Hello 

We have a beta engine that has a stalling problem. It started a while ago when 
idling. After some investigation and replacing fuel filters to no avail we 
found a loose clamp on the fuel line which was letting air in. Problem fixed. 
Sort off. It ran well for a while, but then....... and the new problem may be 
unrelated to this air leak problem. 

Now it stalls if it has been running hard for a while and you throttle down 
quickly. It also stalls occasionally if you are idling and throttle up quickly. 
For example when you are coasting forward into a slip and then want to stop 
quickly by hitting reverse. Sometimes it can be difficult to start after a 
stall. Sometimes not. If you change the throttle slowly, either when 
accelerating or decelerating, it keeps running. Filters are clean and no 
obvious air leaks or diesel leaks. 

Any ideas? 

Thanks 
Don Jonsson 
Andante, Victoria 

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