Coleman utv 400 loses power uphill

[Goat Quilter]

We pout new belts cleaned engine and carburetor plugs you name it.  Drove down road no problem came back uphill no power won’t go . What’s the issue? 
 

could it be clutch? 
 

frustrated in shop more than in use on farm 

[Joe Breaux]

Are you climbing hill in high gear?

[Goat Quilter]

6 hours ago, Joe Breaux said:

Are you climbing hill in high gear?

No

[aefron88]

On 8/30/2024 at 7:38 AM, Joe Breaux said:

Are you climbing hill in high gear?

There's only a medum-high gear on the 400, its single speed

[aefron88]

OP,

Does the engine rev while trying to go up the hill, or does it slow down? If it revs up and you slow down your wet clutch is likely toast. If the engine just slows down its just a function of the machine being underpowered or not performing optimally due to some other issue. These things are not exactly powerful being 400 CC and weighing 1200lbs empty. Your options on the latter are to get a running start, or make your wife get out and push.

[Joe Breaux]

17 minutes ago, aefron88 said:

There's only a medum-high gear on the 400, its single speed

then with the underpowered  engine, that might be the issue..Did it always do this or is it recent development? I guess it has a  NO TOWING  warning on it?

[Greg Kilgore]

On 9/4/2024 at 11:42 AM, Joe Breaux said:

then with the underpowered  engine, that might be the issue..Did it always do this or is it recent development? I guess it has a  NO TOWING  warning on it?

As Joe asked, if it's just a recent development, could be a valve lashing issue.