|
|
Post by nokturnal on Mar 31, 2020 2:15:05 GMT 1
Is there any reason to go with the 31K over 4L0(01) on a bike that doesn't need the vacuum?
I have an opportunity to buy a clean set of 31k carbs, but not sure its worth the switch.
If so, what's the advantage? Is the coated slide that much better? needle taper?
I do have an LC with a YPVS engine in it, running 4L0 carbs... would I notice a difference switching?
|
|
|
|
Post by rigga on Mar 31, 2020 11:30:06 GMT 1
31k carbs work really well on a 4L0, lots on here used them, mine ran very good, although I did use early needles.
Maybe they are a later Carb so less worn, a lot of the coating on the slides wears off over time, so don't think that's the reason they work well.
|
|
|
|
Post by nokturnal on Mar 31, 2020 11:51:13 GMT 1
Was a bit of a joke with the slide coating... 😉
|
|
|
|
Post by oldbritguy on Mar 31, 2020 21:44:50 GMT 1
I too am thinking of fitting a pair of 31k carbs onto a 4LO top end.
I have recently picked up a refurbished pair from Shytalk on here for my latest lc project so was wondering too about pros and cons.
I am keeping everything else standard(ish) and was wondering about cables etc but haven’t heard anything negative about these carbs other than their age
Would be nice to hear some recent thoughts on this
John
|
|
|
|
Post by dusty350 on Mar 31, 2020 21:46:53 GMT 1
I've used 31k's on my Lc's with no problems at all Dusty  |
|
|
|
Post by Tobyjugs on Mar 31, 2020 22:23:46 GMT 1
I don't think it makes much difference if jetted correctly.
|
|
|
|
Post by russie on Mar 31, 2020 22:28:21 GMT 1
So, to the guys running 31K carbs on LCs, do you use the 31K needles and emulsion tubes?
|
|
|
|
Post by 4l04ever on Mar 31, 2020 22:28:35 GMT 1
They are not really an upgrade, but more of a very similar replacement for the untrained eye. They are a good option if you cannot find any 4L0-01 carbs.
|
|
|
|
Post by Tobyjugs on Mar 31, 2020 22:42:08 GMT 1
So, to the guys running 31K carbs on LCs, do you use the 31K needles and emulsion tubes? Yes, but you need to adjust the carbs to suit your engine. These carbs give you lots of different options for fine tuning. |
|
|
|
Post by shaunthe2nd on Mar 31, 2020 22:43:18 GMT 1
You are running a hybrid anyway, so originality isn't king. I would stick with what you already have if they are working ok.
Don't fix what aint broke my old boss you to say!
|
|
|
|
Post by nokturnal on Mar 31, 2020 22:48:33 GMT 1
They are not really an upgrade, but more of a very similar replacement for the untrained eye. They are a good option if you cannot find any 4L0-01 carbs. This was my thought initially. Also... I believe, like the “1” barrels, we only got the 01 carbs here in Canada. |
|
