carb tuning.

rickie h · #1 (**permalink**) 11-17-2009, 02:24 PM

can someone tell me in detail as i know very little of engines how to tune my stock carb for max power output?

**Bikeguy Joe** · #2 (**permalink**) 11-17-2009, 04:19 PM

Fairly simple.
Look at your plug. What color is it? Oily and black? That's too rich. Move the small C clip up one notch on the needle that is in the middle of your slide.

If your plug is light gray, or white you will want to move the clip down a notch.

Check your plug after each adjustment.
That's about all there is.

freewheeling frank · #3 (**permalink**) 11-17-2009, 05:36 PM

io have found that the jets on these are huge and they run rich i am at 7000+ feet i mean my house is 7g i soldered my jets snd drilled with the smallest bit i could come up with i think it was a 120 were talking the size of a old mans hair and my plug still runs on the dark side but it did make an incredible difference, as i am about 30% of origonal jet size, i run my fuel at 32/1 as with it running lean i want plenty of oil as it gets colder i will try leaning the oil up some and watch it as spring gets here

Venice Motor Bikes · #4 (**permalink**) 11-17-2009, 06:29 PM

Before you try to tune or re-jet the carb, you should finish breaking in the engine by running about 4 gallons of gas though it, & if you plan to make any changes like a smaller sprocket & expansion chamber pipe, do them all first!! Otherwise, you'll have to re-tune it again!!

rickie h · #5 (**permalink**) 11-20-2009, 10:37 PM

Quote:

Originally Posted by Bikeguy Joe

Fairly simple.
Look at your plug. What color is it? Oily and black? That's too rich. Move the small C clip up one notch on the needle that is in the middle of your slide.

If your plug is light gray, or white you will want to move the clip down a notch.

Check your plug after each adjustment.
That's about all there is.

yay!but whats a slide and where is it

**BarelyAWake** · #6 (**permalink**) 11-21-2009, 05:38 AM

and when reassembling make sure the slot on the side of the slide lines up w/the lil pin on the inside of the carb else it'll jam;

**Bikeguy Joe** · #7 (**permalink**) 11-21-2009, 09:31 AM

Thank you!
...............

rickie h · #8 (**permalink**) 11-22-2009, 01:12 PM

ok so i moved my c clip up one and my bike now starts harder,dies if clutch is initiated and let go of, and runs for a short while before dying,is this normal and will it subside or did i mess something up?

**BarelyAWake** · #9 (**permalink**) 11-22-2009, 02:19 PM

The spark plug has a story to tell, you should listen to it before any of us

Quote:

Originally Posted by Bikeguy Joe

Fairly simple.
Look at your plug. What color is it? Oily and black? That's too rich. Move the small C clip up one notch on the needle that is in the middle of your slide.

If your plug is light gray, or white you will want to move the clip down a notch.

Check your plug after each adjustment.
That's about all there is.

It could be that yer bike was just cold, as you made the mix leaner - you'd need the choke (which makes it richer) to start it and keep it runnin' till the engine warms up... and/or yer idle is just set too low...

chopperjoe · #10 (**permalink**) 11-22-2009, 05:00 PM

taking the time to take such good pics, if theres a heaven they have a seat for you , thnx. chopper