- Joined
- Jan 6, 2013
- Messages
- 101
- Reaction score
- 3
- Location
- Leander
- First Name
- Steve
- Last Name
- Wallace
This Saturday, late in the day, after believing I fixed the "stuttering" problem months ago, the fuel starving symptoms came back.
Original Thread, (http://www.twtex.com/forums/showthread.php?t=81713)
Since it was Sunday and I'm broke anyway, I took apart the petcock and seemed to successfully do my own Hurricane mod but without buying anything. (I've ruled out other stuff so it was time to look more closely it the petcock)
I took the diaphragm assy out, removed the o-ring from the plunger and took the spring off of the vacuum side of the diaphragm and moved it over to the plunger/fuel side of the diaphragm and reassembled the parts in their new configuration back into the petcock.
The cutting out at 4-5k steady rpms seemed to all but disappear, but since I felt it ever so slightly a couple of times, I'm left wondering. I didn't plug the vacuum port on the petcock, just on the carb sideof course, so I would have thought that if the diaphragm had a hole in it, it would be leaking a little bit of fuel through it, unless the fuel side is tight and the air side is not. But, no fuel leaking past the diaphragm, which made me wonder if the petcock is really the problem...
Time will tell and I will post again if I feel like I've fixed the real problem.
I had previously found little black bits in the fuel when I drained the float bowl, so I kinda wondered about the integrity of the petcock internals. Added a EM fuel filter to help keep crud out and all had seemed good, until now...
Original Thread, (http://www.twtex.com/forums/showthread.php?t=81713)
Since it was Sunday and I'm broke anyway, I took apart the petcock and seemed to successfully do my own Hurricane mod but without buying anything. (I've ruled out other stuff so it was time to look more closely it the petcock)
I took the diaphragm assy out, removed the o-ring from the plunger and took the spring off of the vacuum side of the diaphragm and moved it over to the plunger/fuel side of the diaphragm and reassembled the parts in their new configuration back into the petcock.
The cutting out at 4-5k steady rpms seemed to all but disappear, but since I felt it ever so slightly a couple of times, I'm left wondering. I didn't plug the vacuum port on the petcock, just on the carb sideof course, so I would have thought that if the diaphragm had a hole in it, it would be leaking a little bit of fuel through it, unless the fuel side is tight and the air side is not. But, no fuel leaking past the diaphragm, which made me wonder if the petcock is really the problem...
Time will tell and I will post again if I feel like I've fixed the real problem.
I had previously found little black bits in the fuel when I drained the float bowl, so I kinda wondered about the integrity of the petcock internals. Added a EM fuel filter to help keep crud out and all had seemed good, until now...