LCGB Forums

Hi Guys
I have a PHBH30 with a what I think is a power jet.
Main 135
Pilot 53
Choke 70
Slide 50
Atomiser AV 268
Needle ?
Float valve 400

The scoot seems to be 4 stroking on half throttle but takes off when I give it a hand full and runs nicely flat out.
This morning I took the carb off to se if the needle could be lowered anymore,but it is already on the last grove.
Is the small screw next to the idle adjustment larger screw for mixture adjustment throughout the range is will it only effect tick over mixture ?
Cheers

Hi mate run my ts with a av266 and x13 needle second clip from top dynoed by alan at diablo moto hope this helps . Revs well no four stroking. col

What exhaust?

bike grim wrote:What exhaust?

Exhaust is JL3 was fitted when I bought the scoot

col68 wrote:Hi mate run my ts with a av266 and x13 needle second clip from top dynoed by alan at diablo moto hope this helps . Revs well no four stroking. col

Agree with this, change atomiser to AV 266 and maybe even an X7 needle if still boggy mid range. Do plenty of plug chops though.

Rich'

Rich Oswald wrote:

col68 wrote:Hi mate run my ts with a av266 and x13 needle second clip from top dynoed by alan at diablo moto hope this helps . Revs well no four stroking. col

Agree with this, change atomiser to AV 266 and maybe even an X7 needle if still boggy mid range. Do plenty of plug chops though.

Rich'

Ok will give it a try.
Cheers

You say its power jetted, can you confirm? I tend to run AV268 Atomisers with x7 in PHBH on TS1's

dscscotty wrote:You say its power jetted, can you confirm? I tend to run AV268 Atomisers with x7 in PHBH on TS1's

Yes, I am sure it is a power jet, it has a tube coming from the float chamber I seem to recall connected to some sort of jet on the side of the carb near the intake.

Doesn't sound like the standard power jet on this type.

Maybe post a picture?

ROClarke wrote:

Rich Oswald wrote:

col68 wrote:Hi mate run my ts with a av266 and x13 needle second clip from top dynoed by alan at diablo moto hope this helps . Revs well no four stroking. col

Agree with this, change atomiser to AV 266 and maybe even an X7 needle if still boggy mid range. Do plenty of plug chops though.

Rich'

Ok will give it a try.
Cheers

Fitted the AV266,what a difference,runs much better in the low rev range.

Agree with this, change atomiser to AV 266 and maybe even an X7 needle if still boggy mid range. Do plenty of plug chops though.

Rich'[/quote]
Ok will give it a try.
Cheers[/quote]
Fitted the AV266,what a difference,runs much better in the low rev range.[/quote]

Glad to hear that mate, keep an eye on your plug colour,

Rich'

Rich Oswald wrote:Agree with this, change atomiser to AV 266 and maybe even an X7 needle if still boggy mid range. Do plenty of plug chops though.

Rich'

Ok will give it a try.
Cheers[/quote]
Fitted the AV266,what a difference,runs much better in the low rev range.[/quote]

Glad to hear that mate, keep an eye on your plug colour,

Rich'[/quote]
Not checked plug colour yet,enjoying the new drive ability too much!

be carefull............................. do what uncle Rich says yoof

hullygully wrote:be carefull............................. do what uncle Rich says yoof

Nah it is fine no pinking or anything,but just to keep you happy I will check it,what am I looking for ?

ROClarke wrote:

hullygully wrote:be carefull............................. do what uncle Rich says yoof

Nah it is fine no pinking or anything,but just to keep you happy I will check it,what am I looking for ?

I think the lads mean do some plug checks through all throttle ranges to see its ok in all areas

I cannot seem to get the plug colour the nice chocolate colour, even when it is 4 stroking the electrode is light brown but very wet and the outside of the plug is black and wet.
The scoot is running much better now though and I am tempted to leave it but part of me would like to get the pug colour right.
Any help appreciated