Warm start issue/05 150hp 2stroke carb

[Contender318]

Hi first time poster,

Just purchased a boat with an 05' 150hp Yamaha 2stroke carbureted engine. Generally the engine will cold start ok then after it is warmed up when I go to start it will give me some trouble, I will have to pull the choke and push it in before getting it started. While in higher rpm there are no issues but it can be a little finicky at low rpm while warm. Any ideas would be greatly appreciated.

Matt

[jimbliss]

New to you motor. Hard to start warm. Do a compression test first. The difference between the highest and lowest cylinder should be lest than 10%.
Good luck