Home |
Search |
Today's Posts |
#1
posted to rec.boats
|
|||
|
|||
Yamaha F100 Carburetor problem -- baffled
Hopefully someone has a thought on this. The engine has four carbs. It is a four stroke 100HP. The engine will not start. A few days before the problem occured I used the boat for about 2 hours chasing stripers around the bay. The engines were turned on and off at least a dozen times. They seemed to be running just fine at the time. The next time I went to start the engines they started right up. However one of them would not idle. I tried to start it again and it started, rev'ed up but quickly stalled and would not start again. To find out while troubleshooting, I am getting plenty of gas pumped to the carbs by the two fuel pumps. But, (and this is the odd part) the float bowls are all empty. Not one or two or even three but all four! If I remove the hose that feeds the carburetor and remove the float bowl drain screw and blow into the hose as hard as I can it is apparent that the path is blocked (on all four carbs). I perform this same experiment on the good engine and I can blow air right pass the needle valve and out the drain. What could cause all four channels to clog simultaneously? If I have to take the carburetors off, of course I will. But all four are an assembly and not a trivial thing to do. Any thoughts, --Mike |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
suzuki vs. Yamaha warranty | General | |||
1997 Yamaha C115TLRV | General | |||
Yamaha 25 hp 2-stroke | General |