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Post by jorjasfather on Nov 25, 2014 19:51:46 GMT 1
Hi there everyone just a quick one can anyone talk me what codes stand for on the barrel ie Y-1 or Y-2 is there any differents in all the cylinder barrels
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Post by museumman on Nov 25, 2014 20:42:25 GMT 1
the inlets are different on one of the MK1 10W barrels, can never remember which one. Billy knows if he's around.
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Post by jorjasfather on Nov 26, 2014 0:07:12 GMT 1
If thats correct which is the better barrel to have on your engine
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Post by okeydokey on Nov 26, 2014 1:42:58 GMT 1
cant remember last looking but i always thought it was Y1 and Y2 on the heads?
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Post by museumman on Nov 26, 2014 20:20:15 GMT 1
Here's my later Gold Wheel with a Y-2 Barrel  I've also got a few first day of production bikes (Black wheels) that have Y-2 barrels and another later one with a Y-1 barrel   An 82 MK1 barrel someone asked me to look out for that had no number. I've had 1984 MK1s with Y-1 & 2 and the odd 82  |
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Post by museumman on Nov 26, 2014 20:21:24 GMT 1
cant remember last looking but i always thought it was Y1 and Y2 on the heads? Yeah heads as well  |
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Post by jorjasfather on Nov 26, 2014 20:35:56 GMT 1
I have two square mk1 barrels one has Y-1 and the other has Y-2 could this just be a casting number and not a spec code
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Post by okeydokey on Nov 27, 2014 1:15:54 GMT 1
I'll have a look at my barrel next time i see daylight!?  Lol |
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Post by zone1 on Nov 27, 2014 5:29:59 GMT 1
could this just be a casting number and not a spec code Quote other forum: "I work at a medical implant company and our knee implant component castings will often have a number batch on the raw casting. Maybe the y-1 came from the -1 mold and the y-2 just came from a different mold but still the same design. If that makes sense."
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Post by billy on Dec 24, 2014 18:22:25 GMT 1
I have tried comparing Y-1 and Y-2 barrels and I havn't been able to find any differences. I think it's the same barrels tbh.
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Post by billy on Dec 24, 2014 18:25:08 GMT 1
the inlets are different on one of the MK1 10W barrels, can never remember which one. Billy knows if he's around. Naah they're the same, I'm 99,9% sure. The YPVS inlets differs from the LC inlets though (but I assume we're not comparing YPVS to LC barrels in this thread?). YPVS inlet has a "boyesen port" in it.  |
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Lol
