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Duke 916 strip down and re-build...

42043 Views 180 Replies 54 Participants Last post by  Lilldic_mossy
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Due to me using the bike in all weathers since getting it almost 2 years ago (i think), it's been looking a bit worse for wear..
..Rusting on the rear frame,wiring falling to bits along with the connectors and the majority of all the nuts and bolts corroded...

So the plan is to strip down, clean up,polish up what i can and re-spray the frame and fairings a completely different colour.
All the wiring will be cleaned,re-wrapped and new connectors where needed... (yay for dodgy Italian electrics)
New belts will be fitted while the engine is out and a check over of the various bits and bobs...

Before




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No posts of the stripping all of it down as i just hammered out as much i could today...

Stripped out all of the front and back looms, radiator,chain,subframe,front end etc...

Drained the oil and water....

Noticed a few bits of metal shavings on the sump plug, so thats another thing to have a look at....

Most of the wiring has rubbed like fuck on the frame causing a bit of rusting :(

Heres a pic of todays efforts... (i will be taking a lot more pictures now, esp of the rebuild and engine out.... and belt changes)



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Coolant out...


urgh..


Going to have to heat these up to try and get them off... if not they will be left and polished on the engine :)


rusty...


Mate said this looks very good for a 48k duke....




New seals needed...
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Bit of spit and polish needed lol !


This was a new (second hand) shock on there to replace a busted one back last year.... needs a bit of referb !


The Engine is held in place with three bolts, one being through the swingarm.So if you ever want to remove the swing arm, the engine has to come out or be swung forward....
This is the pita bolt in question which is stuck..




Nice bit of crap build up :(




So..New bits and bobs needed to wack the feck out of the swingarm bolt needed.....
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Wow... if ever there was an award given for "getting the most" out of a Duc, I think you would be a shoo in for it! That is one tired looking 916... am looking forward to watching your progress.
Finally managed to get a size 14 allen key socket with breaker bar on the one side of the swing arm bolt to free it up.... it now turns better, but trying to hit the bolt through from the other side is still a pain...
Used plenty of wd40 to free it up and sockets to hit the bolt through but its only budged a cm :(
Moved up from mallet to dead blow hammer and now tonight... a lump hammer, but need more room in the "shed" to get a proper wack on it.
It seems the swing arm seals/bushes are binding on it ? Anyone had problems getting their swing arm bolt out like this ?????
Nice.

You do know that the engine has to come out or that the frame has to be spread a bit for the swingarm to come off, right?
Wow... if ever there was an award given for "getting the most" out of a Duc, I think you would be a shoo in for it! That is one tired looking 916... am looking forward to watching your progress.
:) Well living in sunny uk (wales) i have to make use of all weathers ;)
The mileage i put earlier should have been 40,000 miles not 48k

Mate who use to work on dukes long time ago also noticed while looking at the belts noticed that one of the tensioner bearings is starting to fail :eek: Good time for a strip down !
Nice.

You do know that the engine has to come out or that the frame has to be spread a bit for the swingarm to come off, right?
The plan is to take the engine out so i can give it a good service, take the swing arm out as well and then the forks...
I need to get it back to the frame so i can get it cleaned tidy and then sprayed up.... Was thinking of getting it powder coated... haven't decided yet.

Its just trying to get the bloody swing arm bolt out thats the pain...it'll spin (not freely) but wont shift out if you know what i mean...
Nice project...i'll be watching too....it's so nice to see legendary bikes come to life once again.
Cool.

It will look great when its done. Keeps us posted.;)
Bloody hell thought my 999 had a tough life. Swing arm pivots are a nightmare I have had to distroy 2 in the past
The bolt/spindle rusts to the two bearing sleeves that it passes through
and can be a real pain to remove, like you say you can turn it but its
seized in the sleeves which turn with the bearings but wont let the bolt/spindle
slide out.

brian.
Reminds me a cleansing diet! You will love that thing sooo much more when you are through with the project ...

How many kms? How many owners? All all-season riders? Coastal city?
Thanks.
Looking forward to seeing it all done,and watching the rebuild
Reminds me a cleansing diet! You will love that thing sooo much more when you are through with the project ...

And you probably wont let it sit outside or get this dirty again.
Nice job on taking the bike apart. I've done that to mine two years in a row. I destroyed the threads on my first swing arm bolt upon removing it... now I use it as a pusher between the hammer and the new bolt...

BTW, removing the engine is the best way to clean it, this is how I do mine:



Good luck with it! By the time you're done, you'll be so much happier with the bike and it'll never be neglected again. One more thing, you'll find yourself replacing more than what you thought. It's all apart so why not right? :think:
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Looking good there...well relatively speaking lol. Getting it torn down is the easy bit. I did this to my 748 the day I picked it up (1500k but ridden hard and put away wet at the track). Just be patience and take you're time. I would suggest powder coating the frame, much more durable than paint and won't rub through.

Just as an example, here's mine thus far after about 6 months of work (and too much money lol). I had my frame powder coated as well as the triples.




Make sure you label EVERYTHING! Especially all the electrical connectors. I'm not running into some trouble remembering what goes where as there are several item that use the same style connector on the bike. I'll prob have to steal my buddies 748 for reference lol. Good luck with the project!
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Good luck with this! Just rebuilt my '95 SS motor, was an experience... ended up being a complete motor strip to sort the crank plug out & new barrel studs etc.

What year is your 916? :)

Take PLENTY of photos... ;)
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