AMS SYNTHETIC 10W-40
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The Yamaha YFZ 450 is a light-weight sports all terrain vehicle (ATV). It has a high-performance four stroke engine and is one of Japan's most popular ATVs.
SAE 10w30 oil or Yamaha 4 Stroke Engine Oil
The Yamaha Motor Company produces the YZ450F. This is a type of motocross bike. It is widely credited to be the bike that started the four-stroke bike revolution.
Yamaha's Yamalube, 2 stroke oil should work pretty good
trochoid
a good quality 2 stroke oil
Yamaha's Yamalube, 2 stroke oil is a good choice.
oil filter number
If it is a 2 stroke use 80/90. Weight gear oil. If its 4 stroke run what specified on the engine
It has a twin, four-stroke engine type and its displacement is 392.00 ccm. Its compression ratio is 9.2:1 and has Êan expanding brake. Fuel capacity is 17 liters.
The fuel mixture for a Yamaha 40 hp 2 stroke outboard engine is 50:1, gas, oil mixture. You should use new gas when you get the engine ready for the season.