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Well, the bike is tuned for 87 octane, and it runs well. If you use 91 or better, it really won't go any faster, just that the engine will run cleaner, and possibly smoother. If you want more performance, then you would have to adjust the timing. BUT, with the price of fuel, and if you drive a lot, better just to leave it as is. A tank here or there of 91 is good to do though.
What else can I help you with?
What octane is best for a 1984 Honda 650 Nighthawk?
All you need to use is 87 octane regular. The use of premium is a total waste of money and will provide no benefit whatsoever.
Best octane used for a 1984 Honda 650 Nighthawk?
All you need to use is 87 octane regular. The use of premium is a total waste of money and will provide no benefit whatsoever.
What is the weight of the galapagos hawk?
650-850g (23-30oz) (1.5-2 lbs)
How much does a 1983 Honda shadow 750cc weigh?
650
How many GL 650 Silverwing Motorcycles did Honda manufacture in 1983?
30000
Where can you find a batterie panel for a 1983 Honda Nighthawk?
firing order 1984 650 nighthawk
What is best fuel octane for suzuki ls 650?
What year bike? I use 87 in mine and I've looked into it like you are and everywhere I checked said 87 is the grade to go with.
What is the oil capacity of a 1983 Suzuki GR 650 Tempter?
The oil capacity for the GR650 Tempter is 2.8L.
What grade of gas is recommended for a 1999 Yamaha V-star 650?
Standard, regular, normal, basic fuel. 87 octane in the States, or 91 in Australia. If you use premium you are wasting your money.
Where is the fuse box on a 1983 Honda nighthawk 650?
under the head light right behind the horns (front of the bike)
How to check oil on a 1983 Yamaha Maxim 650?
a small round window rigt next to the back brake lever
1983 650 maxim why does it run rough when cold?
check the fuel air ratio, also check the choke settings.
