Yamaha 2004 40HP 2S RPM regulation

ofauchon

Recruit
Joined
Jun 2, 2008
Messages
1
Hi.

I bought 2Stroke 40HP 2004 Yamaha engine last month. It was working like a charm for a couple of days.

Yesterday, after only 5 minutes of run, the engine cut the RPMs. It was running well, but at slow speed.

My engine has 3 LED on the front which were all off, no alarm buzzer beep....

1. How can I test the LEDs and buzzer ? So I can be sure that's all ok.
Where is this buzzer ?

2. What can cause the RPM regulation (Temperature sensor , Oil sensor, dead LED or buzzer ? ) other things to check ?


Thx a lot
 
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