andrew_oc42

I'm hoping the internals are okay! Hopefully I can leave the valves etc alone and bolt them straight in to the new head/block! However I'll be inspecting it thoroughly. Are there any pics available that your aware of of the internals? Goodluck with the valves though.. sounds like a fun job. I'm sure I'll find out in a week when my parts arrive! thanks

Thanks for the reply. I've bought a block and top end casing for my current engine so I'm going to attempt the rebuild myself! Here's hoping I don't screw it up. Hopefully with lots of photos, taking my time and support from the service manual / support from this forum I'll succeed!! Thanks for all the help!

Great pickup!! The 900s came out in 02.. however apparently this was a 12-01 model. I can't tell from the picture supplied I've asked for the model number on he block. Are you able to tell if it's indeed a 900 or 850? http://m.ebay.com/itm/B15-YAMAHA-TDM900-2001-BARE-ENGINE-MOTOR-/182058170504?hash=item2a63833888%3Ag%3AGtMAAOSw2ENW6z7d&_trkparms=pageci%3Aa86e4b95-9ab4-11e6-b650-74dbd1803c16%7Cparentrq%3Afbf857f11570a2af778512d2fffade95%7Ciid%3A1 Thank you

Yes that's all on another bike which I have access too.. however im more concerned if it will actually bolt in with no modifications? thankyou.

So I've been informed that apparently a tdm900 engine will bolt straight in.. however I'm very sceptical about this. Can anybody please confirm or deny this? there is a 2001 tdm 900 engine which has been rebuilt which the breakers seems to think it will go straight in.. thankyou!

Thanks for the reply. It will cost me approx. $250AU to get the top end and block here and I can have it in approx. a weeks time. Still waiting on a quote to get it welded and rebuilt. Such a headache!

Thanks for all of the help thusfar! After a little bit of cleaning and investigating, I found another hole in the engine.. Please find attached photos. Is this also the bottom end? or top end? It appears to be the top from what I can see. Is this also able to be welded? I've found a top and bottom end located in Germany, however I'm in Australia. Would it be worth the freight, or would welding be sufficient? These are apparently for the 4TX. Thankyou for your help, its greatly appreciated

Hello, Just wondering what options I have for engine replacement or repair for my 99 TDM 850? As you can see from the photos attached, there is a crack in the engine.. It appears that it's only in the bottom block. I'm finding it hard to source a replacement engine. I'd much rather just bolt out, bolt in if possible, however it isn't looking likely. Is the TRX850 the same engine and interchangeable with the TDM850? If not, what are my options? I bought this bike as a project with the intent to rebuild. I haven't had it started at this stage. After attempting to start it, the starter relay clicks, however the starter doesn't engage or turn over. However the wiring in the bike is horrendous and will require a new loom, so I'm assuming this may be some of the issue. Thank you, in advance Andrew. In this photo it shows the crack with the casing off, which goes right through. (in the red circle) In the yellow circles, it appears that this is the separation point for the top and bottom of the block. Are there any suppliers that make this, or would it be easily accessable? Is there anything I need to look out for especially for my 99 tdm 850? Thankyou.