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Vespa px
Jan 7, 2017 15:34:38 GMT
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Post by paulmattb on Jan 7, 2017 15:34:38 GMT
Hi can anyone advise,I recently bought a 89 vespa px and took engine out for respray,I have put engine back in,connected the 3 wires,petrol and oil pipes,choke and throttle cables,but the clutch,gear and back brake cables are still disconnected,should it start without these cables connected? as it won't but it was running perfect before it was taken out,cheers
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Post by henri on Jan 7, 2017 16:46:07 GMT
so long as fuels getting thru an the red/green an white wires are connected to cdi it should start . take the plug out an lay it connected to ht cap onto a metal part of the engine an kick it over .look for a spark ,if sparks there check theres fuel getting to the carb . H
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Vespa px
Jan 7, 2017 16:48:47 GMT
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Post by paulmattb on Jan 7, 2017 16:48:47 GMT
Already checked for spark and the spark seems quite strong
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Post by henri on Jan 7, 2017 17:22:12 GMT
fuel then ,or maybe chokes not workin properly. sometimes if youve had tank out or line disconnected they can air lock an fuel wont flow . loosen the 10mm bolt holding fuel banjo to carb body an turn tap on ,soon as fuel weeps out turn tap off an tighten it back up. tap back on an choke out an kick it over 6-10 times .if not starting ,pull plug an it should be damp with fuel.if not it might be a sticking float or gummed shut needle valve were the fuels dried out in carb when not used.or same deal with blocked pilot or choke jet . H
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Vespa px
Jan 7, 2017 18:25:46 GMT
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Post by paulmattb on Jan 7, 2017 18:25:46 GMT
Cheers will have a look again tomorrow
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Vespa px
Jan 26, 2017 18:56:04 GMT
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Post by paulmattb on Jan 26, 2017 18:56:04 GMT
Got everything back together today,tried starting,it started 3 times but cut straight out,wouldn't start again,any ideas?
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Post by pxguru on Jan 27, 2017 3:00:21 GMT
You have tried a different spark plug? Sometimes they just don't work.
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Vespa px
Jan 27, 2017 11:07:07 GMT
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Post by paulmattb on Jan 27, 2017 11:07:07 GMT
I'll get 1 in the morning and try that,will let you know how I get on,cheers
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Vespa px
Jan 29, 2017 14:59:04 GMT
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Post by paulmattb on Jan 29, 2017 14:59:04 GMT
All sorted cheers for your help
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Post by scooterg on Jan 29, 2017 20:35:29 GMT
? Well ??.??.? Was it the plug,,,,,or is it a secret 😳
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Vespa px
Feb 3, 2017 7:21:37 GMT
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Post by paulmattb on Feb 3, 2017 7:21:37 GMT
It looks like it was the plug because with a few turns of the tick over screw after putting a new plug in its running fine Cheers all for the advise
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