Unfortunately my bike has leaned out with the result being a holed front piston and possible damage to the rear.
Now needs a full strip-down for repair.
Had changed from a Bendix back to the original refurbished Linkert DC7 a couple of months ago, it was running rich at idle but seemed OK on the high speed needle. there was not a lot of fuel left in the tanks and I was going up a hill when it happened.
Lost power for a few seconds, made a strange whoosh noise and stopped.
Away at work for a while, when home next I will start the process of dis-assembly for further investigation.
Not in any hurry.
Any recommendations for the best pistons and the like for the rebuild?