I think my bird is suffering from vapor lock. I've had the car out twice this spring and each time after running the car for about 20 minutes, it starts hesitating and bucking. Thankfully, I've been able to coast a good distance and change lanes until I can get it stopped on the shoulder of the road. Looking through the little window of the carb, I didn't see any fuel in the primaries. So I unhooked the fuel line at the filter, between the metal fuel line and the metal lines going to the carb. I wanted to see if the fuel was flowing, and it was. The fuel line had pressure to it, since the fuel came spitting out, but I notice it was very hot, and as it spilt onto the manifold, it was bubbling. I'm not sure it was bubbling because it was hot already, or because it was puddling on a hot manifold.
Anyway, I was wondering if the fuel is typically hot when its pumped from the tank to the motor. I'm going to look to see the route of the fuel lines to see that the lines is run the proper route to eliminate the possibility of the lines being too close to the motor, and being exposed to too much heat.
Would a carb spacer or carb heat shield also help?
Any other suggestions would be appreciated. Thanks
