K&L pilot jets and idle speed

[edgo]

I just rebuilt my carbs on my 79SF and I used the dreaded K&L pilot jets. It ran like a dog off idle so I put the old pilots back in it. Will the K&L pilots make the bike idle high or did I have the butterflies open too much? I tried to sync it with the twist tie wire. I haven't reassembled it yet.

Ed

[Ken Talbot]

The bread tie pre-sysc will makle the idle way high - the buttterflies are open way too much. Use the idle speed adjustment between #2 and #3 to lower the idle back to around 1000 or so.

[edgo]

Thanks Ken. I'll put it back together tonight and see what happens. It sure has plenty of power now when you open it up. With the K&L pilots in there it reminded me of the powerband that my '76 YZ 125 had. Pretty scarey.

Ed

[edgo]

I put the stock pilots back in and it runs good off the bottom but it is blubbering some from midrange up. Are the K&L needles any good? It wants to idle fast at times and it seems to be running rich now. The exhaust is strong like it is getting too much gas. Should I go back to the stock needles?

Ed

[GNEPIG]

hey Ed, i would love to take you up on your offer of meeting up at the Croom but i sold my last dirt bike 2 years ago, no place to ride around here any more.. i've been missing off roading somthing bad lately and been keeping a half of an eye open for somthing cool and old to ride like a 73 ct175 i had once, it wasn't the biggest or the fastest but it was just fun

.. yes to putting the stock needles back in, i have never seen a set wear out on this style carb and if you put the knl main jets in replace them with the stock ones also [after you've cleaned them of course].. knl's carb parts seem to be made on mars so there measurements are all over the place and not the same as mikiuni's, i have noticed they are very cheap and inconsistantly made
.. let us know your out come