DR750 & DR800 owners thread

[Longdude]

Bambi, you are a genius, and you too Lars They do look good with that fairing !

[Ladder106]

My current "Big" situation is like this:

(a) I purchased an SR43A last spring and am in the process of stripping it down for a frame - up repaint and refurbish. Engine is good but cosmetics are not where I want them.

(b) My SR41 is shedding some metal bits in the oil and I'm going to disassemble the engine to try to discover what is in the process of exploding.

So.....

My plan it to remove the engine from the SR43 and stick it into the SR41 frame. So I at least have one running machine while I'm working on frame/paint on the 43 and the engine on the 41.

THE ASSUMPTION:

I am assuming that the SR41 stator must be used when swapping the SR43 engine into the SR41 frame to keep all the SR41 electrics and CDI ignition compatible and happily passing electrons to each other.

The SR41 stator and ignition sensor will bolt directly into the SR43 left case.

The SR43 carbs will be carried over and everything else should fit right up.

UNLESS I AM TOTALLY WRONG OR MISSING SOMETHING.


I'll be working on this tomorrow and (unlike Lars) should take a few days to get finished.

So...................

If this is somehow totally unreasonable and will tilt the earth on its axis melting the ice caps and drowning everyone, please post and let me know.

Has anyone out there ever done this or am I the only crazy?

[bushybutt]

Hi Spen, I take it the stand would suit a SR41/42 750/800. What is the height of the stand in the down position.
The reason I ask is that I have a SR43A with an Ohlins with a I kg heavier spring than standard for two up riding with luggage and at rest the bike sits higher than a standard sprung bike. I was wondering if the stand would be long (high) enough to get at least one wheel off the ground.
Cheers Bryn

Hi Robmoto, I hope you, your family and all our DR riding mates are safe from the bush fires that are ravaging through Oz at the moment. Our thoughts are with you.
Bryn

[Ladder106]

A bit of parts number research this evening shows a difference between the big rotating part of the generator....called the "rotor" oddly enough.

It would appear that I have to see if the SR41 rotor will fit onto the SR43 crank.

Then get out the calipers to make certain nothing comes in contact while spinning.

.....maybe this is more complication than is reasonable?


Robo....hope you're keeping cool down there.

[rowie]

Originally Posted by Ladder106

Also...if you plan to loosen the balancer chain sprockets, this is the time. Use the strap flywheel holder to hold everything while loosening the balancer shaft bolts. If you remove the flywheel, tensioner and balancer shaft chain, you'll have to resort to the "special tool" to hold the balancer shaft sprockets.....or put everything back together again back to step #1 (yeah, I learned this the hard way also)

I'm looking for info about balancer chain timing for my DR650 and came across this post. I used an old Makita 5" angle grinder pin spanner that I found at work. Looks like this:

http://www.amazon.com/Amico-3-5mm-Gr.../dp/B007VD33S0

Just had to grind a small amount off of the inside so that it would clear the boss on the sprocket. Does the job and cost stuff all

[bluesman]

Originally Posted by Ladder106

My current "Big" situation is like this:

(a) I purchased an SR43A last spring and am in the process of stripping it down for a frame - up repaint and refurbish. Engine is good but cosmetics are not where I want them.

(b) My SR41 is shedding some metal bits in the oil and I'm going to disassemble the engine to try to discover what is in the process of exploding.

So.....

My plan it to remove the engine from the SR43 and stick it into the SR41 frame. So I at least have one running machine while I'm working on frame/paint on the 43 and the engine on the 41.

THE ASSUMPTION:

I am assuming that the SR41 stator must be used when swapping the SR43 engine into the SR41 frame to keep all the SR41 electrics and CDI ignition compatible and happily passing electrons to each other.

The SR41 stator and ignition sensor will bolt directly into the SR43 left case.

The SR43 carbs will be carried over and everything else should fit right up.

UNLESS I AM TOTALLY WRONG OR MISSING SOMETHING.


I'll be working on this tomorrow and (unlike Lars) should take a few days to get finished.

So...................

If this is somehow totally unreasonable and will tilt the earth on its axis melting the ice caps and drowning everyone, please post and let me know.

Has anyone out there ever done this or am I the only crazy?

Happy New Year, evryone! :)

Ladder, yes BUT....
Timing on SR43 is different than timing on SR41. E.g. I can't say it will not work - 99.9% it will, but will it be good or not optimal - hard to say, since you going to use "brains" and pickup coil location off SR41 on camshaft of SR43.

[Simosez]

G'day everybody, its been a while since i posted in here. haven't ridden the big girl in a while. fractured my right humurus (no, it wasn't) when i fell off the KTM back in september. anyway I'm back on now, the arm is not 100% but it will do.
I have a slightly dodgy starter motor. i pulled it apart to clean and inspect it and found two sections of the commutator smeared/shorted together. I fixed the commutator as best i could and gave it a good clean up. it works better now but won't spin fast enough to fire it up in the cold weather like you blokes on the other side of the planet have now. it starts easy here in 30 to 40 degree C temps we have at the moment
anyway i was wondering if this starter motor was used in any other applications? did a part no. search on google but have had no luck. it appears to be DR BIG only.
pn. 31100-44B00-H17
i am going to replace the brushes and increase the cable size and see if that helps. i have a new battery already.

any other ideas or assistance would be appreciated.

Rob, i will get those jets to you soon. sorry for the delay.

[Ladder106]

since you going to use "brains" and pickup coil location off SR41 on camshaft of SR43.

Oh...do you mean the valve timing is different on the SR43 also. I have to have a look at that. Hopefully the service manual lists it.

Thanks

Simosez,

Had a bit of a search-around and pretty much found what you did. There are a few places that will sell the armature only if that is your problem. German ebay also has brushes for sale.

I wouldn't think that there would be that much variation in starter motors across the whole motorcycle industry. Just looking at the motors on all my bikes it seems their size and mounting points are all about the same.

Maybe a trip to the local salvage/breaker yard with motor in hand would be beneficial.

[Bambi]

Hi Ladder,
just trying to reach Lars (Evildent Resi) by phone but he doesn't seem to be at home. I think he could answer your questions. I'll send him an e-mail to direct him to your questions ... and Stefan Hessler too, of course. I could answer to parts of your problem but not in every detail. I fear, this would lead you to more misunderstandings than help.
Keep calm, help is at hand ...
Kind regards, Bambi

[Bambi]

Hi Longdude,
just to correct this: 'Bambi, you are a genius, and you too Lars!'
Lars is the genius!!! I just do remember most things around motorcycles that caught my interest ...
Kind regards, Bambi

[robmoto]

Hi everyone , It has been hot here 40 celsius some day,s and I have been been working outside in it doing work arround my place moving dirt and cutting down trees and stuff.
Luckily no fires in my area at the moment, my blue big is now fully apart to get ready to paint I bought all the bling bits 6 months ago but had no time to do the job .
Ray 43 fly wheel should go on as far as I know, a rattle gun works good to get those big nuts of ballancers and alike.
Big screens wider ones if you run bark busters they will hit the screen I have tried this allready. cheers.

[robmoto]

Originally Posted by Simosez

G'day everybody, its been a while since i posted in here. haven't ridden the big girl in a while. fractured my right humurus (no, it wasn't) when i fell off the KTM back in september. anyway I'm back on now, the arm is not 100% but it will do.
I have a slightly dodgy starter motor. i pulled it apart to clean and inspect it and found two sections of the commutator smeared/shorted together. I fixed the commutator as best i could and gave it a good clean up. it works better now but won't spin fast enough to fire it up in the cold weather like you blokes on the other side of the planet have now. it starts easy here in 30 to 40 degree C temps we have at the moment
anyway i was wondering if this starter motor was used in any other applications? did a part no. search on google but have had no luck. it appears to be DR BIG only.
pn. 31100-44B00-H17
i am going to replace the brushes and increase the cable size and see if that helps. i have a new battery already.

any other ideas or assistance would be appreciated.

Rob, i will get those jets to you soon. sorry for the delay.

Simmon there are 4 brushes inside don,t forget just not 2. I had to go and buy more jets not happy never again.

[bluesman]

Originally Posted by Ladder106

Oh...do you mean the valve timing is different on the SR43 also. I have to have a look at that. Hopefully the service manual lists it.

Thanks

Simosez,

Had a bit of a search-around and pretty much found what you did. There are a few places that will sell the armature only if that is your problem. German ebay also has brushes for sale.

I wouldn't think that there would be that much variation in starter motors across the whole motorcycle industry. Just looking at the motors on all my bikes it seems their size and mounting points are all about the same.

Maybe a trip to the local salvage/breaker yard with motor in hand would be beneficial.

Or just simply wait for Lars to come online :) I am sure he has done it in some form or shape and will have answers for you right away.
I just been thinking - why not to do full transplant, e.g. SR43 motor + brains+coils into SR41 frame? It won't be big deal if you use "bridge" wiring except it will require a lot of looking at diagram and tracing :)

[MrPopples]

Lars, stefan,

Thx for your answers,
really helpful :)

Job is a bit *complicated* right now, that's why my answer is quite delayed ... and rather short :(
I'll keep you updated about what I'm doing about this fork ...

Thx,
Guillaume.

[Ladder106]

why not to do full transplant, e.g. SR43 motor + brains+coils into SR41 frame?

I'm a big chicken when it comes to electricity....that's why I've stayed away from bikes with tiny servo-motor for everything short of putting the stand down for you (although that is probably not far off)

I do much better with nuts, bolts, wrenches and, of course, hammers

The SR42 engine is at least out of the frame. The SR41 is on the work stand and I'm waiting for all the

YOU ARE OUT OF YOUR MIND

opinions to come through before I attempt a transplant.

Thanks, everyone, for their ideas and assistance so far.