I cleaned the carbs on my Suzuki DT 250 yesterday by taking them off the engine and removing the float bowl and used spray on carb cleaner to rinse all of the varnish off of the interior of the carbs. I also removed the floats and needle valves and cleaned the jet openings and needle valves with the spray. I also sprayed the jet, or what appears to be a jet, that looks like it would pick up gas from the bottom of the float bowl. It's the part of the carb which goes through the hole in the float. I did not use new gaskets because they all appeared to be in good shape.
After I installed the carbs, I fired up the engine with muffs for the water, and before I reinstalled the carb covers or cowling. I noticed that the engine idles nicely, but every once in a while it sort of hiccups, and when it does a small amount of fire is visible in the throat of the carbs, one carb at a time, never in all of them at the same time. It was after dark when I got everything put back together and ran the engine. I have run this engine without the covers before and never noticed the puffs of fire in the carb throats before, but I have never run the engine after dark when they would be visible either. What do the experts on this list think is causing this, and do you think this could be considered normal for this engine? Thank You ahead of time for any help you can give me on this. I won't feel safe enough to go fishing until I've either fixed this problem or know that it's OK.
After I installed the carbs, I fired up the engine with muffs for the water, and before I reinstalled the carb covers or cowling. I noticed that the engine idles nicely, but every once in a while it sort of hiccups, and when it does a small amount of fire is visible in the throat of the carbs, one carb at a time, never in all of them at the same time. It was after dark when I got everything put back together and ran the engine. I have run this engine without the covers before and never noticed the puffs of fire in the carb throats before, but I have never run the engine after dark when they would be visible either. What do the experts on this list think is causing this, and do you think this could be considered normal for this engine? Thank You ahead of time for any help you can give me on this. I won't feel safe enough to go fishing until I've either fixed this problem or know that it's OK.
