V8 Full Throttle

[fishnfireman]

No problems with mine after getting it set correctly.
We had to removed idle stop screw to get correct rpm, then adjusted full throttle screw to attain 100%

[241]

Use a different shop. We set mine on a 2009 Hotfoot in July 2018 and it's still set over 2 years later.

Is that on the new 4 stroke?

[fishnfireman]

Is that on the new 4 stroke?

Yes sir.. Mike was one of the first I knew of.

[RGK456]

To again stress the importance of the Hotfoot IDLE STOP:

Hotfoot IDLE STOP is extremely critical on these engines- far more than previous 2-stroke models as the stop on the HOTFOOT at idle is the primary point from which all throttle settings will run.

If that throttle linkage doesn't come back to the same point each time... it will be incorrect when it adapts the next time (at keyup or startup).

My cable routinely needs lubrication where the cable exits out of the outer sleeve and connects to the hot foot. T-H said to use WD40 to lubricate the cable at that point (I had been using a dry lubricant that worked good), the spring is as tight as it can be and cannot be adjusted any tighter.

Question Don, when it comes back to the original idle position has the engine ECM recalibrated such that both idle and WOT are correct? Or once it doesn't come back to full idle position must the engine ECM be recalibrated for idle and WOT?

[EuropeanAM]

The PCM "adapts" the idle position each time the key is turned on and engine started. VERY critical it always be AT IDLE unless in gear and going somewhere.

Problem with not having idle set screw backed way up is that there is often not enough mechanical throw to achieve 100% (if idle position is not as far back as it needs to be).

Previous models were not quite as finicky... so techs tended to overlook the idle position entirely as long as it returned ok.

[lpugh]

I might add, do not even have your foot on the pedal when starting, any movement at all and the pcm will think this is closed throttle throwing off the entire throttle curve. Sometimes we get in a hurry and do this without being aware of it

[thommo59]

I might add, do not even have your foot on the pedal when starting, any movement at all and the pcm will think this is closed throttle throwing off the entire throttle curve. Sometimes we get in a hurry and do this without being aware of it

Thanks Leon, this being the case? If you did have your foot resting in it, would it then be as simple as turn it off, remove said foot, then restart?

[lpugh]

Yes sir, I would give it 10 seconds off time though

[thommo59]

Yes sir, I would give it 10 seconds off time though

Thank you !