No one will work on my Yamaha 2 stroke - Twin Cities MN

[AZMark]

The zip ties are what typically fail...they get brittle and break. Then the oil lines fall off. If the oil lines are in good shape (still flexible with out feeling too soft or gummy) then you might get away with just putting on oetiker clamps in place of the zip ties.

Jet ski solutions has a good reputation for rebuilding the carb racks. It’s pretty easy to pull them off and send them in to be rebuilt. If your engines don’t start easily then it’s time to rebuild the carbs.

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Yamaha Exciter LS 2000 AR210 66H GP1200 65U Mikuni 44mm SBN type Precision carb rebuilding and restoration service performed to the highest quality level.

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Your avatar is you changing AN ENGINE and you send out your carbs?!! Sacrilege!

 

[AZMark]

And, I have learned, @the MfM is one of the 2-stroke experts around here. Listen to him.

Additional two bits of advice:
1) Take @Bruce 's advice this season and throw SeaFoam in it and see if things improve. At the least it should let you run the boat this season.
2) I used to be afraid of the words 'carb rebuild' until I did my first. Then it was a matter of 'what was the big deal'? I hear that your time is short. But if you run it this year (per 1), then pull the carb before you lay it up for the winter, you can have all winter to take your time rebuilding the carb (and @the MfM will correct me, but I think while you do one, you do two...). Pop them back on at the beginning of next season, tune them up, and go.

I think you will be glad you did. And, when you do it yourself, you know exactly how it was done and how clean everything got along the way.

Exactly.

There is no “tuning” when you rebuild a 2 stroke carb. You pull it apart, clean it, and swap out a few specifically shaped orings/seals/springs and a diaphragm. If it ran well before then leave the air & idle screws where they were & you’re generally good to go.


@MNYBoat - spark plugs on 2 strokes as well as these newer yamahas are a pretty common cause of running bad. You should replace those too, also easy DIY.

 

[the MfM]

Your avatar is you changing AN ENGINE and you send out your carbs?!! Sacrilege!

No, I do them myself. But for someone that doesn’t feel comfortable tearing into the carbs they have a good reputation.

@tdonoughue the boat has 6 carbs...each engine has a “rack” of 3 carbs which is easy enough to disconnect and send out to be rebuilt.

 

[tdonoughue]

(see? i told you he was an expert.)