I’ve altered the exhaust slightly by incorporating a 10mm copper 90º bend, I found that as the silicone pipe heated up with the engine running, it tended to collapse slightly at the apex of the bend so restricting the gas flow. I have to admit that I didn’t notice any change in the engines performance but decided that it’s better to be safe than sorry.
Connecting the remote glow lead to the plug can be a problem with Lasers, along with most other four strokes, because the plug is recessed quite a way into the head; there are many methods used to make this connection, this time I’ve used the threaded section from a 3mm “quick link”. A very short bolt holds the solder tag and the rest of the 3mm tapped section pushes tightly over the plug post, being made of “springy” metal the threaded section can be adjusted slightly if necessary to ensure a tight fit by squeezing with a pair of pliers.
The power lead is sheathed in silicone fuel tubing for heat proofing.