When I change the standard needle jet (106) to a 107, gives that the same affect as raising the needle one notch

John

email (option): john.kater@chello.nl

Well the 107 is certainly a bigger jet and will therefore allow more fuel through. I couldn't guess at the needle to notch thing though. Ron

email (option): ronpier@talk21.com

Hello John,

I do nor think that the effect would be the same:

If you change the needle to one stage higher, (One notch lower)
You would start to get more fuel in the mixture a bit earlier than with normal setting,
Whilst if changing to a bigger jet, you would get a greater flow all the time,
Plus- maybe the standard needle would not be able to block it as needed,
Resulting with too rich idle mixture.

My guess, anyway...

Cheers,
Noam.

email (option): noam10@gmail.com

Basically, yes - it is similar to raising the needle (not certain about 1 notch though...?).

The effect is greater at low end of the rpm range - I've used bigger NJ's to avoid the expense of a slide with a smaller cutaway (may need some fiddling with pilot jets).

Most NJ's after a few hours use are anything but the original size ......

What are you trying to achieve ?

email (option): ginantonik@tiscali.co.uk

It is not possible for me to get a good idle : the enginge stalls anytime and with the throttle up to a quarter open the enginge jerks. There is a no. 3 slide and the fuel level is good.

John

email (option): john.kater@chello.nl