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Old 07-11-2014, 10:33 AM   #1
Shooter1 OP
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KTM Lc4 2001, was a Dellorto used as stock carb??

I am looking at a 2001 Lc4 640 Endruo this weekend. The owner said it had a Dellorto on it and I thought the stock carb from '99 and up was the BST Mik. The pics of the bike shows it has a single pull throttle cable on it so it may be a Del. I dug thru all my old KTM parts manuals and in the 2001 manual it shows a Dellorto 38mm may have been used on the 400, and the Mik 40mm on the 640's. Is it possible some of these '01 640's got built with a Dellorto on them or might this be a 400 with 640 side covers on it? Is this a bastard European bike that slipped in un-announced

What letters or numbers in the vin would indicate a 640 motor size? I'm certain I can tell by riding the bike if it's a 400 or 640 but I thought someone may know if the Del was ever used on a '01 640. I can't imagine anyone swapping out a Mik for a Del but who knows. Is the vin on the steering head? Isn't it on the motor right below the right side case filter?

WTF's going on here? Thanks for any insight gents.
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Old 07-11-2014, 11:34 AM   #2
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Someone smarter than me will be along shortly to correct me but I'd bet my paycheck it came with a bst40. The Vin will be on the top tube underneath the fuel tank just behind the steering head. The number on the engine is not the Vin but the engine sn I believe.

Delorto or bst shouldn't matter. Find a cheap used fcr and a better breathing exhaust and enjoy it how it should have come from Austria. (Unless you expect lots of elevation changes)




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Old 07-11-2014, 05:23 PM   #3
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As far as I can tell 2000 was the last year of the Dell on the LC4, and even then only on some models (others had the mic).
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Old 07-11-2014, 05:50 PM   #4
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If ya wanna sell that delorto lemme know
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Old 07-11-2014, 07:59 PM   #5
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What's the last 6 of the vin? I'll check.
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Old 07-11-2014, 11:29 PM   #6
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my 2000 enduro has the BST fitted
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Old 07-12-2014, 05:44 AM   #7
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Yeah, I'd bet money that a PO swapped the Mik for the Del. They went to alot of trouble because they had to replace the throttle barrel and that may have required a different right side switch gear. Not sure why you would want to do that. 2 Spot, I'll know more tomorrow.
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Old 07-12-2014, 06:59 AM   #8
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My 2001 640e came came with a Mikuni BST 40 carb.
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Old 07-12-2014, 07:47 AM   #9
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Originally Posted by JTucker View Post
What's the last 6 of the vin? I'll check.
Won't see the bike until tomorrow. Is the cc's stamped on the base of the cylinder anywhere like on some Japanese bikes use to be? I don't remember
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Old 07-12-2014, 08:40 AM   #10
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My 2001 640e has the BST40 on it.
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Old 07-12-2014, 09:51 AM   #11
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Here's a vin ID chart, might help...
http://support.ktm-parts.com/entries...fication-Chart
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Old 07-12-2014, 10:10 AM   #12
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Thanks JT
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Old 07-12-2014, 10:15 AM   #13
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Thanks JT
I know people who have bought bikes that weren't the model or year they were supposed to be. Good luck, if it has a dellorto it's been swapped. I know that was common on the older ones with the junk Edelbrock.
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Old 07-12-2014, 01:58 PM   #14
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Originally Posted by Shooter1 View Post
Not sure why you would want to do that. 2 Spot, I'll know more tomorrow.

well first of all i like dellorto.

it splits the difference between the BST and an FCR, better throttle response then BST and better mileage than FCR

i'd like to try the dellorto on the lc4, had one on a couple bikes but my favorite was an ATK605.
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Old 07-12-2014, 03:32 PM   #15
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Quote:
Originally Posted by Shooter1 View Post
Won't see the bike until tomorrow. Is the cc's stamped on the base of the cylinder anywhere like on some Japanese bikes use to be? I don't remember
No,but I seem to recall there was a number stamped on the head that indicated which engine size it was made for, but considering they are interchangeable I have no idea why.
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