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  #1  
Old 9 Jan 2012
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Engine 'transplanting'. Feasible?

Gday guys,

As recently I have managed to proper kill my DR engine (http://www.horizonsunlimited.com/hub...ad-ideas-60087) I'm looking at purchasing a second hand 2008 DR650 with 6200 km on the clock and using this engine to put inside my old case so I can retain the engine number and keep paperwork lovely.

Does this present any problems? Can any give me ideas on what else I should be considering here. What would I need to replace in my case? The other bike would cost approx $3000. My repair bill was $4400.

I'm planning on riding to Alaska, USA and later on, Africa, starting off this time in Canada. I would like to keep my old modified frame and hence my paperwork which is sorted. Hopefully one day I can take the bike home to Aus...via Asia.

Huge cheers and s in advance!
Rossy.
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'10 Suzuki DR650. 2011+ RTW trip. Currently Coen, Cape York Peninsula. www.followtheakubra.blogspot.com
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  #2  
Old 9 May 2012
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Wouldn't it be cleaner on paper if you just bought a used 2008, and rode that?
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  #3  
Old 9 May 2012
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Smile Everything is possible - but!

OK its certainly possible to transfer the bits from one crankcase to another (assuming Suzuki haven't made any significant internal changes between your original model year crankcase and the 2006 doner engine) but before doing it:

- are you a competent / experienced bike mechanic. Splitting an engine to the level required to do this, whilst not rocket science is major surgery and not a task for the inexperienced or faint hearted.
- related to the above do you have access to a good workshop and a comprehensive set of tools (including torque wrenches, flywheel puller, clutch holder etc).
- assumming you say yes to the above then consider this. The crankshaft bearings and the gearbox shaft bearings are all press fit into the two halves of the crankcase. To do the swap the internals successfully you have to either remove these from the new engine (which is often an easy way to damage them - especially as some of them are fitted to blind holes so removing without damage is near impossible) or put the shafts from the new engine in new bearings in the old crankcase half (I haven't priced this but it maybe expensive because at least some of these bearings are usually specials only available from the dealer). The third alternative is of course the new shafts in the old bearings - but that would be very dangerous unless you are certain they are good.

I presume you want to do all this because you suspect it will be almost impossible to get the Australian authorities to update the database/rego papers without inspecting the bike which is of course impossible. I have a NSW bike in the UK at the moment so I appreciate the problem.

If it was me:
- I would only do the swap of the internals if I had access to a good workshop, tools, time and some spare $ for parts. Then I would do it because I am experienced and because I want to see the internal state of the new engine in case there were any problems.
- without tools, workshop, time and $ I would not do it. Instead I would sit on the computer and produce an official looking form recording the change of engine numbers and get it stamped by anyone you can (local garage, justice of the peace, anyone who can help it look official). Also keep all paperwork associated with the purchase of the engine etc..so you are able to justify it all to border guards etc

An alternative would be to file the original number off the new engine and stamp the required one on. However I suspect it would be hard to do this well and might end up looking dodgy.

My final comment is I don't believe anyone ever checked my engine number from Russia through to the UK.

Good luck!
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  #4  
Old 25 May 2012
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Cheers mate! Great advice all round! In the end I ended up ditching the transplant idea. Risky, pricey and a helluvalottafkinaround!!!

I rang Aussie customs etc and they actually said it would be OK and that the VIN only mattered and I could change the engine number with the appropriate forms once I return back into the country. So now I've moved the engine over completely into my original frame with a YELLOW repaint (shitty paint though, wish I had access to better stuff!) Looks not too bad! Should post pics somewhere.

So all in all, the bike runs well and I now have changed out the stock Mikuni BST-40 carb with a Keihin FCR-39 carb with nice results, not sure on mileage yet though. New engine only has 7000km on it so hopefully will make a nice 70000 without anymore troubles! Implemented some new air/oil filters/magnets etc now for extra care.

Happy riding.
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