Guys, need some help here please. I recently took the motor out my sportster le to remove a broken off starter motor collar. After putting the motor back in and dry testing it, everything seemed fine, so today I took out for a quick test, it did not go well.
After about 5 minutes of running fine, the motor then started running really rough, very slow speed and would not rev up, it did this for about 10 seconds and then stopped. The engine bay filled with exhaust smoke and a fair amount of water...after leaving it turned off for a few minutes, it then started again but still ran rough, I loaded it up and after getting it home it seemed to rev fine again when dry testing it. After inspecting the engine bay I noticed that the water regulator valve on the muffler seemed loose, so after the slightest tug it popped right off the muffler, and I could see that the housing on the regular where it attached/screws onto the muffler was melted. Just to add to the description, when the problem initially presented itself and I checked the engine bay it looked like water was leaking out the big rubber pipe that goes to the exhaust manifold(just before it exists out the exhaust outlet above the jet pump. I don't know much about mechanics, but after searching my manual I came across the following description regarding the valve "Water Flow Regulator Valve - A water flow regulator valve is mounted on the muffler so it can produce the maximum horse-power output and yet maintain the necessary di-ameter of the injection fitting at the tuned pipe head for unobstructed water flow."
See picture.
So would a faulty water regulator valve cause exhaust fumes to get stuck either in the muffler or the manifold? And would this also cause water in the exhaust system from escaping and hence flooding into the engine bay?
Thanks
Costas
After about 5 minutes of running fine, the motor then started running really rough, very slow speed and would not rev up, it did this for about 10 seconds and then stopped. The engine bay filled with exhaust smoke and a fair amount of water...after leaving it turned off for a few minutes, it then started again but still ran rough, I loaded it up and after getting it home it seemed to rev fine again when dry testing it. After inspecting the engine bay I noticed that the water regulator valve on the muffler seemed loose, so after the slightest tug it popped right off the muffler, and I could see that the housing on the regular where it attached/screws onto the muffler was melted. Just to add to the description, when the problem initially presented itself and I checked the engine bay it looked like water was leaking out the big rubber pipe that goes to the exhaust manifold(just before it exists out the exhaust outlet above the jet pump. I don't know much about mechanics, but after searching my manual I came across the following description regarding the valve "Water Flow Regulator Valve - A water flow regulator valve is mounted on the muffler so it can produce the maximum horse-power output and yet maintain the necessary di-ameter of the injection fitting at the tuned pipe head for unobstructed water flow."
See picture.
So would a faulty water regulator valve cause exhaust fumes to get stuck either in the muffler or the manifold? And would this also cause water in the exhaust system from escaping and hence flooding into the engine bay?
Thanks
Costas
