Suzuki DR200SE Head Swap and Carb Upgrade | Fixing Low Compression
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- Опубликовано: 7 авг 2024
- Fixing the damaged valve seats on our Suzuki DR200 by installing a cheap and commonly available LT230 cylinder head. We also convert it to a Mikuni VM26-606 carburetor for better throttle response.
0:00 Recap of the Damage
0:26 Repair options
1:08 Why the LT230?
1:43 What's the Catch?
2:19 Rebuilding the cylinder head
3:51 Engine reassembly
5:25 Re-testing the compression
6:44 Mikuni carb swap and road test 
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That looks like some good fun…..as always very thorough explinations
It's always interesting to find out what lies down in the rabbit hole!
Great build. Glad you did a carb swap. Dr200 has a really oversized cv carb originally. Switching to vm26-606 or 24-32mm PWK transforms this bike completly in terms of performance.
Sounds like I made the right choice! Thanks
@@ozarkgarage definitly. You could put on a cheap exhaust as well. There is some restrictions in the original one. From there remove the airbox lid or put on a podfilter with some water resistant bag over it and the Bike is completly free of any restrictions.
Going down to a 14 or 13t front sprocket will make it more fun as well.
@@Rocketman0407 I do worry about water if I get rid of the stock airbox. The muffler on the bike has already been gutted by a previous owner, not sure how much I would gain with a DG exhaust, other than probably better sound.
@@ozarkgarage ok, then there is no point going to a DG exhaust. If you drive in very heavy rain the pod could be a problem. You could get like a 45 degree intake tube. Cut it to the correct lenght then install it so the pod ends up under your seat. Then put on a filterwears prefilter for added protection.
Should have used the a 1986-88 TM-28 side slide carb!
Way better than the mediocre BST-31 diaphragm carb on the later Dr-200.
That BST-31 is a piece of junk. He did get in a VM 26-606 wich is a pretty good alternative though.
The TM28 pumper is of course the best for this bike, but its like 300 $ new and rarely sold used.
They sell it on some scooter website.
I think going for a PWK carburator is a good middleground. Original OKO is good and costs 100 usd or so. The VM26 he used is a close second. There is also the Nibbi 32mm that works good if you want maximum top end power.
Is there a gasket for the rocker cover or does it just use permatex?
The manual specified Suzuki brand sealant but I used ultra gray permatex
What is your jaltitude and jetting on the vm26?
I think I ended up with a 17.5 pilot jet and a 185 main, tuned with a wideband o2 sensor setup. Same hill test as in this video: ruclips.net/video/EeXsm-Qf62E/видео.html
Altitude is 800ft MSL or so, and never changed the jetting when I took the bike to Colorado. It started and ran just fine at over 12,000 ft (Cumberland Pass).
You me Yamaha Blaster 200. Not a Banshee 350.
How many miles on this bike to get that bad?
About 10k miles
@@ozarkgarage not a lot... Lol
Thanks for the reply.
What carb?
Mikuni VM26