Koshin SEV-25L Manuel D'utilisation page 11

After engine start, move the throttle lever to low speed position and warm up the
●
engine for about one minutes. As the engine become warm, smooth acceleration
will be obtained.
Since every part of the engine is not well lubricated at the starting, avoid
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increasing the engine revolution rapidly.
When the throttle is in full open position, the engine revolution becomes
●
considerably high, and that not only gives a bad effect on the engine life but also
cause the engine failure.
Revolution of the engine is already adjusted in best condition before dlivery.
Do not adjust revolution unless engine does not work well.
Use the low speed adjusting screw
●
to adjust low speed revolution
Right Turn:increase revolution
Left Turn:decrease revolution
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Carburetor is already adjusted in best
condition before delivery.
Operation
Carburetor adjusting
- 9 -
Low speed
low speed adjusting screw
EN
high speed