Ts1 NK jetting

[lou]

Hi all if anyone can point me in the right direction for a ballpoint starting point jetting on
Standard TS1

Standard TS
30 mm VHSH dello
NK road pipe

Cheers

[jet225]

Dynoed a few years ago, but very similar. 225 TS1,30mm VHSH carb, JL3 exhaust.

60 pilot (plus idle tube,standard supplied I guess.Sometimes they are omitted), 152 main jet, DP266, K5 needle 2nd clip down, matched transfers, no airfilter....

Hope that helps..

Regards

AL...

[lou]

Thanks ... That's Handy as I have dp266, no k5 needle ,, I do have a k8,
I'm not to far away

[jet225]

OK, glad its helpfull... The set-up I sent you was a standard supplied carb from Reedspeed (west mids) after telling them the engine spec. I had my GP dynoed after fitting the carb, always advisable, all it needed was a quick Jerome (owner of Reedspeed) needle feetle (light sanding) to get it to run as smooth as silk... So the jetting is pretty close....
As for your K8 needle, be mindful that the numbers don't represent a 'close to' the next needle. Check out the Dellorto website for the actual profile differences between K5 and K8..

AL

[jet225]

Just to re-itterate the needle differences..i once used a X12 needle in a 30mm PHBH carb on a 200cc engine many moons ago... After a blown piston (8 miles down the road), I realised the X12 was a mile away from the X13 needle, which was much richer (I should have started with)... You learn from your mistakes..!!

AL...

[lou]

Getting a bit confused with with jetting
Vhsh
Nk exhaust
Ts1

Af recommend U16 needle but most are saying k needles???? Which are the better option

[Norrie Bodge]

Look here regarding needle charts

http://www.lambrettaspares.com/pages/do ... EEDLES.pdf

[lou]

K needles seem to be longer than U needles ..... most seem to favor Ks, maybe a dyno is the way to go cant keep chucking different needles etc to get the right combination !!