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Post by allspeeds on May 20, 2018 15:34:04 GMT 1
Hi
Apart from below what else is needed to properly convert a 250 4L1 to 350 LC?
Front brake set up, oil pump, top end ,carbs?
Thanks.
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Post by midlifecrisisrd on May 20, 2018 16:27:23 GMT 1
Exhausts, twin horns
Steve
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Post by midlifecrisisrd on May 20, 2018 16:29:43 GMT 1
Rear wheel and sprocket carrier
Steve
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Post by rich on May 20, 2018 19:06:16 GMT 1
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Post by shaunthe2nd on May 20, 2018 22:42:57 GMT 1
Chain and sprocket set-up.
Decals on side panels.
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Post by markhoopy on May 20, 2018 22:57:19 GMT 1
Engine number  |
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Post by allspeeds on May 21, 2018 7:25:10 GMT 1
Ok thanks for the info ,sorry for being a bit thick with the search.
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Post by JonW on May 23, 2018 0:04:18 GMT 1
and no ones mentioned the headlight ears yet...
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Post by reedpete on May 23, 2018 20:46:53 GMT 1
The crankcase studs are longer for the 4L0 barrels so ‘top end’ needs to include those in case you hadn’t already.
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Post by ringding on May 23, 2018 22:03:01 GMT 1
I don't think that's right reedpete. I used to run my 4L1 as a 4L0 and didn't have to change the studs. The two bikes have the same stroke, it's a difference in bore that gives the larger capacity.
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Post by reedpete on May 23, 2018 22:28:50 GMT 1
Yep stroke is the same but the 4l0 barrels are taller than 4L1 since the pin to crown height io the piston is different . Situation is the same on the AC RD which I’m more familiar with, However I did go to look at the 4L1 parts list to check and actually couldn’t see any barrel studs !! So can’t 100% confirm but they should be 5-6mm longer.
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Post by JonW on May 24, 2018 0:18:45 GMT 1
Never had the stud issue, done a few 350-on-250 swaps, but it does make sense. To be honest tho, the nuts are really long compared to say the yovs versions, so they grab enough thread i guess.
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Post by oldelsieboy on May 24, 2018 6:14:11 GMT 1
250 and 350 barrel studs are the same length/part number.
OEB
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Post by JonW on May 24, 2018 8:24:52 GMT 1
Well there ya go, OEB sorts it  |
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Post by oldelsieboy on May 24, 2018 17:41:45 GMT 1
Well there ya go, OEB sorts it Easy to check the parts fiches, not rocket science  OEB |
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