07 Wake 155 runs rough until warm up

[flyboater]

Runs rough then great
I have an 07 Wake 155 SeaDoo PWC.
If it is not run for a month, it runs very rough when first started and continues until it is warmed up. When I open up the throttle, it hestitates, goes, hestitate, goes ... until I run it for a few minutes. It then eventually runs great and continues to run great for the rest of the day even if it cools down.
Even the next day it runs ok.
Then, if it sits a couple of weeks, it does the same thing.
Last time, I had a hard time getting it to start the first time, but then started on subsequent attempts. No lights or indicators, battery fully charged, happened with several tanks of gas.

Other info: around 80 hrs, I've had them since new and this just occurred this season.
I have an identicle PWC with the same hours (always used together) and it runs great.

Any ideas? Clogged injectors, maybe?

 

[Falcontech]

Try and replace the plugs. This should take care of your issue.

 

[Dennis]

I'm with Falcontech. Replace the spark plugs. (3) NGK DCPR8E
The 4TEC is not known for injector problems but they are known for spark plugs misfiring for no other reason than the ski has been sitting for a little bit.

 

[flyboater]

Replaced plugs

Thanks for the information.
I replaced the plugs but have not had a chance to get on the water. I'm anxious to try see how it runs but it's winter now.
However, if we some nice days I'll go out in LA Harbor. Not bad with a wetsuit.

I'll post results after I take it out.

 

[flyboater]

I replaced the plugs and that did the trick. Both SeaDoos are running great.

 

[KK40384]

Good to hear that fixed your problem. I keep a set of new plugs in the tool box at all times. These 4tecs eat plugs like its going out of style.