Ethanol plug in strange - Snowmobile Forum: Your #1 Snowmobile Forum

mat · 11-30-2012, 06:09 PM

Hi me again. I just took my sled out for a bit now that we have enough pow to play in (2008 800 dragon). I am currently running 91 octane 10% ethanol. When I first went out I had a bog in the mid range so I plugged in the pink and black wires. That pretty much cleared up that problem but then when I had it wide open for about 5 seconds it bogged on top end. After that, I again unplugged the ethanol circuit wires and tried again. This time it bogged on the top end after about 1 second of wide open. I can't figure out what is going on here. I would really appreciate any in put.

**smallengineguy** · 12-01-2012, 04:58 AM

If it's old fuel it's probably begun going bad. Drain it and refill.

mat · 12-01-2012, 06:11 PM

there was just a little old gas in the tank before I dumped 20 liters in soo I dont think thats the problem

Maybe I should try some additive

**smallengineguy** · 12-02-2012, 06:04 AM

You might need t oclean the carbs. Old fuel sits=bad fuel.

mat · 12-02-2012, 12:36 PM

It is EFI I guess I'll try running a few tanks of gas through it and see what happens it might eventually clear up :/ Thanks for the suggestions

ppolaris1010 · 12-02-2012, 04:18 PM

being an 08 800 have you had all the updates done on it and i would do a compression check just the littlest bit of bad gas will blow them things right up.

mat · 12-02-2012, 11:29 PM

I got it from a dealer on consignment and they said the updates were done. I did a test at the start of the winter, and they were 130 psi both sides.