Combustion motors

Chilly as this early morning was, AD motor in air-cooled VW Super Beetle declared some lack of fuel volume in Solex 34PICT3 carburetor, but intentionally leave I it's symptom of lean mixture untouched nand unadjusted. 3 days cold weather after 4 days warmer ones, we call it in this season, "3 kan 4 on" and the repeating would last till 20th March every year, also we do, "Atsusa Samusa Mo Higan Made."
Now, I admire again the capability of a computerized recent automobiles, because they can fairly control and automatically adjust all the environmental changes. Fully mechanical and conventional carburetor system suggests the fact.

I'm going to play with OS 46 LA motor that has no clank shaft supporting bearings in stead plane metal brass ones. As a matter of fact, we could be released from the threatening of bearing rust. Actually, I do not recommend the necessity of ball bearing supporting construction below 13,000 rpm operation of ordinary uses. Thanks to omitting heavy bearing, we can obtain much lighter power source with some similar power. De-tuned motor, LA series has a tendency to have smaller venturi in spite of bigger passenger port diameter(8,50mm for 46 crank shaft), so, the carburetor throat diameter could be enlarged to the same value. On the other hand, 2C carburetor for 21 car model has 7mm throat that is the same value of 60 FSR first generation, so determined I to set this smaller designed for 21 carb. onto 46LA.
Omitted schnurle scavenging main port would be engraved also gas way for that would be done inside the case that is a similar task with 25LA.