89 Octane cause engine light?

[Ebeo1]

I was running out of gas and I was running out of options so I pulled into the next gas station I saw and it only had 87 and 89. I filled her up with some 89 but not all the way about half tank to get me home. I went to use it today and I got it running sputtered a little on take off and felt under powered. At a stop sign it started running rough and I had to keep high RPM's to keep her running then at the next light it died on take off. About this time the engine light turned on and I was able to baby my buell home. I hope that maybe the gas station isn't exactly selling the best gas and coupled with the wrong octane I can just drain the gas and be on my way. Couple of questions running through my head

Would running 89 octane cause these many problems?

How do I drain the gas tank?

Do I need to got o a dealer to reset the engine light?

[rrh481]

The fuel pump on the rear of the frame has a Allen head bolt on the fuel pump plate unscrew that and let her drain.

[Loki]

Shouldnt

What he said

No

[squidbuellie]

no i run 89-87 in my 05 all the time with no problems
don't drain the gas (unless you put diesel in it) thats $15 down the drain, get some gas treatment if you want to make your self feel better.
and light "no"
some thing else is going on. check your codes

[BRatigan]

Check your spark plugs, its sounds like you fouled one.
I don't think 89 will necessarily foul a plug, just sounds like a plug issue.
BR

[crxtasy169]

Sounds like maybe just bad gas, or another complete separate issue but yes check the plugs.

[user_deleted]

that's what he said! sounds like hajji mart bad fuel and fouled plugs. link on here for NGK iridium tipped plugs. ballpark of $8 each but money well spent.

[Stevenc150]

NGK Iridium Spark plugs (DCPR9EIX) - Ran 89 in mine several times with no probs - Plugs first then drain the fuel if needed.

[Ebeo1]

Checked the plugs today and they are hard to get out not much room to work with. I had some black soot deposits on them but didn't look to bad so I put it back together and ran her still lacks power and chokes some. Something else I noticed was my air filter was pretty dirty I ordered a new one maybe thats the problem but its weird that it would start acting up so quickly. Like I had just filled it with bad fuel or something.

I got new plugs and air filter on order from ASB I'll get some fresh fuel in it and see where I stand when my parts come in. I'm hoping its a bad filter or bad gas in the case of bad gas I wonder if tis possible that it fouled up a sensor.

[anrkizm95]

sounds like it was hot out you were low on fuel and dumped cold gas on a hot pump.