Pit Bike Club

jburton46 · 08-02-2010, 09:43 PM

right, the clip is on the highest notch of the needle and the mixture screw is turned nearly all the way in (about 1 turn out)

what jets do i need to change ?

**Despise** · 09-02-2010, 03:05 AM

Quote:

Originally Posted by jburton46

right, the clip is on the highest notch of the needle

that would be making things leaner not richer

Quote:

Originally Posted by jburton46

the mixture screw is turned nearly all the way in (about 1 turn out)

what jets do i need to change ?

mixture will only do your idle.
what carb and engine you got?

jburton46 · 09-02-2010, 04:31 PM

i have a thumpstar 125 engine and a mikuni carb (think its a copy)

**Despise** · 09-02-2010, 04:37 PM

well you shouldnt need to go up by much, the pilot shud be fine but you should get the top end sorted 1st.

buy yourself 97.5, 100 & 105 mains, you shouldnt need more than that

katoom · 09-02-2010, 04:53 PM

What size main is in it now?

jburton46 · 09-02-2010, 04:55 PM

Quote:

Originally Posted by katoom

What size main is in it now?

is there a way to check ?

and this is a pic of my carb

http://www.pitbikeclub.co.uk/garage/index.php?n=5033

jburton46 · 09-02-2010, 04:52 PM

is there a way to check what size jets i have in currently ?

katoom · 09-02-2010, 04:54 PM

Quote:

Originally Posted by jburton46

is there a way to check what size jets i have in currently ?

Should say on the jet.