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pilot jet on 25mm PHBL

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pilot jet on 25mm PHBL

Postby bluebob » Sat Aug 03, 2019 10:02 pm

I am rebuilding a 25mm phbl carb which I stripped some while ago.can somebody tell me if the pilot jet simply screws into the carb body.Or does it go into some kind of emulsifier which I may of lost.Hope I am wrong but I feel something is missing.(and the dellorto diagrams don't help).Does anyone know please?
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Re: pilot jet on 25mm PHBL

Postby Toddy » Sat Aug 03, 2019 10:40 pm

Straight into the body the emulsion tube is on the VHSH type carbs
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Re: pilot jet on 25mm PHBL

Postby bluebob » Sun Aug 04, 2019 10:26 am

thanks Toddy
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Re: pilot jet on 25mm PHBL

Postby martyn dwane » Tue Sep 17, 2019 11:18 am

PHBL usually have a surge washer that fits onto the ali bit that the jet screws into.not sure if it`s actually needed ,but then why did Delorto fit it ?
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Re: pilot jet on 25mm PHBL

Postby bluebob » Sat Oct 05, 2019 9:21 pm

thanks Martyn.will look into that.the carb was put back on scooter early august and runs ok,but anything that improves it is worth trying.
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Re: pilot jet on 25mm PHBL

Postby Tractorman » Sun Oct 06, 2019 7:40 am

martyn dwane wrote:PHBL usually have a surge washer that fits onto the ali bit that the jet screws into.not sure if it`s actually needed ,but then why did Delorto fit it ?


I was told it was fitted to stop surges on scramblers and dirt bike, mine seems to run well without it.
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