Post by jesus on Jul 24, 2011 17:41:55 GMT
This procedure is one I figured out from working on my '93 D6. It may also apply to the D9 but I have no experience with them so it would be helpful if a D9 owner could confirm.
Prior to 1996 the XJ 600 was fitted with a vacuum operated fuel pump. If you've left your Divvy stood long enough for the float bowls to evaporate you will have found that it's nigh impossible to get started. The reason for this is that turning the tap to PRI only primes the pump, it does not prime the carbs. The starter motor does not generate sufficient vacuum to get fuel into the carbs and if you sit there with your thumb on the starter you're going to kill your battery or, worse, your starter motor. If you've got a Haynes manual you will have probably read the recommendation to upgrade to an electric pump. I present here a less drastic option.
Prior to 1996 the XJ 600 was fitted with a vacuum operated fuel pump. If you've left your Divvy stood long enough for the float bowls to evaporate you will have found that it's nigh impossible to get started. The reason for this is that turning the tap to PRI only primes the pump, it does not prime the carbs. The starter motor does not generate sufficient vacuum to get fuel into the carbs and if you sit there with your thumb on the starter you're going to kill your battery or, worse, your starter motor. If you've got a Haynes manual you will have probably read the recommendation to upgrade to an electric pump. I present here a less drastic option.
- Firstly spread out a rag under the tank because you're going to be dripping petrol.
- Disconnect the hoses that go from the tap to the pump and from the pump to the carburetters.
- Now connect the tap directly to the carbs. I wanted to use a longer hose for this but I couldn't get the existing hose off the carbs so I had to settle for balancing the tank on the frame at a scary angle.
- Turn the tap to the PRI position. Optionally remove the drain screw from one of the carbs to confirm that fuel is reaching the float bowl. If nothing runs out you've got problems.
- Once the carbs are primed, put the fuel lines back the way they were (remember to turn the tap back to ON before you start pulling hoses!) and prime the pump.
