Dellorto PHBH Atomiser question

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alanscottj
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Main scooter: Lambretta GP SS250 Casa
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I have now managed to get to a 148 main and the plug is a nice choclatey colour (up a slight gradient so under load) 148 does seem a little large? but the plug does look good?

Mid 1/4 to 3/4 looks a good colour too, even on a slight gradient under load :)
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox ๐Ÿ˜Ž๐Ÿ‘
li150ss2011
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so what is your full set up now, atomiser/needle and clip etc
alanscottj
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Joined: Fri May 23, 2014 6:54 pm
Main scooter: Lambretta GP SS250 Casa
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li150ss2011 wrote:so what is your full set up now, atomiser/needle and clip etc
148 main
AV266 atomiser
X4 needle 2nd clip down

Runs nice :D
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox ๐Ÿ˜Ž๐Ÿ‘
eden
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alanscottj wrote:
li150ss2011 wrote:so what is your full set up now, atomiser/needle and clip etc
148 main
AV266 atomiser
X4 needle 2nd clip down

Runs nice :D
sounds in the right ball park to me, one thing you didn't mention is what float jet you have in it.
what ever float jet you have in you can plug chop to find out if its big enough by doing a longer distance wide open throttle run, if its too small you will get a lighter colour on the plug than you get on a short wide open run.

Doing plug chops and riding it is a much better way to jet in than putting it on a non braked dyno IMO!
alanscottj
registered user
Posts: 960
Joined: Fri May 23, 2014 6:54 pm
Main scooter: Lambretta GP SS250 Casa
Contact:

eden wrote:
alanscottj wrote:
li150ss2011 wrote:so what is your full set up now, atomiser/needle and clip etc
148 main
AV266 atomiser
X4 needle 2nd clip down

Runs nice :D
sounds in the right ball park to me, one thing you didn't mention is what float jet you have in it.
what ever float jet you have in you can plug chop to find out if its big enough by doing a longer distance wide open throttle run, if its too small you will get a lighter colour on the plug than you get on a short wide open run.

Doing plug chops and riding it is a much better way to jet in than putting it on a non braked dyno IMO!
Cheers Eden, weather permitting I'll try and check out the float jet tomorrow. Been out for another ride tonight and she's running nice :D
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox ๐Ÿ˜Ž๐Ÿ‘
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