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04 Yamaha 1200 cc Waverunner Alarm?

Bought this waverunner from a guy and it will only run 35 mph top end. Dealer said either the carbs needed overhaul or the catalytic converter was bad but didn't know which (either way it was $1200 for the carbs or $1200 for the cat.). It started to clear out a little late last year and run a little faster (47 mph) so I was thinking carburetors. I decided to run some Seafoam through it and hopefully clean the carbs out. I took it out today and received an alarm indicating "Exhaust". May I now assume the catalytic converter is bad?

2 Answers

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  • 1 decade ago
    Favorite Answer

    chief is right about the D-plate and chip, an easy way to check is to remove the sensor from the top of the exhaust and see if it is broken or burned badly. I have seen instances where the reeds have been burned when the cat. goes, so don't be surprised if this doesn't fix it completely, also be sure to use all new gaskets.

    Source(s): 10 years Yamaha PWC tech
  • maler
    Lv 4
    4 years ago

    in the experience that your keen to probability somewhat, take it to a qualified marine mechanic for a mechanical inspection. expenses approximately $one hundred, and it may assist you be attentive to precisely the concern is and what needs completed to repair it, and how the final condition is. they could desire to even have the skill to signify you on a honest value for it. yet, definelt in no way ever purchase and %or boat with out it working and in a position to do a attemptcontinual on the water, and you're able to desire to do the mechanical inspection on any used %or boat to make confident oyu arent being suckered into paying for junk.

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