fastassyamaha
Member
is it ok to run 87 in a 97 sx 700
KING OF THE LAKE
New member
Yes you can run 87 octane but there is a greater chance for engine failure due to lower octane. I always ran premium with a touch of klotz octane booster just to be safe. Todays fuel quality sucks and isnt good for our two stroke sleds. Bottom line is run cheaper gas to help save some money and then hope it doesnt come and bite you in the *** later. My personal feeling and experience is too run premium grade when ever possible - higher octane resists detonation which leads to piston burndown.
SWEDE
New member
I was told by my dealer that its recommended in the sx 700, as long as you don't have pipes or the head gasket mod.I know the srx requires premium though.
yamaha98sx700
New member
Higher octane has a lower combustion temperature, so if the engine doesn't require a higher octane the higher octane will build carbon in the combustion chamber.
daman
New member
If you look in a owners manual i bet it will say 88 or HIGHER...
i would use a higher grade than 87 maybe 89..
i would use a higher grade than 87 maybe 89..
FuzzButt
New member
Funny my owners manual says 88 as well. I wonder where I can buy 88 octane? 
akrievins
New member
Maybe Japan?!?
I run 91 octane. Petro Canada (save 2 cents when ya use the card) lol.
I run 91 octane. Petro Canada (save 2 cents when ya use the card) lol.
FuzzButt said:Funny my owners manual says 88 as well. I wonder where I can buy 88 octane?
yamaholic22
Active member
just run regular unleaded, 87 octane from a gas station that sells a lot of gas so that you know its fresh and you will be fine.
blue missile
New member
never buy fuel when the truck is sitting there unloading.
yamaholic22
Active member
blue missile said:
Very true, dumping the fuel into the tanks causes sediments and water to get riled up into the fuel, and can get pumped out when you're pumping fuel in your sled.