Yamaha XT 600 single carb + KTM shock - How it was made

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svaneberg
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What Bike or Bikes Do You Own?: 1993 Yamaha XT600e 3UW with mods
Location: Hovedstaden,Denmark

Yamaha XT 600 single carb + KTM shock - How it was made

Post by svaneberg »

Starting point: A Yamaha XT 600 3UW year 1993.
A picture says more than a 1000 words, so there will be more pictures than words in this thread (I’m terribly sorry about the quality of some of the pics. Apparently I chose to use an extremely crap camera).

Preparation:

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Welding of re-enforcement (A good part of the metal that sits between the 2 vertical frametubes where they meet the ”spine” had to be removed to facilitate the carb. Furthermore I had to move the upper shock mount approx. 5 cm back to make room for the air inlet tube):

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My homemade manifold. I initially bought a 2-1 manifold from a Grizzly, but it was way too long and the carb would be located too long back. Furthermore the manifold bending made the carb hit the startermotor.

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Carb in place:

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Mounting of the KTM LC4 rear shock:

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I had to fabricate a new inner fender as i’d removed the airfilter/batterybox :

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An airfilter is also needed:

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A few pics where I show the original shock mount:

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Last edited by svaneberg on Tue Jul 22, 2014 8:36 am, edited 1 time in total.
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by Mezo »

Your pictures are all missing they key file ending .jpg

If it hasn’t got the ending .jpg it simply will not show up on the forum, go back to Google & find the file that allows you to share it on forums. :rtfi:

M.
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by tall-mike »

Or just tell the wife to post the pics for you :popcorn2: That's how I roll :funkynanna: Mike
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by ActionManMelb »

Rather than posting ALL the pics here, a link to the album would allow people to view or not without chewing up a lot of download.
Or you can load thumbnails with a click through to the larger picture.
Every time you scroll past a page of pics, they all get reloaded. Can be time consuming and frustrating if you have a slow connection.
"Don't worry," he said, "things could be worse ........."
So I stopped worrying and lo and behold, things did get worse!
svaneberg
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by svaneberg »

First Start-up. Bike has done 3000km since and has been tuned in :biggrin: :


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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by steveloomis »

Always an exciting time, fun when it catches.....

Good Show...
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by nop »

nice
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by Yami »

Hi , very interesting.
Can you tell us some more about the carb, what kind, what you´ved done to it when tuning?
Also it would be interesting to know if the bhp has increased as well as what happened to petrol consuming.
Regards,
Tomas
Current in the stable: 2x34L, 36A, 2KF, Raptor 350, R6, R1, XJ900S, MT07 Tracer
svaneberg
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by svaneberg »

Hi Tomas

The Carb is a Keihin FCR 39. Actually I did nothing to the Carb besides giving it a good cleaning. It's Stock KTM EXC 450 trim. I used to get an average of 20,5 km/l with 14/45, but now it is on 19,5 km/l with gearing 14/46 :biggrin:

Best Regards

Jakob
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Re: Yamaha XT 600 single carb + KTM shock - How it was made

Post by mazi »

Hi svaneberg, what can you say about riding experiences after mount this carb? Is there any differences to stock carburator?
---
greets, mazi
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