Head gasket replacement

[monkeh]

If you can get the top of the injectors off on 5 and 6. You can get a deep socket over the body of the bottom of the injector.
Otherwise I found it easier to take the top off the pump. Just make sure you note how many threads are on the idle screw and fuelling screw. There's a spring to disconnect on the throttle linkage inside too. Access is so much better after that.