Question about 2005 Suzuki ST 250 E

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No Gas Symptoms

Hey all, A couple times with my new bike, I've tried starting it and it wouldn't or it would just die while I'm on the interstate. It seems like this is because I have low gas, but sometimes when I switch over to reserve, it doesn't help right away. My question is, what are all the symptoms that I would need to switch over to reserve? Are they different for different bikes? Is it bad for the bike to wait until is starts acting up before switching over to reserve? Thanks.

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Your normal setting should be at ON. The fuel flows when there is engine vacuum and is off when there is no vacuum. It's a safety feature - the gas doesn't flow if you crash...and the gas doesn't flow (and flood your crankcase) when the bike is off. Like rockstar said - it will feel like a loss of power - you might literally twist the grip and wonder why nothing is happening, Have a feel (practice) for where your valve is and how it turns from ON to RES. A twist to RES will start the fuel flowing. (So long as you're rolling down the road with the clutch out so the engine is turning making vacuum - remember) If it's taken you a while to recognize the problem and get the valve turned - it'll take seconds - minute (?) to refill the carbs and catch back up. PRI - that's for the bad news that you already know to be fact - you ran out of gas and walked to the station and bought a can and walked back. There is no way to make vacuum with a dead engine; and the carbs are dry. PRI is the setting that does not require engine vacuum to flow fuel. It is made to prime the carbs after the system has run dry.

Posted on Nov 20, 2008

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