I'm hoping GT or someone can point me in the right direction here. I have a 1995 202xr with the standard MP 454/Dominator Jet. My issue is that when I decelerate, the idle will stick at 2000 rpms or higher (seems to happen more often in  extremely hot weather). If I tap on the accelerator pedal a couple of times it will drop back down to 900-1000 rpms.  Obviously I checked (and lubricated) the foot pedal, cable, and linkage...no issues there. Last weekend while at Parker I even went to Napa and added a return spring to no avail.
I've come to the conclusion that I should probably replace the original quadrajet with an Edelbrock 1409 or 1410. 
Any suggestions/ideas?

I'm hoping GT or someone can point me in the right direction here. I have a 1995 202xr with the standard MP 454/Dominator Jet. My issue is that when I decelerate, the idle will stick at 2000 rpms or higher (seems to happen more often in  extremely hot weather). If I tap on the accelerator pedal a couple of times it will drop back down to 900-1000 rpms.  Obviously I checked (and lubricated) the foot pedal, cable, and linkage...no issues there. Last weekend while at Parker I even went to Napa and added a return spring to no avail.
I've come to the conclusion that I should probably replace the original quadrajet with an Edelbrock 1409 or 1410. 
Any suggestions/ideas?

The Edelbrock is 1/3 the carburetor the Quad is.  JMO.

How are your throttle shafts? Do they wiggle?

GT

The throttle linkage is stock...I thought.  Just pick this boat up in Canyon Lake in April.  I haven't messed with the linkage other than lub and the tacky return spring.  As for throttle shafts wiggling, I'll definitely check that out tomorrow.  Sounds like the quadrajet is worth rebuilding which I'm actually glad to hear.

I can pull the carb and drop it off for the rebuild GT if that is the diagnosis.

I don't care for the way the cable end looks, it looks like it's mounted too close to the carb.. Not coming out and calling it "wrong", but something looks McFunky.

Looking at the side picture, the throttle shafts look like they may be toast, I see a raw fuel trail on the intake.... The linkage bracket needs to move forward, it looks to ,me like the cable end can bottom out.

GT

Thanks for the quick replies Gents!  The throttle shafts don't wiggle, but it seems as though my problem is the spring on the secondary throttle shaft.  As suggested I'll rebuild this off season. 

Wouldn't have thought of that. I definitely will check the throttle plates. Once again thanks for the advice!