|
|
Post by davyt120 on Jan 30, 2014 2:59:57 GMT 1
Newbie here !! Use site quiet a bit but just been in background, and I must say site is ace !! Bought an EU 250lc a while ago and really just got round to messing with it, Carbs on bike are marked 4l1 00 which I think is correct for a 250 , confusing bit is that the main jets appear ( my eye sights failing ) 160, is this right  Haynes says 190,, bike is a 1984 model but would expect bits to of been sourced from anywhere,, |
|
|
|
Post by Tone on Jan 30, 2014 6:59:55 GMT 1
According to the Genuine Yamaha Workshop manual the 250 4L1-00 carbs should be fitted with 190 main jets as you say. 160 main jets were fitted to the early 350 4lO-00 carbs.
Tone
|
|
|
|
Post by wwwRD350LCnet on Jan 30, 2014 7:41:17 GMT 1
Hello sorry it's in french (I will update my site with English) but abbreviation are the english one:   |
|
|
|
Post by sunsetrider02 on Jan 30, 2014 10:38:09 GMT 1
Hello sorry it's in french (I will update my site with English) but abbreviation are the english one: Ah, something I can finally understand!!  |
|
|
|
Post by brownsauce on Jan 30, 2014 11:14:21 GMT 1
I've got 200s in mine, which is standard apart from a small amount of porting done by the last owner and it runs great. To be honest it a science I don't fully understand so whilst its running right I'm leaving well alone.
|
|
|
|
Post by davyt120 on Jan 30, 2014 23:33:09 GMT 1
Thanks guy's it's got me puzzled for sure, only rode it once and it was flat as a Fa*t
|
|
|
|
Post by spooner on Mar 26, 2020 11:07:43 GMT 1
Newbie here !! Use site quiet a bit but just been in background, and I must say site is ace !! Bought an EU 250lc a while ago and really just got round to messing with it, Carbs on bike are marked 4l1 00 which I think is correct for a 250 , confusing bit is that the main jets appear ( my eye sights failing ) 160, is this right Haynes says 190,, bike is a 1984 model but would expect bits to of been sourced from anywhere,, Davy , My 250lc from Germany also came with 160 mains ,what was youre decision in the end about leaving them the same or going with the 190s ? |
|
|
|
Post by shaunthe2nd on Mar 26, 2020 14:04:33 GMT 1
As far as I'm aware, most of the German 250's were fitted with restricted 4L2 carbs and 4L2 exhausts, so if you have a 4L1 carb it may have been added later.
160 main jets were used on early 350 4L0 00 carbs, later uprated to 220's with the $l) 00 type. Just check your carb isn't the early 350 pne. It could be just the jets were changed.
also check you haven't got the 4L2 exhausts on it. If so, you may want to change or modify those.
|
|
Haynes says 190,, bike is a 1984 model but would expect bits to of been sourced from anywhere,,
