mickymidas
High Number
2Ronnies sc , Nuneaton.....Promoting chuckleism to the masses
Posts: 232
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Post by mickymidas on Jul 9, 2012 20:12:09 GMT
Anyone shed light on why a dellorto 24/24 carb slide should start sticking ?...not all the time , about every 3 or 4 pulls of the throttle...have stripped / cleaned and rebuilt but still the same .
All ideas welcome....cheers
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Post by sbwnik on Jul 9, 2012 22:05:28 GMT
Daft question, but is your cable OK? I've known a frayed cable show the same effect.
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mickymidas
High Number
2Ronnies sc , Nuneaton.....Promoting chuckleism to the masses
Posts: 232
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Post by mickymidas on Jul 10, 2012 7:56:09 GMT
Brand new cable Nik , it's def the carb slide, sticks a bit when pushed in manually (ooh err  ) |
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bsr65
High Number
Posts: 114
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Post by bsr65 on Jul 10, 2012 9:20:30 GMT
had this recently on my mk1 p2, just worn carb body causing slide to stick, had a spare carb body so fitted old slide and was sorted. ive read somewhere recently that over/uneven tighting of the carb can distort it causing the sticking slide problem.
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vespasian
High Number
greater manchester
Posts: 235
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Post by vespasian on Jul 10, 2012 9:53:52 GMT
yes,ive had this prob too,had to change carb body ,0r slide to rectify
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mickymidas
High Number
2Ronnies sc , Nuneaton.....Promoting chuckleism to the masses
Posts: 232
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Post by mickymidas on Jul 10, 2012 11:00:22 GMT
Thanks chaps . warped carb body , due to uneven tightening has been suggested on scooterotica as well.
Tried slide in another old carb and was ok , so codged & bodged 2 u/s carbs into 1 good one.
Thanks for taking the time to answer.
xx mick
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Post by kru251 on Jul 10, 2012 12:48:46 GMT
Yeah, the carbs are only made of poor, cheap materials so can distort quite easily. Glad you've sorted it though. ;D
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Post by sbwnik on Jul 10, 2012 21:05:00 GMT
FTR I've had this in the past and backed the two fastening bolts back off a thou'... Or 'cracking the bolt' as it's known round where I used to live. It was a good short term answer, but I eventually cured it by putting too carb gaskets under the carb.
God knows why it worked, but it did.
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Post by kru251 on Jul 10, 2012 22:41:13 GMT
All bolts and screws have 'correct' torque settings.
An old saying in the aircraft industry when an apprentice was too lazy to check out a torque figure from the manual/aerofiche and just shouted out "What torque figure should the X,Y or Z bolt be tightened to" almost always got a reply of "Up to shear.................then back half a turn" !
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vespasian
High Number
greater manchester
Posts: 235
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Post by vespasian on Jul 18, 2012 20:24:14 GMT
you cant torque up the carb bolts on a modern px,they have allen key tightening.not sure wether you can get any other types?
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Post by kru251 on Jul 18, 2012 21:36:30 GMT
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