657 SBT engine ringing sound

[itsmarta]

My SBT 657 engine has about 40 hours on it and at idle speed it has a ringing sound in it. It sounds like something inside is loose. I use premix 40:1. What would this ringing sound be and is this normal or abnormal? Its on a 93XP. I don't remember it being this way when I first installed and ran the engine.

thanks

[1fastski.com]

Re: 657 SBT engine ringing sound

they all sound like a bucket of bolts lol have somone who knows skis to listin to it , you might want to check your jetpump it will wine if low or out of oil .