hello,just done a cheepie swap and got a boat with a selva 500/e (78153113).does thes numbers mean anything to anybody .where as the choke lever oprates the choke , on the end of the choke lever there is a small piston type thing that goes into a cylinder with a wire attatched to it ,is this some type of electric choke and can it make the engine cut out.this brings my main problem into the conversation,it starts ,will rev .but cuts out ,fuel does seem to be coming out of the air intake funnel,but the float in the chamber seems ok ,any ideas,thanks ..piperdog,