TDR250 YPVS Power-valve install Ep.2
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- Опубліковано 24 вер 2024
- The second video in the series covering the top end rebuild of Yamaha's infamous TDR250. This episode covers the inspection & diagnosis of failure of the old power-valves & the full, step by step installation of the new Genuine Yamaha power-valves, bushes and all related seals.
The video includes all specifications & torque settings required to complete the task in line with Yamaha's factory workshop manual.
A number of other Yamaha engines of this era were also equipped with YPVS and the procedures covered in this video will also apply to the Power-valve replacement on those models too (though you will need to obtain the specific workshop manual for your bike for specifications and torque settings as these may differ slightly to the TDR).
The next video in this series covers installing the rebuilt barrels over the pistons & onto the crankcase.
Should you have any questions or require any further info then please just comment below and I'll do my best to get back to you as soon as I can.
Andy Mechanic!
Fantastically helpfull video, thanks for making it.
Thanks big time, I’m restoring my ypvs RD350 and this just what I needed... thank you so much...
Brilliant; just putting together a TZR250 and this is exactly the same. Many thanks.
hey thanks for the video. You helped me solve my issue for my r1-z (tzr engine) and saved me so much time. The mechanic who rebuilt the engine for it put the oil seals around the wrong way (sprayed oil out the sides of the barrels), and I never would have realised without watching this. Can't wait to experience the bike while running optimally. Much thanks.
Wow it was wallowed out so bad and no effect. Nice teardown onto the install. Cheers
Hi Andy! Fantastic! Im working on my Rd350 and i think you help me with everything i wanted to know about My YPVS restauration. Thanks!!
Amazing !!!!!!
Thank you Andy !!!!
Hi Andy, can you tell me what clearance the power valve in the bush is allowed to have? Or where can i find it. Thanx !!!
Cheers for this. Much appreciated. :-)
Hello Andy! I have to change the seals and o'ring to the power valves of my tdr 250! Can the valves be disassembled without disassembling the cylinders?
I don't think so - there isn't enough clearance between the cylinders unfortunately.
Good Luck
Andy
Great video. Are the power valves adjustable?
Hi andy, good day, can i ask u, if where did u get your new power valve? Because, here in the philippines i cannot find a new set of power valve on my yamaha wr200... Thanx...
Sure, a website called Yambits based in the UK - they should post to you okay.
Cheers Andy
Sir how much the clearance between powervalve and bush?im using yamaha tzm150..need help..
what brand grease are you using
By i bet she was smoking like 100 packs a day with all that red rubber grease lol 😂