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200cc with a 34mm carb

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Well that has changed a bunch over the years. The 200's have used 39mm, 38mm, and 36mm. The newest models are running 36mm. I just happen to have a 34mm I can snag for 40 bucks and thought it might be worth a shot.

Joe........

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I dont know why KTM went with the 36mm to begin with.....

a little extra low end at the expense of top end?

I think the 150 has the 38mm carb! go figure?

the 38 mm works very well with 200 on the trail

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Joe have you ridden the 200 with both the 38 and 36 you've currently got? I'd like to know how you say they compare. Spill it bud!

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Joe have you ridden the 200 with both the 38 and 36 you've currently got? I'd like to know how you say they compare. Spill it bud!

I have not. The only carb I have ran in the 200 is the 39mm. I do have a 36mm but it is loaned out at the moment, I never did get time to play with it. Now that fall is here I have two race weekends left in the season so I will have time to work on extra stuff after November.

The small carb direction KTM is heading must be to give a better low end engine. A smaller bore carb will not have the volume but will have a higher velocity.

Joe...........

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I will be experimenting with Joe's 36. So far i have tried the 39 and 38. The 38 works much better. I have ridden the 36mm equipped bike and they work well too for me. But, i ride from 3/4 throttle and below. The 34 is an interesting experiment and i look forward to hearing about it. Didn't know there was such a thing.

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My 200 with the 36mm has tons of torque. In a tight hare scramble I can run in 3rd and 4th gear at slow speeds no problem but my bike runs out of steam from upper mid to top. Bet a carb key holed from 36-39mm is the hot ticket. My bike is set up to lug but I like to rip as well. You guys with the bigger carbs have the opposite problem that I'm having. Bike rips mid to top but needs a little more on the bottom.

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My 200 with the 36mm has tons of torque. In a tight hare scramble I can run in 3rd and 4th gear at slow speeds no problem but my bike runs out of steam from upper mid to top. Bet a carb key holed from 36-39mm is the hot ticket. My bike is set up to lug but I like to rip as well. You guys with the bigger carbs have the opposite problem that I'm having. Bike rips mid to top but needs a little more on the bottom.

The 38mm carb can work just as well as the 36 does down low. I used to swap bikes with a bud who had a stock 08 when I had my 05. My 05 wasn't stock, but I have ridden stock 200's from that genre. And now I am on an 08 with the 38 and just rode a stock 08 last weekend.

My bike's head has been milled which helps, but the 38 is easy to tune to give a great bottom to top power delivery.

I will be experimenting with a different reed setup and the 36mm carb soon, posting my findings.

BTW, there is a 38mm carb for sale on ktmtalk right now cheap.

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The 38mm carb can work just as well as the 36 does down low. I used to swap bikes with a bud who had a stock 08 when I had my 05. My 05 wasn't stock, but I have ridden stock 200's from that genre. And now I am on an 08 with the 38 and just rode a stock 08 last weekend.

My bike's head has been milled which helps, but the 38 is easy to tune to give a great bottom to top power delivery.

I will be experimenting with a different reed setup and the 36mm carb soon, posting my findings.

BTW, there is a 38mm carb for sale on ktmtalk right now cheap.

Thanks. I am considering a 38mm also that I could swap back and forth especially if it is cheap. Doin suspension at the moment so no $. Head mod and carb swap/mod are next.

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haha, I like the 38 as I have them figured out with jetting. I like the idea of the 36 being able to access the pilot and main from the drain, without having to pull the entire bowl.

TBH, I could run the 36 without much issue since I rarely get to use the top end anyway.

Joe, give the 34 a whirl and let us hear about it. 👍 I will likely start a thread once I get into the experimentation of these parts.

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If you want to try a 38mm Joe I've got one without the slide and top of the carb, I can ship it to you and if you love it keep it.

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