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Old 22 May 2012, 13:11   #11
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Country: UK - England
Town: chesterfield
Make: Quicksilver
Length: 4m +
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Ok dropped in today and found the following.
It runs but is very difficult to start and without the tick over screw turned right in it wont tick over.
Whilst its running it keeps spitting and back firing.
He says he has checked the fuel pump (i have seen it running another engine to be fair)
Has swapped the plugs checked timing 3 deg before tdc (does that sound correct) taken carb of agian and cleaned it all out.
Has anyone any ideas ?
Pete
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Old 22 May 2012, 13:59   #12
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Boat name: little vicky
Make: avon ex RNLI
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Possible read valves back of where the carb bolts to thr engine sticking or broken ,
Though could still be timing that's out or not sequenced with the throttle linkages .
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Old 22 May 2012, 14:01   #13
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Country: UK - England
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Sorry forgot to mention them.
They too have been removed,cleaned,and checked and refitted.
Pete
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Old 23 May 2012, 04:10   #14
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If you unscrew the adjusting screw /needle and take it out of the carb can you notice any rings or ridges around the tip of the needle point ,its usually made from brass and so is a soft metal
ridges can be made if it has been screwed in too far the seat then can score a ring or ridge around the tip which then makes adjustment hit or miss often with nothing inbetween .
Or is there any wear on the carb or seals / packing/gaskets that could be causing it to draw air.
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Old 24 May 2012, 15:58   #15
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Country: UK - England
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Well the good news is its done
They have had it running in the test tank for a few hours yesterday and it started first time today and has been running sweet as a nut all day.
So im going to collect it it the morning (but not before i see it running)
I will get a full run down and keep you posted what it was.
Thanks for all the replies and a BIG thank you to Peter
Pete
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