98 sportster left motor stalls out at 3500 to 4000 rpm

[Albysure]

Sup all, when trying to accelerate the left motor stalls out at 3500 to 4000 rpms if I pump the left throttle it pushes through it and runs great. This doesn't happen all the time but I would like to solve this. Not sure if its running lean st the time it does this and doing harm to motor. Fuel lines have been changed for some time and both carbs have just been done..any advice is good for me...

 

[Dr Honda]

The carbs are plugged up... or you have a leak in the feed hose. Either way... it's probably going lean. (not good)

 

[Albysure]

Thanks for the reply. So should i do a cleaning then if i cant find a leak in feed lines. Im new to boating and pwc...Sorry for the childish questions...also when I'm flushing that motor out it idles at 3600 rpms compared to the right motor at 3000.