Raging engine, again!

[Rickcin]

Stabilizers also contain anti-oxidants which prevents the fuel from oxidizing during prolonged storage and subsequent varnish formation and sediment. A little 2-cycle oil will do the same thing.

So perhaps adding stabilizer to non ethanol fuel is actually causing the engine to surge?

 

[CaptFerd]

With that motor meeting Ca emissions the ports and jet system has the smallest possible holes to allow it to run. A piece of corrosion smaller than 1/10th a grain of salt in it or a layer of film will cause surging. Just fixed one yesterday. Although the carb can be modified to correct the problem its illegal and guarantees a revisit to the shop sometime in the future. This info is up front to the owner as Im not out to turn it into a scam.

 

[Rickcin]

With that motor meeting Ca emissions the ports and jet system has the smallest possible holes to allow it to run. A piece of corrosion smaller than 1/10th a grain of salt in it or a layer of film will cause surging. Just fixed one yesterday. Although the carb can be modified to correct the problem its illegal and guarantees a revisit to the shop sometime in the future. This info is up front to the owner as Im not out to turn it into a scam.

Well we can thank CA for all of their crazy regulations that often cause more harm than good️