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Old December 6th, 2018, 08:59 AM   #67
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 dodgerdad View Post
PS I've experienced no hydro locking/whistling when riding and the stock fuel screen has been removed and replaced with a small inline filter.
That can also cause fuel deliver problems.

It does sound like you may have a problem with the petcock due to the fuel in the vacuum line, but because of the short fuel line from the petcock to the carbs an inline filter can often create a low spot that will cause flow issues.

Ducatiman usually recommends the stock filter inside the line at the carb inlet IIRC.
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