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Old 23 May 2014, 16:33   #11
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If you have strong sparks, it is usually a fuel problem, fuel pump problem or a leaky seal. Can't see it being electrical, but stranger things have happened.
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Old 23 May 2014, 16:44   #12
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See pm
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Old 24 May 2014, 14:45   #13
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See PM
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Old 06 June 2014, 16:54   #14
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We'll after some head scratching and an amazing amount of help from Rib Teccie another Yamaha 55 Two Cylinder is running like a Swiss watch,the problem turned out to be a blocked carb,replaced with a good 50hp carb using 55hp jets and all is well.This man is a credit to the forum without his help I would have had an expensive anchor but now looking forward to Loch Lomond tomorrow.Thanks again.
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Old 06 June 2014, 18:15   #15
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It's true, the amount of simple faults that can cause engines to be written off before their time is incredible. Without parts and knowledge, the process of repair can be horribly frustrating or expensive. Just try not to blow yourself and the garage up next time!!! Enjoy Loch Lomond, boat engine & water, were designed for each other.
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Old 06 June 2014, 18:30   #16
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Well done RIB-Teccie.
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Old 08 June 2014, 17:46   #17
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Out on Loch Lomond today,engine runs like a dream,pulls cleanly up to red line and still wants to go.Then disaster struck,control box fell apart and had no throttle or gear selection managed to get back to slip manually working throttle with hood off,back to the workshop!
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