jackup
Thrash Merchant
Of all the things I've lost I miss my mind the most
Posts: 388
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Post by jackup on Oct 24, 2011 19:37:41 GMT 1
I just saw this statement on ebay about 10w full power barrels is this correct "hi .. all rd125lc barrels have stamped 10w.. most of them are from 12a frames.. the full power 10w barrels are hard to get hold of... if your barrel has y1 or y2 on the right hand side of it.. its restricted... if its got NO number it is FULL POWER! and should have a 90% inlet.. and the full power barrels had a wider transfore ports.. ANY INFO ..rd bill 07816038437"  ? Item number 270839978859 |
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Post by jaylee22 on Oct 24, 2011 21:22:42 GMT 1
didn't think the barrels where restricted? ? if they were for the british market and restricted they would be stamped 12a but they never restricted the barrels that's why they are 10w.i thought the y1 and y2 could of been a mould number? i could be wrong? |
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Post by mellow on Oct 24, 2011 21:39:41 GMT 1
Hi. All square type barrels ie mk1 & 2 rd125lc have 10W00 stamped on them. Cast near the reed block on the right hand side of the barrel is either Y-1 or Y-2. Y-1 being the mk1 Y-2 being the mk2. To be full power you would need a mk1 10W pipe,CDI and a 10W00 Carb. Hope this helps  |
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jackup
Thrash Merchant
Of all the things I've lost I miss my mind the most
Posts: 388
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Post by jackup on Oct 24, 2011 21:54:54 GMT 1
Can you still fit a y2 to a mk1 and vicaversa
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Post by mellow on Oct 24, 2011 22:14:38 GMT 1
yeah i believe so |
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Post by looey on Oct 25, 2011 9:11:28 GMT 1
Well........................... My matching numbers 10w MK1 obviously has a 10W-00 barrel BUT...... it has NO markings at all on the rhs near the reed block (probably why it so fast compared to yours Mellow  ...... ha ha ha  ). I also have here in my spares several barrels marked Y-1 and Y-2. Some pople have said that some barrels were restricted but I'm not so sure, as the 12a I had when I was 17 with just an Allspeed pipe and needle raised one clip was at least as fast as the 10w I've got now and this one goes very very well. |
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jackup
Thrash Merchant
Of all the things I've lost I miss my mind the most
Posts: 388
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Post by jackup on Oct 25, 2011 11:18:55 GMT 1
my mk1 has y1 on it but has a 10w carb,cdi and micron and seams as fast as i remember them to be, it would be intersting to put a 10w with no markings on it to see if there is any diffrence
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Post by gerumgoin on Oct 25, 2011 18:29:41 GMT 1
Hi. All square type barrels ie mk1 & 2 rd125lc have 10W00 stamped on them. Cast near the reed block on the right hand side of the barrel is either Y-1 or Y-2. Y-1 being the mk1 Y-2 being the mk2. To be full power you would need a mk1 10W pipe,CDI and a 10W00 Carb. Hope this helps But also do you need a barrel with no markings on like Looey has said to be full power ? |
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Post by mellow on Oct 25, 2011 22:30:29 GMT 1
i dont think so.as long as u have the correct carb pipe n cdi |
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neil
Thrash Merchant
my 125
Posts: 386
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Post by neil on Oct 28, 2011 22:40:11 GMT 1
i dont think they were different the dt has different porting, suppose you could get one with bad casting in the ports which might restrict it.
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jackup
Thrash Merchant
Of all the things I've lost I miss my mind the most
Posts: 388
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Post by jackup on Oct 29, 2011 23:25:19 GMT 1
So we don't seam to be any closer to a answer does anyone no for sure ?? |
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neil
Thrash Merchant
my 125
Posts: 386
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Post by neil on Oct 30, 2011 21:52:20 GMT 1
i really dont think there is a difference, i have several barrels one of which is a y1 off a german import 10w. No difference in porting compared with a y2, ive never come across an unstamped one, have people had barrels over the years and ground the numbers off? then some one has got hold of one( may have been have been tuned) then said their the ones you want, will do 110mph with one of those barrels on. some one correct me if im wrong
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Post by gerumgoin on Nov 1, 2011 16:57:23 GMT 1
Well i thought i would look at the barrels i have,i got 2 with y2 on,3 with y1 on,and yes 1 with no number stamped on,doesn't look like its been removed,will get a few pics of it on here,it may be that the first ones never got stamped,then they decided to start to place a stamp on them?
any way i will have a good look at the measurements of the ports etc and see if there's any difference.
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jackup
Thrash Merchant
Of all the things I've lost I miss my mind the most
Posts: 388
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Post by jackup on Nov 1, 2011 19:53:12 GMT 1
nice one cant wait to see if any diffrence
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Post by gerumgoin on Nov 2, 2011 16:11:35 GMT 1
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Post by mellow on Nov 2, 2011 16:32:29 GMT 1
as far as im aware m8 all heads including dt early ones are the same im sure its the carb,cdi and pipe that do the business  |
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Post by bertiemollie on Nov 2, 2011 21:28:24 GMT 1
I just checked my 10w Mk1 and it has Y-1 on the side.
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Post by gerumgoin on Nov 9, 2011 9:22:49 GMT 1
Lol as we have checked that it doesn't seem to be any difference between the the internal sizes of ports etc,but at the weekend i purchased of eBay a running engine a spare engine that had been stripped switch gears and a load of other bits,and on the spare engine the barrel,you guessed it has no markings on,will do a second checked on this one.  |
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jackup
Thrash Merchant
Of all the things I've lost I miss my mind the most
Posts: 388
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Post by jackup on Nov 20, 2011 23:32:12 GMT 1
bump
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...... ha ha ha 
).
