Re: 2301 WDO choke question

Posted by Terry S On 2017/7/17 15:34:21

Thanks for the quick reply.

The tube is attached to the exhaust manifold so that there is no exhaust leak into the stove tube, but the stove tube is open at the end under the exhaust manifold. Thus, the vacuum acting on the choke vacuum plunger is also pulling vacuum past the plunger and through the choke stove tube. This causes a vacuum leak stumble once the engine is hot.

Should there be vacuum through the choke stove once the engine is warm? Is the choke plunger supposed to seal in the down position when hot?