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Old 06-03-2013, 02:01 PM   #1
Irish John OP
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Carb adjustments for trail riding, TLR200

Planning to take my new TLR200 to Colorado for a little trail riding in a couple weeks. Going from the Flinthills of Kansas to elevations of 6000-9000 ft. Suggestions for carb adjustments?
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Old 06-03-2013, 03:21 PM   #2
lineaway
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There was a couple of threads on here and trials central. The stock carb came lean. The pilot and main jet need to go up several sizes. Pilot 40+ (hard to find, I drilled mine) main I think 100. Air box needs to breath better. All I did was remove snorkel. Somebody else will be along shortly to reverse what I say. The thread on trials central was more detailed if I remember right
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Old 06-03-2013, 04:17 PM   #3
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Running a carburetor equipped bike at altitude will mean reducing the size of the jets, as air molecules are less dense at high altitude, and the amount of fuel most be reduced with that in mind.

This site provides some useful basic info on carb set up, which seems to me an awful lot more accurate than the type of thing that gets posted up on chat forums: http://www.iwt.com.au/mikunicarb.htm
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Old 06-03-2013, 04:54 PM   #4
lineaway
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As usual someone riding at sea level giving jetting advice. I live at 6500ft and ride from that to 9000ft. Your turn Brewtus!
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Old 06-03-2013, 06:57 PM   #5
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Quote:
Originally Posted by lineaway View Post
As usual someone riding at sea level giving jetting advice. I live at 6500ft and ride from that to 9000ft. Your turn Brewtus!

Okay. Here goes.




Quote:
Originally Posted by Twin-shocker View Post
Running a carburetor equipped bike at altitude will mean reducing the size of the jets, as air molecules are less dense at high altitude, and the amount of fuel most be reduced with that in mind.

This site provides some useful basic info on carb set up, which seems to me an awful lot more accurate than the type of thing that gets posted up on chat forums: http://www.iwt.com.au/mikunicarb.htm
Brilliant. Yet another response from a Troll who as far as I can tell has no real-world experience, yet enjoys telling others how to do it. With a theoretical jetting link (accurate, but theoretical nonetheless) for Mikuni carbs when the TLR came with Keihin carbs. What's the matter, did it get cold in the shadow of your keyboard and you came out spouting your usual surface knowledge nonsense to get warm?? A great link to TLR jetting can be found here, a big thanks to Taxonomy for the info -

http://www.advrider.com/forums/showp...44&postcount=1

Twintroller you can argue with me all you like, I really don't care. We both know what you are. All of us who actually work on bikes do. Irish John, have fun with your 'Flex, and sorry about the hijack. Brewtus out.
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brewtus screwed with this post 06-03-2013 at 06:59 PM Reason: Longmire is not on yet, I'm burning time until it comes on...
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Old 06-03-2013, 07:03 PM   #6
laser17
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Lineaway - your clairvoyant!

I remember the 1st time my dad re-jetted my bike for altitude and being very, very confused when the move to a richer pilot helped alot.
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Old 06-03-2013, 07:30 PM   #7
lineaway
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Yes altitude is quite amazing. I was talking to our ex champ rider (B.S.) about the hard time we had jetting our bikes for over 12000ft plus at ttc. We had started the same minute at the `74 ute cup.
Some knowledge verses real world experience is quite the opposite at times!
So I just grin and bear it when someone intelligent comes along!
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Old 06-03-2013, 07:43 PM   #8
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Brewtus, do you have a new email address? If so PM me.
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Old 06-03-2013, 08:48 PM   #9
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Brewtus, do you have a new email address? If so PM me.
PM sent.

BTW, when are you gonna let us ride that Whitehawk?
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Old 06-03-2013, 09:10 PM   #10
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PM sent.

BTW, when are you gonna let us ride that Whitehawk?
Just as soon as I get a tank for it. The guy has had the old one as a sample to build a new alloy tank for over a year. Last word (before Xmas) was all he needed to do was polish it, maybe next Xmas. :(
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Old 06-03-2013, 09:12 PM   #11
Irish John OP
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I appreciate the link and advice. In checking with my Honda dealer, the#40 jet isn't available. Other suggestions?
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Old 06-03-2013, 09:31 PM   #12
lineaway
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99124-076-0400 did you try this part number or just asked the dealer? (Which only punches into the computer like a zombie with no mind) I also said the jet was hard to find. Drilled mine. You can always buy a carb.
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Old 06-03-2013, 09:36 PM   #13
lineaway
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http://www.cyclepartsnation.com/oemp...8e4/carburetor
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Old 06-03-2013, 09:38 PM   #14
lineaway
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That was 4 minutes too long.
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Old 06-03-2013, 10:13 PM   #15
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I'm at 7000 ft and mine runs rich. In fact the spark plug is so sooty I don't even know how it runs as well as it does. The jets might be stock, I suspect they are, but I don't know. I pulled the snorkel but all that did was make it so I have to use a bit of choke to start it. Was rich before, is rich now.

So I'm thinking that if mine is this rich but seems to run okay maybe you don't need to change the jets at all Irish John. Maybe just forget about it and don't look at the spark plug.
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