250-500cc New project

Just picked up this 89 WR 250, any known weak points and any hard to find parts that I should start looking for now?

She definitely needs sum love good luck with it post up as u go!

Yep, needs more than just a few cuddles! Will be a good vinduro mount. Have TE 610 conventional front end so it can be used for vinduro.

pretty much everything is hard to get for that year, 89-90 were transition years. yours is all italian, and is a good bike but many parts are unique and rare. probably 5 times easier finding parts for your 72, or an 88 bike

A bit of tinkering and she fired up after 5 kicks and the motor sounds sweet. The main issues are that the suspension linkages need replacing, the rear brake hub needs to be re bushed and rust everywhere, not as bad as expected. Will strip it down to a bare frame, give the cylinder a hone and new rings and of course needs new plastics and paint.

Stefan at r&d husky be ya best bet for those models chilly

Get some jenolite on the rust, unless your getting it blasted then powder coated.

Keep an eye on the axle clamps on the WP forks...they will crack across the top.

Got in touch with Stefan. No parts available from them

Ditching the WP forks, installing a set of conventional forks off a 99 TE610 because the Vinduro club I ride with has simple rules. No USD forks or rear disc brake. The bike came with the forks and a set of triple clamps already machined to suit, just have to change wheel bearings.

Anyone know where I could get a new con rod for an 89 WRK 250?

FYI. After hours of research there is no conrod kit available hovever you can use a YZ 250 conrod the only difference is that the bottom end main pin is 4mm shorter than the Cagiva one. The only pistons I could find are Woosner pistons and there are not many left.

The KTM rod I use in the 360 is two mm shorter on the crank pin. Should be fine.
Just make sure it's evenly spaced.

Ok con rod is sorted but now I have another problem. The usable top end I have is off a 260 with a 71mm piston and the piston needs to be replaced. I have not been able to find a 71mm piston. Do they exist and if so where can I get one?

Just so you know I'm pretty sure Dahlitz has a complete engine for this bike out at Queanbeyan!

Already got it but the top end was worse than the one I had but the cases were in much better condition. Crank, bearings and seals being done this week, just need that illusive piston. Have found a 71.5mm piston, will have to get bore measured properly.

Good stuff! My goodness he must have had that donk sitting out the back for 20 years! All the best with sorting that piston! Would it be better/possible to sleve the cylinder down to say 68mm or bore it to 72mm? Just a thought, if it didn't throw port geometry out too much then it would be far easier to get pistons for in the future!