dead spot on throttle advance 496 ho
 

When winterizing i noticed there is a dead spot when advancing the throttle on my 496ho . As i advance, it will slowly advance to 1000 rpm and then its dead till 2000 rpm where it just jumps to 2000. I cant run it at 1500 rpm , Its 1000 or 2000. But seems to be normal above the 2000 mark.
Any thoughts, think its throttle position sensor.

I believe, you are on track.

Noticed that today with mine. Does the exact same thing. Can move throttle up to about 1000rpm then it jumps right to 1800 to 2000rpm. I wonder if it is normal for it to do that? Winterized mine today so i wont be restarting mine for a few months :(

just had mine running today also and it did pretty much the same, always has, when under load it doesn't do it at all, just reving in neutral

The min i can run is like 2800 under load so i never really noticed any problem. It must not have done last time i ran it out of the water as i did not notice it. I also noticed this year as i was comming off of full throttle a few times it seemed like that motor would come down at a different rate than where the throttle was till i slowed down alot towards cruising rpms 3400.

mine does something similar it doesnt seem as drastic, it's probably just the ecm going into closed loop or something of that nature

I wonder if it is normal for it to do that? Winterized mine today so i wont be restarting mine for a few monthshttp://www.rrce.info/song9-9.jpghttp://www.pqnw.info/a114.jpghttp://www.rrce.info/song9-5.jpghttp://www.rrce.info/song9-4.jpghttp://www.sbqg.info/10.jpghttp://www.rrce.info/song9-10.jpghttp://www.ryzu.info/5.jpg