OP
UTC

Lurker
Primavera 50 4v
Joined: UTC
Posts: 2
Location: Madison, WI
 
Lurker
Primavera 50 4v
Joined: UTC
Posts: 2
Location: Madison, WI
UTC quote
We were gifted a 2015 primavera 50 4v that had 62 original miles on it and had not run in 3 years. When we got it home it would not start. Now we have gone over the entire carb and replaced the plug and gas and it will now start and run. The issue we are having is that when you start it, it idles VERY high. I can adjust the idle screw all the way out and it doesn't change. I have not played with the fuel mix screw, but I am wondering if that is my next item to check. Any thoughts?
Thanks
@berto avatar
UTC

Molto Verboso
2006 LX150 (carbed) | 2007 GT200
Joined: UTC
Posts: 1945
Location: Toronto
 
Molto Verboso
@berto avatar
2006 LX150 (carbed) | 2007 GT200
Joined: UTC
Posts: 1945
Location: Toronto
UTC quote
Hello and welcome!

I would perhaps suspect an air leak. Is the carb seated and clamped correctly? Air filter in good shape? Cracked rubber anywhere?

Another thought is this throttle cable binding, or something like that?
OP
UTC

Lurker
Primavera 50 4v
Joined: UTC
Posts: 2
Location: Madison, WI
 
Lurker
Primavera 50 4v
Joined: UTC
Posts: 2
Location: Madison, WI
UTC quote
I have not checked the air filter, but I will look at that next. The carb was taken off, cleaned and reinstalled with the same issue, so I'm thinking its seated correctly, but I'm not positive. I'll also do some spray testing for air leaks and check back. Thanks for the input!
@pinkscooter avatar
UTC

Addicted
GTS 250ie Super, Italjet Velocifero, Scarabeo 150, S50, ET4, ET2
Joined: UTC
Posts: 717
Location: Winston-Salem, NC
 
Addicted
@pinkscooter avatar
GTS 250ie Super, Italjet Velocifero, Scarabeo 150, S50, ET4, ET2
Joined: UTC
Posts: 717
Location: Winston-Salem, NC
UTC quote
Mine does the same until the enricher closes, idles around 4000rpm. If it keeps doing it after the enricher closes check hoses and the intake. The intake on my Primavera looked fine until I found a small crack underneath it that let air into the engine. New intake and it idles and runs great once it warms.
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