Jim gave you some good ideas. I'd suggest removing the front engine cover (after you disconnect the battery) for a closer look and listen. The best...

• All high performance air-cooled engines should have the highest octane you can find. Octane helps prevent spark knock that can easily damage your en...

What is making the noise I can't say, but obviously the new flapper valve is sealing VERY well. The old one was probably allowing some air back into t...

What’s not working: Starter does not engage when button pushed. Horn. I’ve just repaired the brake master cylinder as it lost all its fluid, I don’...

Welcome ! I'm not overly familiar with the /5 key switch to help you to spot common issues common to that physical piece. So I simply have to skip...

REALLY take a close look at your jets..... At one time I had a jet that you could see light through just fine... BUT it still did not work.... It turn...

Same 3 rules apply: Fire. Gas. Compression. When was the last time you adjusted your valves ? Because tight valves will have this effect.

Obviously, I'm in front of the computer with my hair in curlers and my bunny slippers on, and not looking at my dash... ► But the light comes ON fo...

And the spark plug ?

Visually inspected the L spark plug wire. Paul - You can't see the issue with ignition parts. If the parts are over 5 years old, then replace the...

How long has this bike been sitting ? Good mixture or not, I'd first remove the float bowls and look for a brown lacquer color coating the bottom o...

It may be, I simply don't think of Lithium in those terms. What ever you choose, a synthetic may stand up longer. I think the issue is mainly old spri...

Lithium is waterproof, but not especially noted for high temp. Don't you have some black wheel bearing grease ??

I can now get a good nights sleep. LOL M Not so fast ! You are now the living Dellorto expert. 👿