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mlts22's avatar
mlts22
Explorer
Jan 12, 2016

Worth seafoaming a Yammy 3000 iSE before replacing carb?

Due to real life events (layoffs, friends and relatives in ICU) , I have not had time last year to do the usual upkeep on things as I should normally. Pulled out the generator, starts at full choke...
John_Joey's avatar
John_Joey
Explorer
Jan 23, 2016
The reason why you decarbonize a non fuel injected engine is because the carbon gets so hot it does a pre ignition of the air/fuel mixture. That is the reason for the knocking. Ignition occurred prior to TDC causing the piston/arm to ever so slightly go backwards making the knock.

Seafoam would have done the same thing, and may or may not have been cheaper then the OEM stuff.

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