Engine:
Temperature differences between the left and right side of
the cylinder almost always ranged between 10-15 ° C. Sometimes it was the right
and sometimes the left side that showed higher temperature.
The engine, which is known to us as the fastest and best running one for years,
had compared to the other three KS 750 always 10-20° less temperature.
Measuring point between 1st + 2nd fin see photo A.
Road trip with 70-80 Km/h 120 - 135°C
Off-road trip easy terrain 110 - 120°C
Difficult terrain, long steep mountain pass 180 - 210°C
The magneto showed - compared to the
engine temperature -always a temperature which was approximately 50% of the
engine measuring.
After the engine is switching off the magneto heats up another 20-30 °.
This explains the frequent starting problems with a hot engine.
However, we
had no problems to start at these temperatures, because we all have good
ignition coils in our magnetos.
Measuring point on right hand side see photo B.
Road trip with 70-80 Km/h 60 - 70°C after 5-10 min. 80°
Off-road trip easy terrain 60 - 65°C after 5-10 min. 80°
Difficult terrain, long steep mountain pass 75 - 95°C after5-10 min. 110° *
* Engines started even then without any problems.
We have tested our ignition coils and had the first misfire only at a temperature
higher 140 ° C.
Old coils that we tested had the first misfire at 85 -95 ° C.
Conclusion:
the old coils need to cool down to 40-50 ° C in order to work again.
Road trip with 70-80 Km/h 110 - 120°C
Off road trip easy terrain 80 - 90°C
Difficult terrain, long steep mountain pass 120 - 130°C never more than 130°
A.
B.
