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Old 15 June 2013, 10:29   #11
Dhf's Avatar
Country: UK - Wales
Length: no boat
Join Date: Jan 2012
Posts: 1,012
Service complete, conclusion was the throttle position sensor was partially siezed in the fully open position, therefore not allowing a spark to accure, so the mech took it off and cleaned and lubed all the moving parts, and the sensor works fine for now, the engine started with no trouble when refitted, but I will need a new sensor sooner or later, so will order one this week, been quoted 80, but if anyone knows cheaper be much appreciated.

The mechanic also noticed fuel leaking from the engines solid state fuel pump, the primer bulb was solid and the leak was only really noticable when extra pressure applied to the primer bulb, but the mech said the leak would cause air to be drawn in through the fuel pump, or leak whilst in use and posibly cause a fire, so it seems I need a new fuel pump aswell now, he phoned his suppliers S coast marine and was quoted 300, so once again if anyone knows cheaper be much appreciated. I'm thinking could it be just a gasket or something repairable? or could I get a decent 2nd hand one even?

As for the sensor that must have jammed open when I pushed the control all the way forward and back, previous to attempting to start the other day, I usually do this before ignition to make sure the cables are running smooth, so when I returned to neutral after doing this, the sensor thought engine was still on full throttle.
I'm thinking maybe I should start another thread for parts?
Thanks again for all advice

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