the VOES - one is simple ground, the other connects to the ignition module. It is a simple on/off switch and affects ignition timing dramatically at lower rpm.
Again, that's assuming there are no intake leaks between the heads/manifold or carb/manifold. Those leaks can be elusive and just because the gaskets were changed doesn't guarantee a leak free arrangement. Check the voes wires before going any deeper and hopefully it'll be a simple fix
First item entering my mind, timing change loading the engine
Assuming everything is in order with no intake leaks or clogged carb circuits, symptoms indicate the VOES either has a vacuum leak internally or with the hose that connects it to the manifold. Or as likely, it is losing ground (earth) intermittently. Two wires on the VOES - one is simple ground, the other connects to the ignition module. It is a simple on/off switch and affects ignition timing dramatically at lower rpm.
Again, that's assuming there are no intake leaks between the heads/manifold or carb/manifold. Those leaks can be elusive and just because the gaskets were changed doesn't guarantee a leak free arrangement. Check the voes wires before going any deeper and hopefully it'll be a simple fix
thanks for that mate.I had the voes out when I took out carby to clean.Have a pingle petcock,so took the T piece off the voes and ran vacuum directly from voes to back of carb.Didn't realise the voes affected timing at low revs.have sprayed wd40 around inlet gaskets,with no change.going for a ride today.if its still playing up,will get carby out of the way and check voes.
Did you remove the timing cover and check for this? More likely to cause the problem you described than the carb.
Also, not a good idea to be blowing pressurized air into passage ways of the carb unless it is totally stripped down. You can dislodge tiny "O" rings and delicate stuff making your problems worse.
gday heyman.my last resort will be to drill out timing cover rivets and have a look,which is getting pretty close😄i stripped the carby down as far as i could before i blew it out.thanks mate
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1999 softail evo not idling
