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Post by boost on Feb 16, 2016 16:53:31 GMT 1
hi all I've just got a Swiss model rd250 ypvs its just been uk registered and was wondering about where I can find info on this bike as it differs from the UK spec 250lc, and I presume as its the same shape as the UK 350 lc 31k model many parts will be inter changeable with this model, any help and info appreciated
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Post by Yogi on Feb 16, 2016 18:04:27 GMT 1
Welcome aboard mate If it's the same as mine,most parts are interchangeable  Matt |
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Post by boost on Feb 16, 2016 20:01:18 GMT 1
hi yogi mine is exactly the same even the colour, mines been standing a fair while although very clean with 9000 miles on the clock, got an issue with the carbs at the moment as it seems to bog down when pulling away, what sort of performance are these models capable of
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Post by Yogi on Feb 16, 2016 20:11:54 GMT 1
There alright as long as you ride it like you nicked it  |
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Post by boost on Feb 16, 2016 20:46:41 GMT 1
wheres the best place to get gasket sets for these plus other parts that are not inter changeable with the 31k
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Post by Yogi on Feb 16, 2016 21:16:20 GMT 1
Speak to Norbo who runs this site and the rdlccrazy shop From memory I rebuilt mine with a 31k crank and gasket kit Bottom end is the same and pretty sure the head and barrel gaskets are too Matt  |
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Post by Yogi on Feb 16, 2016 21:19:01 GMT 1
Everything is interchangeable but I think the exhausts,stator,carbs and cdi are restricted on the 250
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Post by wwwRD350LCnet on Feb 17, 2016 5:50:23 GMT 1
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Post by boost on Feb 17, 2016 7:47:14 GMT 1
so in fact then the swiss model is restricted to 39hp
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Post by wwwRD350LCnet on Feb 17, 2016 9:33:03 GMT 1
Yes you are right, it's written on the advertising brochure !
I own a '86 RD350F2 model from Switzerland (1WU model) and it was restricted at the inlet of the exhaust with a welded restrictor.
If your exhausts are restricted, then they should be stamped 31L-14711 and 31L-14721
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Post by kosaprasa on Feb 17, 2016 15:16:39 GMT 1
Everything is interchangeable but I think the exhausts,stator,carbs and cdi are restricted on the 250 stator and CDI are not, because all ( 250 or 350 ypvs ) have 29L ( 29K ), yes carbs are 29L, i had few engines from Swiss and allso 1WU |
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Post by Yogi on Feb 17, 2016 19:09:08 GMT 1
Everything is interchangeable but I think the exhausts,stator,carbs and cdi are restricted on the 250 stator and CDI are not, because all ( 250 or 350 ypvs ) have 29L ( 29K ), yes carbs are 29L, i had few engines from Swiss and allso 1WU I meant interchangeable if done as a set,ie stator and flywheel and electrics |
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Post by boost on Feb 17, 2016 20:21:19 GMT 1
I will check the exhausts at the weekend to see whats stamped on them and report back, thanks to all for the info so far
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Post by midlifecrisisrd on Feb 17, 2016 22:25:42 GMT 1
Speak to Norbo who runs this site and the rdlccrazy shop From memory I rebuilt mine with a 31k crank and gasket kit Bottom end is the same and pretty sure the head and barrel gaskets are too Matt Base gaskets are the same but head is different due to the smaller bores Think reed gaskets are different too All else should be the same. Think you should sell me yours ;-) Steve |
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Post by Yogi on Feb 17, 2016 22:38:49 GMT 1
Speak to Norbo who runs this site and the rdlccrazy shop From memory I rebuilt mine with a 31k crank and gasket kit Bottom end is the same and pretty sure the head and barrel gaskets are too Matt Base gaskets are the same but head is different due to the smaller bores Think reed gaskets are different too All else should be the same. Think you should sell me yours ;-) Steve I think your right  Thinking back I'm sure Norbo did swap the head gasket for a 250 one Can't remember him changing the reed gaskets though,but then my memories shot  |
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Post by boost on Feb 29, 2016 12:24:51 GMT 1
hi ive checked my exhausts and they are stamped 14711 and 14721 so it seems they are restricted pipes does this then mean that its likely there is a washer at the inlet welded in place, if so and if this is removed would there be much if any gain also does anyone know what the standard sprocket size is for front and rear, thanks in advance
bob |
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Post by wwwRD350LCnet on Feb 29, 2016 15:51:41 GMT 1
Hi Bob,
are they stamped 31L before 14711 and 14721 because all RD350LC pipes are stanmped 14711 and 14721 and the prefix 4L0, 31K, 31L, 1UA... gives the model.
Xavier
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Post by boost on Feb 29, 2016 20:02:15 GMT 1
hi Xavier they are 31L what does this signify
bob |
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Post by marsbar350 on Feb 29, 2016 20:33:53 GMT 1
hi boost
they are off a rd250 ypvs
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Post by wwwRD350LCnet on Feb 29, 2016 21:24:07 GMT 1
The equivalent Japanese RD250 YPVS '83 model "29L" was not restricted so since your pipes are stamped 31L it means they are different otherwise they should have been the same than Japanese market. So check at the inlet of the exhaust if there is a welded restrictor.
Xavier
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