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Name:	sagetek -	Reply
Subject:	Sea Doo plug fouling / breakin
Date:	5/5/2009 6:27:13 PM

Has anybody experienced spark plug fouling while breaking in a new replacement motor in a Sea Doo? This is a 2003 2 stroke RFI model. The owner's manual said to put a liter of oil in the gas during the first 15 gallon fill up (gives a 50/1 ratio as best I can figure from this alone, not counting regular injection oiling system). We did this, and after a hour and a half of easy variable throttle running with some extended idle (due to no wake zones), we apparently fouled one of the plugs. Would changing to iridium spark plugs help this, as we don't want to drain the gas and forgo the recommended procedure?
Anybody else experience this?
Thanks

Name:	dmp -	Reply
Subject:	Sea Doo plug fouling / breakin
Date:	5/5/2009 7:12:42 PM

I do this at the first of every season with our 2 stroke Waverunners and have never had a problem.

You might just have gotten some debris in the plug; be sure you are running the proper gap and heat range.

Good luck!

Name:	autiger -	Reply
Subject:	Sea Doo plug fouling / breakin
Date:	5/5/2009 7:37:25 PM

If you are putting oil in the gas and using oil injection during break in you are going to foul the plugs.Look at how much oil you are burning.Just buy some extra spark plugs until you burn your premix gas up.Then you might have to change them once a year.

Name:	UPSMAN -	Reply
Subject:	Sea Doo plug fouling / breakin
Date:	5/5/2009 8:40:03 PM

Putting double oil in for a new engine is correct. The excess idle is what fouled the plugs. Try to run the tank of gas out with out so much idle time if you can

Name:	HP HQ -	Reply
Subject:	Sea Doo plug fouling / breakin
Date:	5/6/2009 2:10:45 AM

is it a RFI or a DI? in the DI you dont double oil, if its an RFI, put plugs in it and just run the first tank out, and you will be fine.

Name:	sagetek -	Reply
Subject:	RFI
Date:	5/6/2009 6:48:05 PM

Name:	BigFoot -	Reply
Subject:	RFI
Date:	5/6/2009 7:03:16 PM

..sounds like you have already gotten good replies on this thread...I have a '99 RFI which I winterize each fall by spraying fogging oil into cylinders..then in spring, run it a while before changing to new plugs allowing the old plugs to take the fouling.

Name:	HP HQ -	Reply
Subject:	RFI
Date:	5/6/2009 9:43:22 PM

put a set of plugs in it and run it!! just get on it a bit, to clean the cylinders of the excess oil, run the first tank out and you will be fine from there, this is not an uncommon problem.

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