Manual adjustment

Photoshop 5,5 does not accept Microsoft MS Gothic and MS mincho JIS2004, newly installed by way of Web font support (KB927489) is the reason, so reported in the site.
As a countermeasure I chose different font Impact Regular bold type, then PS accepted as some letter insertion in the photograph.

In case of an incomprehensible problem, Web site is very helpful on earth.
Because the fundamental problem based on the software installed by way of downloading cannot be defined by ordinal people who is not specialized in the specified field.

The change of idle mixture to richer direction on VW 1302 Super Beetle causes eye-opening difference on transient characteristics, very interesting for me, comparing with 4 cylinder WEBER twin carburetor setting, the transient is relatively understandable, because the mixture control is done by a single adjusting screw on Bocar 34PICT3 carburetor.

The burned color of plus terminal ceramic part is the best sign to know the combustion condition.

Remembering some past scenery at CHELM Ibaragi, as the mechanical engineer said the idle mixture was not adequate with rough rotation.
Comparing the past the condition at idle speed is far improved, more precise adjustment would be continued.

The amount of idling fuel supply affects on all the higher rotations and transient on the way. Stumbling and hesitating phenomena almost disappeared.

Common sense and it goes without writing as it is, recirculating lubricant plays an important part of cooling, some foggy fuel came from intake valve cools the piston head while the operation also.

So the lack of enough fuel supply causes critical piston top melting and making hole in the worst. Recent researches proved that the elimination of heat spot in the cylinder head construction is the key to success of a new designing.