gas in an 90 fzr 600

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90fzr600nm
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gas in an 90 fzr 600

Post by 90fzr600nm »

ok so all my bikes ive owned so far have specifically said use premium unleaded gas... well after googling yamaha fzr600 i was reading an article where it said use normal 87 octane gas... so im confused and i was just curious what everone else is using... please take you time as i just filled my tank with 91 octane so its going to take alittle to empty it... thanks for all yuor info...

ps: the only upgrade i have is a vance&hines pipe... thanks...
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shredex
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Re: gas in an 90 fzr 600

Post by shredex »

I use regular unleaded....thats it.
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the_finch
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Re: gas in an 90 fzr 600

Post by the_finch »

I use premium (93 octane here in Dothan, AL), but I have a Factory Pro Ignition Advancer, and am worried about possible detonation. You should probably be good with just regular unleaded.
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1997 FZR600RJ

Engine: K&N Drop-in air filter - stock airbox - FP 5°ignition advancer - EBC "Street Racer" Kevlar clutch
Exhaust: Stock header - Yoshimura RS-3 Carbon fiber slip-on
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In the works: YZF600 header, '97 Bandit 600 rear wheel, DynoJet Stage 3, Racetech Springs and Emulators fork rebuild, FZ1 rear shock, YZF600 front MC, Galfer SS Lines, CFM rearsets
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mike94fzr600
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Re: gas in an 90 fzr 600

Post by mike94fzr600 »

I use regular unleaded 87
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tommyj27
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Re: gas in an 90 fzr 600

Post by tommyj27 »

My FZR got fed 87. Tried higher octane and didn't really notice a difference aside from a lighter wallet and slightly worsened performance.
PAFizzer600

Re: gas in an 90 fzr 600

Post by PAFizzer600 »

please please please please only run the recommended 87.

i run only sunoco or shell fuel and she doesn't feel quite right with anything more than 89
87 is the smoothest and best all around performance
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reelrazor
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Re: gas in an 90 fzr 600

Post by reelrazor »

Like he said ^ . Run the lowest octane you can get away with(no ping? it's good enough).

I have ign advance and have tweaked my cam timing for midrange, and jet quite lean. 87oct is good 85% of the time, but will ping high load, high revs so I use 89.
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M in KC
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Re: gas in an 90 fzr 600

Post by M in KC »

Run as low an octane with out pre-ignition/detonation as you can. If you're on pretty much stock setup run the 87 as the manual recommends. For folks that have their motors twisted up a bit tighter they will likely need a higher octance. Somebody really need to do a sticky on octane numbers and what they really represent. The higher the number is not necessarily better fuel. And AIRC up to 10% blended fuels are also acceptable in these motors. But again check the manuals that are online as they tell you there if your original owners manual is MIA.
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