I agree it's a great motor, Mark. It runs like a small one, but produces 5 hp: when it digs into heavy stuff, it's impressive.

I did have a warning in the other thread about what would happen if you tried to adjust the pilot screw or remove the head that keeps you from adjusting it, and sure enough, it happened. To get it out now you'll have to drill it axially for about 5 mm then use a tiny ezy-out (the smallest one that comes in a standard set should be about right). Then you can get a new pilot screw from Honda. It's a very simple operation under a small drill press, because the pilot screw is brass. You can also get a new idle speed screw from Honda of course, if you didn't re-tap the thread. As an alternative, once you remove the pilot screw, you could cut a screw-slot in the broken-off end of it and voila, an adjustable idle jet.


Last edited by grumpy; 21/10/12 08:10 AM. Reason: Add detail