Yamaha F225. Timing belt and ignition timing question.

pmp1986

Seaman Apprentice
Joined
Aug 13, 2016
Messages
34
Hi, friends,

I try to check ignition timing with timing light (strobe) as specified in workshop manual, but got a strange thing: 1 cylinder blink as . ... . . ... .. .. . ... ... .. . . . . . .. . .. at idle, when i adjust rpm it blinks smth. like . .. ....... .. .... ....... .. . ...... It looks chaotic. When i check 2 cylinder it blinks just as any other motors i checked previously like ........................... The same thing happen at 3,5 and 4,6 cylinders.
I've replaced ignition coils to check whether it's similar and they show same effect.
Might be it's OK for yamaha to pass some ignition moment?!

Also i checked timing belt and it looks like it's sagging even when tensioner it "on". But when i start to rotate manually it becomes strain again.

Best Wishes
 
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