How to check that throttle is opening 100% on 2021 Merc 150 4S?

[Johnnyred]

Hoping our moderator will chime in on this one.
How to check that throttle is opening 100% on 2021 Merc 150 4S?
Is this a DIY project?
Sorry if this has been covered previously if so plz direct me to the proper thread.
My SN is in my signature. Thanks.

[krindgen]

Dunno if you kin do that with VesselView. After I got the VV I got a fault code. Ended up the factory or dealer didn't have my Hotfoot adjusted properly relative to the engine at WOT.

[fishnfireman]

Has to be done on computer--- G3 diagnostic.
V6/V8 Fourstroke MECHANICAL Engines with Hotfoot: DEMAND LINEAR (bbcboards.net)

[Johnnyred]

No hotfoot just hand throttle if that matters

[mikesxpress]

Doesn't matter. Still has to be set on any CMS four stroke.

[Johnnyred]

... CMS = conventional mid-section?

[SilverFox579]

Don has already addressed this, see link fishnfireman posted above.

[mikesxpress]

... CMS = conventional mid-section?

Correct. A DTS engine doesn't experience the issues associated with mechanical setting of controls. Fly by wire.

[EuropeanAM]

This is a 4-cylinder 150. Physically check the throttle plate.

[Johnnyred]

Don, thx for your reply. Do you have instructions or a previous post detailing how I would check the throttle plate to confirm it is allowing max WOT.

[EuropeanAM]

I do not, but have checked a number of them. Disconnect throttle cable at the engine FIRST and move the throttle arm MANUALLY to make sure it physically "could" achieve WOT (before moving to the hotfoot or throttle and cable adjustments).

[Johnnyred]

... thx again, Don. I think I am going to schedule a service visit with you soon and drive down from Charlotte. Oil change, throttle plate check, etc.

[EuropeanAM]