Originally Posted by 1967brutus

Very happy to hear that the .40 responds well to the solenoid.

I still think it is not so much the size, as well as the fact that the engine is bushed, and there is more heat generated in that area. The 40 is bushed as well, but the larger mass of metal, as well as the larger fuel flow mitigate the issue. I think a ballraced .25 would work OK on the solenoid, and for me, your experience with the LA 25 will be included when other people inquire after a set.

But that is all less relevant, happy to see that the solenoid is doing its job, and I am sure you will find, after some careful tuning, a much cleaner running and better responding engine as the result.

Please keep us posted on your experiences, good or bad, so we can learn from the good things and help solve the bad things.