DT125R FORUM

At 150/60 your plastic chain cover will be eaten by the tire, no other issues.

@niels-dt200r said in Dt200r aftermarket exhaust:

FMF is originally connected by small weld between two pipes pictured. Nothing to do with bending to DT125/200R frame.
Its a pain in the ass when that fmf pipe has 15+ years like in my WR, it constantly need welding at this spot as its so easy to crack it there when riding enduro, meaning the pipe gets hits.
Today I'd get a WR200 DEP pipe and install it in my DT200R, not sure about its performance yet but I have one new on the shelf ready for a test.

Firing up the old girl every weekend lately

Today we had a great fun in the gravel pit with guys. WR brings attention as it is an uncommon bike, phrases like 'doesnt die on the climbs' or 'sounds nice, wish I had that sound in my 250cc KTM' are common
Unfortunately, I got back home with a flat tire, for the first time in my ownership of this bike. Some nail got into the tub and it lost all the pressure.

And a great vid of a guy on '91 XT600 who slighly over-estimated the bike's ability for jump qualities

https://youtu.be/-jhVn8LVuG4

@markus-w If you write 'DT200R black' in google graphics it will show these images

The 200cc was in 3 colours: black, white and sky blue(most common).
I once saw the black version in my country in ads for sale, a few years back.

@markus-w Yes, they had a blue seat originally. It suits the frame colour I chose, but the frame plastic covers I used from YZ400F are a different kind of blue so it stands out a bit now. Originally 200's had white frame, but I didnt like that much.

Here's how it looks on SM wheels. I dont ride a lot on this bike, as I prefer off-roading, but its nice to have a garage queen like this:

This summer I took my WR to 3 different MX tracks. It was a great week with guys, we planned it before, and every day meant different track.
Of course WR200 is not made for motocross. Front forks are the biggest drawback. They were often bottoming out, still seemed too soft, even tho I have stiffer YZ springs installed. Rear was ok.
I had to dismout the side stand, as it was flapping so much, that it worn the mount on the frame. I also installed MX style fender, without any taillight.
I did not have much experience on MX tracks, but started learning quickly. I liked the 1st and 3rd track, the one from 2nd day didnt suit my skills nor the bike, and I dont have any pics of my own from that one. I plan on going to 2 more tracks this year and make a video at the end called WR200 on MX tracks.
So far, here are some pics:
1st track:

3rd track:

WR200 also uses bigger reeds, usual mod is to weld around the DTR reeds mount and then make the hole bigger for new reed cage

This year I took part in the Classic Cross-Country race again on my WR200.
It was a lot of fun and a great competition.
I was 2nd in EVO class again, lost to the guy on a '90 CR250, the same one who won last year. He made a comment about the WR lacking in the suspension area which is totally true.
There was a new guy riding a ~`85 RM125. He was quite fast, but not as fast as me

And for the 6 times I competed on that track on my WR, in different types of races, I have 5 trophies. Thats quite good, although I never won! Always 2nd or 3rd

@markus-w The athena 170cc is a great upgrade for the 125cc engine. But I wouldn't go with the 200cc pipe on it. I had that kit with athena complete exhaust system and it worked really great. But when I installed that exhaus on a DT200R it sucked. After every gear change there was a drop in power and had to wait for the engine to get to higher revs for some more power.
So even tho the 170cc uses the 200cc piston size, the stroke stays the same, and I think you should use the 125cc pipes for your setup. (again, in my opinion athena pipe is the best one for the dtr)
https://youtu.be/u1kb5bMY3KQ
Here's the vid of the 170cc setup I had back in the day, crashed the bike later on and it went for parts. But it was running really good with the top end and exhaust from the same manufacturer. And it didnt even have the power valve plugged in.
Generally athena pipe for dt125/170 is very similar to fmf pipe for wr200 when it comes to power delivery. It doesnt make your bike top-end-of-revs-only like the giannelli pipe does. Its more of a mid-tier revs concentred pipe. While the oem pipes for both of the bikes are concentred more on the low-tier of revs. Its more visible especially in the wr200, but you get the idea.

@mhbikesnbits Heres some info on the installation I found on the internet. Did some things different but generally its good info.

@mhbikesnbits Its FMF pipe made for WR200. Needs some small mods to fit DT200R but works great.

Bike is almost finished.
Chosen to go with the 3ET engine instead of 3XP.
Still waiting for some new jets to set the carb the best way I can.
Other than that I need to change the clutch plates as I chose some cheap stuff and its just not holding on with the 200cc

Rev video
Not perfect yet
More info will follow.

@mhbikesnbits Great to see updates on this build. Love thi finish on the details. When it comes to the radiators I'd go with dual radiators from DT200R to suit the engine, but those silver alu ones could come out very nice too. Will be watching your progress

https://www.ebay.co.uk/itm/303707698375?epid=249614517&hash=item46b663b4c7:g:j24AAOSwoddaa0Un
always used Reinzosil, never failed me.

• always using a thin layer of loctite 5923 for the head gaskets, never failed me either.

Today I changed the rear tire.
The rims are not good. WR's are known from rotting rims on the inside. I dont really want to change them, as I just keep bending them with my style of riding and the rocks/leftover parts from cut trees I sometimes bump on. Also there is a new small crack on the rear rim.

Of course I cleaned up the aluminium dirt before installing a new tire

This is a mud/loose surface tire. Getting ready for the autumn CC championship next month!
Unfortunately I had some problems today, the spark plug failed and the engine died. Good thing is that I always carry a spare plug with me when I go riding. But I wouldnt want that(engine dieing) again! Will try to sort that out.

And of course, the vid:
https://youtu.be/d93hQ8YO4Zc

Just saw this item listed
https://www.ebay.co.uk/itm/284401654365?hash=item4237a8da5d%3Ag%3AgtsAAOSwqT1hEC4a&LH_ItemCondition=4
What do you think about the price?
How much should a rebuilt 3ET/3XP engine cost?
It says in the ad that the cylinder is replated and it comes with a new carb(probably the chineese version off ebay).
I personally prefer my 200cc's sleeved.
Whats your opinion and take on the prices, based on the UK perspective?

11.07.2021 - Classic Enduro Championship.
I could start on a WR as it was made in 1991 based on a production year stamped on rims and fuel tank. But it was the most modern bike there.
I was 2nd in Evo Class and 3rd overall. First guy overall was riding a twinshock '79 RM400. Big respect for him as he was very fast. Second guy was riding on a '90 CR250. I lost to him as my WR bogged and died on the LAST LAP. Had to stop and kick it for 20seconds and that was enough for him to pass me as he was just behind my back for the whole race. Third guy overall was riding a late 80s KX125.
There were 2 runs, every run was 30mins. I won the first one in class, was second on the second run and that means second in class at the end. Did the holeshot on the second run, started second from the line on the first run. It was a lot of fun!! There even was a CR500 starting, but the track was way too tight for that bike.

Pics:

@nottsbiker Yeah I know exactly how it feels like, waiting for some awesome packages at the moment myself, and latest snow storms are probably gonna impact the delivery time here