Banshee engine noise when cold idle

[mr. matt]

Hi all. I have a bone stock 05 banshee. When it is cold, when I start it, while its warming up, it makes a ticking noise. It sounds as if its coming from the left side of the engine. As soon as it idles for 3-4 minutes, it just stops making noise all together. It will never make a peep again until it sits for a few more days, and its cold outside. Then its the same routine. It sounds like a rattle, but its not at all. Engine runs super. Pushing 125psi in both cylinders. Again this thing has super low hours, and completely tight, and stock. Any ideas? Thanks

[BigRed350x]

Hi all. I have a bone stock 05 banshee. When it is cold, when I start it, while its warming up, it makes a ticking noise. It sounds as if its coming from the left side of the engine. As soon as it idles for 3-4 minutes, it just stops making noise all together. It will never make a peep again until it sits for a few more days, and its cold outside. Then its the same routine. It sounds like a rattle, but its not at all. Engine runs super. Pushing 125psi in both cylinders. Again this thing has super low hours, and completely tight, and stock. Any ideas? Thanks

 

 

If it only does it when its cold, it could just be cold bearings. If you don't have any other signs or symptoms, I'd just give the bike a good once over and not worry until it gets worse or shows some other signs. Have you checked your plugs to make sure they look ok? Pull your stator cover off and take a look at the flywheel and stator and make sure nothing is out of place there. It could also be piston slap - caused when you have excessive piston to cylinder clearance, and it could stop making the noise once the piston warms up and expands and takes up the excess clearance. Check your pistons/cylinder clearance and see where its at. Your stator side might just be a few thousands larger than spec. Just be sure to let it warm up slow and give your pistons time to heat up and expand to their tolerance.

 

- Jared

[mr. matt]

Yeah, I think its just wierd is all. Think of a card going over bicycle spokes but much quieter and at an even pace. All of a sudden its just stops, without reving it up, or anything, just letting it idle. Just stops completey like a light switch. I would think piston slap would "fade" away as at an idle, the piston is slowly warming. Do reed valves flutter or make noise ever?