Help to get a pk50xl to start

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Rs fruitbat
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Posts: 68
Joined: Sun Aug 24, 2014 10:11 am
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Hi guys , I really hope you can help me ,I bought a non running pk50xl and have been desperately trying to get it to run , I did have it running briefly but couldn't find its sweet spot regardless of how I adjusted the carb .

Here's a check list of what I've done , new cdi, new plug lead and cap , new spark plug , I've checked the stator ohms readings , I've checked the flywheel key way and crank key way , I've checked the timing on the stator plate , I've also stripped and cleaned the carb , new carb gasket ,the carb is a delorto 16/14 running 20 / 80 jets , ive fitted a new fuel line from the tap to the carb and mixed up some fresh fuel , fuel flow from tap is good ,I've also carried out a compression test which was also good .

For the last two weeks I've been trying to start the scoot ,the plug is a little wet and I've got a really good spark , I just can't understand why it won't fire ,it doesn't sound like it wants to fire :oops: any help or advice would be gratefully apricated thanks Kev.
holty
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Posts: 908
Joined: Wed Jul 15, 2015 11:52 pm
Main scooter: lambretta gp
Location: east yorkshire
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hi,
maybe you have an airleak, worn seals or a blown gasket, try a leakdown test. also check the sealing pad in the crankcase, if its been damaged a popular fix is a reedvalve manifold, polini make them,stops your induction mix going straight back out of the carb instead of into the engine.
holty
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