xt350 with tzr250 motor

Well not too much done today, took the frame off the engine and took out the rear suspension, then arc welded a plate onto the frame for the rear engine mount.

Can’t see too well in the pics but the welds turned out beautiful!

Used 6mm steel because it’s all i had, 4mm would have been lighter with a little brace around the back probably stiffer too.

Gotta place the engine back into the frame now and continue with the rear mount.

Had a look on bikepics.com last night, some hardcore xt’s there and as a supermotard it really looks well as, not tempted to do that unless i really can’t afford tyres. More then a fair share of pics with blown engines in them 🙂

XTDR250, appetites back!

zipping around on the runner 180 and has brought back my mojo, must get bigger faster harder two-stroke!

First rescue rear axle from seans stalled rd400, after i had gotten it out it looked a little similar to a tzr axle, since we only have one xt350 axle that would be handy if they were the same

Slot axle into second xt350

And haul out, looks a little low in the seat area for my idea of a hard core off road tdr, aww well, it’ll still be fun though.

this yamaha cruiser thing (bloody cruisers!) came up with a dead battery, got it started and everything seemed ok… then it seized repeatedly, an engine that won’t turn seems a lot like a flat battery. bloody cruisers.

Right frame on the table and with the help of the rolling bike i got it level.

Was gonna use the other bike but it looks like some sort of wierd acid rain left blotchs of rust on the whole arse of the bike

By comparision, just have to fix this and she’ll be right! (well appart from the welded on right footpeg, will have to work around that)

Had to have a sit on one to see what their like, it’s just like my old xl250r paris-dakar ‘cept a bit lower, that xl was brilliant on bumpy back roads.

Right on to real work chopped off the the xt’s down tube and chopped in half the farmers tzr subframe. Now i can slide the engine back in up and down all i want

Will have to pull the top of the brake pedal out a bit to get the engine further back.

Done for the day, little too much procrastination going on but at least i got something done.

The sprocket is 2cm further forward then then on the xt350 engine, probably can shorten that to 1cm when i mod the brake pedal, other then that it’s not too bad width wise, the kicker probably won’t work and the gear change is gonna need a linkage, just hope a set of tdr pipes will fit without melting the seat or clouting the tank.

XTDR 350 er 250!

fresh tyre on the way! and damn it is useful having a paddock stand

So some more garage cleaning up was done, I found both xt350 heads and promptly chucked em both outside and then played with an nsr 80 gearbox cluster self learning all about dog engaged gearbox’s, much easier then reading about how it works.

Now that there was some space, It was time to restart the xtdr project only this time with the tzr250 motor instead (cos I swapped the ypvs350 for complete gsxf600), Can you spot the tzr250 engine in this pic?

I own both xt350’s now so this frame is on the table for the time being but I think the other one is in much better condition. Footpeg’s not welded on for a start..

XTDR 250, sacrificial mount


Cleaned up the engine a bit, found out that the lateral vibration bar mount is cracked in the cases, I have a good case but I’ll probably try some epoxy glue first.


The sacrificial mount, this thing will allow the engine to be bolted to the frame is such a way that i can move it left and right to get the chain alignment right and raise it to make the squat(chain run) in the right place without having to worry about the engine or the frame being vertical.


Bit of bending was necessary, them fecker’s bent it to fit the 3vx frame.


Slapped in the rear swingarm to check for clearance, looks like the mount will have to come back by about 3cm, the kick start should still clear the peg, but the gear change will have to have a linkage, no direct shift. Had to stop here for the day gotta find out who owns this xt before choping it up.

The rear mount will be made by putting a tube on the swingarm bolt (it used to go through the engine) then welding bar’s up to the upper engine mount and down to the subframe, subframe will probably be fully welded in.

XT350 with TZR250 engine, TDR250X?

While steve’s idea for a rg125/tzr250 hybrid is a good idea, it would be just another sports bike to me, and i have plenty thanks.


Took ages to drag this out, then choco turned up and we got it in the garage in seconds.


Welded on right footpeg caused a bit of a bother with getting the swingarm bolt out. also one of the engine bolts was stripped, took ages to get it out.


Tee pieces stuck right on, this is just before a quick clean up.


Should have cleaned the tzr too.


Not too bad looks like with some extra hose the xt aitbox might fit onto the engine.


Just thrown together, the front of the frame need to go up by quite a bit and the engine is not very level.


Other xt, probalby in a bit better condition then the one i’m working on, many parts shall be swapped.

This is a tdr250, with a more off road aspect, I quite like it, reminds me of a dakar bike, won’t find any tdr’s for my kinda cheap anyway and I might as well recycle the xt350, make good out of waste and all that. Besides the xt is a rugged tall and slim design, more off road then a tdr which is what you need on Irish back roads.

Just gotta txt, the jago jeep with be up at the weekend 😀

TZR250 into a 125 frame.

Fixed the headlights on the car, it was only the bulbs in the end, no idea why both went at the same time really. Only an exhaust a calliper and the hazard lights to be fixed.


Did we need that bit?


IKT frame plonked on top of the engine to keep it out the way, I am missing a load of bits to make this thing a runner, so Steve G suggested I put the engine in the rg125…..

and it’s damn good idea. I did squeeze a rd400 engine in there before and that engine is a lot longer then the (completely no realation) tzr250 engine, also the sale of the tzr bits might fund the buying of a tsr125 rolling chassis, so i’d have a home for the rg125 engine, it would be my wheelie machine.

TZR 2ma/1kt rebuild

Had to finalely take all my tzr bits back off steve g, shouldn’t have left them there for so long, anyway onto the new project!


This is a 1kt frame that been attacked by a “stylist” knob head. there’s more parts out of frame to the right.


More parts, sold the 3xv frame to ted, he’s gonna put the dr750 engine into it.


Much cursing.


More cursing.


whole fucking extra bunch more fucking cursing of all farmers who think them selves engineer’s. Wasn’t even anyone around to hear me cursing, it was that bad.(1kt engine in3xv frame, not good)


Much sweat was spilt to get this far.


Not as much as was to change these four tyres and paint four wheels, fuck that was hard work. Gonna try and pass an NCT so needed tyres with thread.

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