Originally Posted by No Worries
I think loose or tight valves will be heard constantly. If it only makes noise when climbing, it sounds like pinging. SV's have pretty high compression. If you are using regular gas, it could be detonating. Try some premium gas first or octane booster.
This could be a VERY good possibility!! At the end of the riding season last yar when gas prices sky rocketed I started using regular 87 since that is the minimum rating the SV can use. I ran 93 ever since I owned the bike until the end of last year. I will switch over to 93 to see if this works.
I also contacted speedwerks this morning and addressed this issuse and here is what Brian had to say:
It's pretty much impossible to diagnose a noise over the internet. You really need to take it to a good mechanic and have them check it out.
However, with that being said, if you have never had the valves checked, I would do so. Immediately.
If that noise is one of the valves, the next noise you will hear is the valve breaking, then dropping into the motor, then destroying the piston, head, and other valves.
- Brian Roach