If your going to lake Powel,  Arizonia does not require a sticker BUT Utah DOES. ( Utah Division of Wildlife Resoures ASI vessesl Temporary Certification )

 25 dollars for out of state visitors and you have to take a little test, takes about 20 minutes. They will mail you the sticker.

  Also, you have to print off two of the Temporary Certifications, Put one in the boat and one facing out on the front dashboard of the tow vehicle in the launch ramp parking lot.

It would be prudent to Get this a couple of weaks before your trip so your at home to get the sticker for the boat. Otherwise the copy of the certification will do when asked to show proof.

 My registration is CA but I boat in Utah a couple time a year. The sticker is mailed to the address the boat is registered at.  

The website states you can take the test using a smart phone if you are already in the state. Pay the fee  and show the cert from you phone. 

On 7/15/2026 at 12:00 PM, Woodski said:

These guys are very good at the calibration game and have done numerous factory cals:   https://www.technicalservicesin.com/mercury-marine/

Rudder does look bent in the photo, I would drop it out and do a bench check on it, the tendency is to bend at the base of the shaft and if bent along the shaft it will be stiff to rotate.  Disconnecting the steering cable and checking each component independently can isolate the culprit:  cable, rudder, helm.

Thanks for the info - I spoke with Alan there and he will do the original re-cal back to factory on the ECM.  Very reasonable as well.

My mom almost rented this in the spring for a family reunion, but couldn't work out the dates.   Looks like the owner has some weird date availability with all Saturdays booked in September, but a 2 day minimum stay....which makes no sense.   Anyways, just shows what is out there if we get enough people to commit.   

https://www.airbnb.com/rooms/50618977

Update:  The fuel pressure gauge I bought read accurately on my old 2004 GMC feed truck last night.  

I could not get to my shop to get the boat out due to heavy rain making it a swamp, but I will retest it as soon as I can.

2 hours ago, mikeo said:

I was working on a 2007 247 with MEFI5 383 and also couldn't get anywhere near 700° on DIACOM. It's not the correct way, but we ended up taking it out on the water (the hose flush couldn't provide enough volume for high RPM testing) to manually adjust the timing until the boat ran correctly without stalling or running rich. I don't remember the exact timing we left it at; I'll see if the owner took a picture or screenshot from DIACOM.
(added correct model year)

wow that sounds at least like an idea that might work!  Yeah if you could tell me what it ended up on the Diacom that would be helpful as a reference.