ANLAF
XS650 Guru
Fellers, any ideas on this leak?
I turn on the fuels and the left carb starts to drip fuel from the UNI filter. Took filter off and see the fuel is coming out of the the pilot inlet (as named in the Carb Guide).
This bank of carbs is 78-79 BS38s, and the pilot hole is the lower left of the five intakes you can see on the back of the carbs.
Things I have tried:
1. checked all screws correctly tighted.
2. checked float bowl gaskets are in order.
3. cleaned with carb cleaner.
4. checked floats.
5. checked the floats correctly adjusted.
6. tried swapping good floats from second bank of carbs
7. checked the float needle pin is working properly.
8. tried using pins from second bank of carbs.
9. checked float needle seated properly.
10. checked the slide needle operates properly.
11. swapped around the float bowls.
I have repeated these things many times, tried variations, interchanged, but still leaks - HELP.
In the Carb Guide it mentions a potential float system defect but this is in pre-'78 carbs where the float chamber is vented at the bottom of the float bowl through a brass pipe seated in the float bowl, which opens above the correct fuel level. The 78-79 carbs do not have this vent.
I have installed my other bank of carbs and they work fine, but they are for my other XS650 so I am desperate to fix this problem.
Thanks
ANLAF
I turn on the fuels and the left carb starts to drip fuel from the UNI filter. Took filter off and see the fuel is coming out of the the pilot inlet (as named in the Carb Guide).
This bank of carbs is 78-79 BS38s, and the pilot hole is the lower left of the five intakes you can see on the back of the carbs.
Things I have tried:
1. checked all screws correctly tighted.
2. checked float bowl gaskets are in order.
3. cleaned with carb cleaner.
4. checked floats.
5. checked the floats correctly adjusted.
6. tried swapping good floats from second bank of carbs
7. checked the float needle pin is working properly.
8. tried using pins from second bank of carbs.
9. checked float needle seated properly.
10. checked the slide needle operates properly.
11. swapped around the float bowls.
I have repeated these things many times, tried variations, interchanged, but still leaks - HELP.
In the Carb Guide it mentions a potential float system defect but this is in pre-'78 carbs where the float chamber is vented at the bottom of the float bowl through a brass pipe seated in the float bowl, which opens above the correct fuel level. The 78-79 carbs do not have this vent.
I have installed my other bank of carbs and they work fine, but they are for my other XS650 so I am desperate to fix this problem.
Thanks
ANLAF