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Old August 25th, 2021, 11:25 AM   #18
jkv45
Rev Limiter
 
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Name: Jay
Location: WI
Join Date: Jul 2013

Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes

Posts: A lot.
MOTM - Jun '18, Oct '16
Quote:
Originally Posted by DannoXYZ View Post
(SNIP)

These bikes ran perfectly when new leaving showroom floor. There's absolutely zero reason they won't run like that again if carbs are factory-fresh clean. In order to restore carbs to that condition, you'll need to do:

- complete disassembly to every last nut, bolt, O-ring and individual components
- scrub all parts by hand with various solvents (PEA-based ones work best)
- scrub petrol passages from tank to intake-valves with brushes of matching sizes
- ultrasonic soak
- micro soda-blast
- replace all rubbers, float-valves, float-bowl seals, fuel-rail O-rings, slide-diaphragms if needed
- re-assemble

If you don't have all this equipment and don't want to buy them all to restore one set of carbs to factory-fresh clean, then you won't get bike that runs like brand-new. Easier to send them to someone who has this equipment and experience to do restoration work to factory-fresh clean condition...
Most people (shops too) don't have the skills or tools to do a proper carb cleaning and rebuild.

Luckily, we have ducatiman...
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