Natural monument level? BIMOTA SB3 (GS1000 engine) engine starting issue.

When we started the engine after a long time, it went “sputter sputter sputter~…”
according to the owner.

Let’s check the easy stuff first.

All four spark plugs are completely black.
Maybe having them all black is actually a good thing?

Well, let’s replace the spark plugs and check for spark.

This BIMOTA SB3 has a GSX1100SR harness plus AS Watanabe ignition installed, and supposedly no other electrical systems.

Strong spark on all four cylinders—OK.

We already have the tank on.

The CR-SPL starter lever was stiff, so we lubricated the sliding parts to smooth it out.

Tightening the air screw a bit seems to be working well.
We thought we’d take it for a test ride and call it done, but then it rained….

If nothing else comes up, we’re finished. Light work, thankfully…. supposedly (for now).

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