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Search: Posts Made By: PaulRS
Forum: Airheads Yesterday, 08:24 AM
Replies: 7
Views: 238
Posted By PaulRS
You have a Voltmeter only, or does it also...

You have a Voltmeter only, or does it also measures resistance (Ohms)?

If it does resistance, testing the rotor is simple.
Pull up both carbon brushes and shove a piece of paper between the...
Forum: Airheads 03-28-2015, 09:49 AM
Replies: 7
Views: 298
Posted By PaulRS
Ok, looking through the links you guys gave,...

Ok, looking through the links you guys gave, there's some wiring missing, both brushes are not connected. :huh
There should be a DF and D+ or else the rotor doesn't get magnetized and no joy.

The...
Forum: Airheads 03-27-2015, 09:12 AM
Replies: 7
Views: 298
Posted By PaulRS
R25/3 no charge.

A friend brought me this R25 in with a charging problem.

He took the generator out for some rest work, made notes to how it was wired, lost this notes and rewired it by memory. :D

So now it...
Forum: Airheads 03-22-2015, 10:57 AM
Replies: 51
Views: 3,184
Posted By PaulRS
Me like the speedo, where's that from? Can...

Me like the speedo, where's that from?

Can they do the revs on the big scale and the speed on the small one ?

Paul.
Forum: Airheads 03-22-2015, 04:29 AM
Replies: 12
Views: 396
Posted By PaulRS
I had similar problems with an R90/6 engine built...

I had similar problems with an R90/6 engine built up from spareparts.
Turned out to be a warped flywheel.
When the clutch is pulled, the flywheel is pushed against the axial bearing ring, in this...
Forum: Airheads 03-22-2015, 04:22 AM
Replies: 30
Views: 2,937
Posted By PaulRS
Than the oil will not flow trough passage 16 (in...

Than the oil will not flow trough passage 16 (in the pic above, some posts back), no oil to the pressure switch and rear main.
Rockers are supplied, though.

Paul.
Forum: Airheads 03-18-2015, 05:58 AM
Replies: 5
Views: 331
Posted By PaulRS
Ok, leave well alone, then :D But I'd check...

Ok, leave well alone, then :D

But I'd check if that stud holds its torque.
Put a big washer and a proper piece of tube over the stud and torque the top nut to 35-40 Nm, if it holds, you're good,...
Forum: Airheads 03-18-2015, 05:15 AM
Replies: 5
Views: 331
Posted By PaulRS
I'd pull the stud and have a look inside for a...

I'd pull the stud and have a look inside for a previous repair, maybe a Heli-coil hides inthere.
Oilfeed comes via a small hole at the 12 o'clock position.

Valves look alright to me, need a...
Forum: Airheads 03-14-2015, 10:59 AM
Replies: 11
Views: 415
Posted By PaulRS
In between the 3 sets of 2 bolts are locator...

In between the 3 sets of 2 bolts are locator pins, also 3 of them.
Things always stick there.

Pry there or/and work them loose with a plastic mallet.
Lever, taptaptap and it will come apart.
...
Forum: Airheads 03-05-2015, 03:09 PM
Replies: 45
Views: 5,541
Posted By PaulRS
Crazy, no. Possible, yes. /5 and/or /6...

Crazy, no.

Possible, yes.

/5 and/or /6 front forks give as much as a G/S fork. 210ish mm of travel.
Lace a 21" rim on your hub.

At the rear, +40mm longer shocks give + 50mm riding hight.
...
Forum: Airheads 03-05-2015, 02:25 PM
Replies: 24
Views: 837
Posted By PaulRS
I've seen those. But most of them behind...

I've seen those.

But most of them behind A'dam central station................:D :puke1

Paul.
Forum: Airheads 03-05-2015, 11:14 AM
Replies: 37
Views: 4,382
Posted By PaulRS
Never bought a brandnew bike. My current...

Never bought a brandnew bike.

My current workhorse is a 04/2000 R1100RS.
A trade-in from my local stealer who sold it new to an older biker who used to ride K-models.
The old geezer couldn't get...
Forum: Airheads 03-04-2015, 08:45 AM
Replies: 20
Views: 920
Posted By PaulRS
Adjust the valves first to 0.10 in and 0.20 ex...

Adjust the valves first to 0.10 in and 0.20 ex (mm) cold.
Then remove the carb's and do the compression test again.

Might be as simple as maladjusted valve(s).

Paul.
Forum: Airheads 03-01-2015, 03:04 AM
Replies: 15
Views: 527
Posted By PaulRS
All 5-speed boxes have the same gear ratios. ...

All 5-speed boxes have the same gear ratios.

The difference for the different models is made in the final drive.

Paul.
Forum: Airheads 02-28-2015, 07:47 AM
Replies: 24
Views: 1,387
Posted By PaulRS
An piece of allenkey, 5mm and 50 mm long serves...

An piece of allenkey, 5mm and 50 mm long serves me well for 30ish years.
Along with the oem bolt.

And if the rotor won't pop right off, a sharp blow with a hammer on the bolt's head will do the...
Forum: Airheads 02-24-2015, 02:46 PM
Replies: 8
Views: 648
Posted By PaulRS
Early /6 http://i.imgur.com/XwWF1wLl.jpg ...

Early /6

http://i.imgur.com/XwWF1wLl.jpg

Later /6

http://i.imgur.com/CzbpG9Yl.jpg

Just look at the shifters and don't get confused by the rest.
Forum: Airheads 02-21-2015, 07:52 AM
Replies: 3
Views: 412
Posted By PaulRS
Recommanded is a 90/90-18 at the front and a...

Recommanded is a 90/90-18 at the front and a 4.00-18 at the rear.

Going wider at the front makes for heavier steerring and wider at the rear, you can run into all sorts of trouble, heavier...
Forum: Airheads 02-16-2015, 07:35 AM
Replies: 29
Views: 1,243
Posted By PaulRS
You'll need to get back to the basics. So...

You'll need to get back to the basics.

So check valves and, if possible, do a compressioncheck with the carbs removed.
Check the timing.
Recheck the chokes, left and right can be interchanged...
Forum: Airheads 02-15-2015, 04:48 PM
Replies: 138
Views: 9,816
Posted By PaulRS
Those SKF seals really work for friction, or...

Those SKF seals really work for friction, or sticking.
Comparing those against oem seals and you can actually feel the difference in movement.
Most important is the 'break-free' force, with the SKF...
Forum: Airheads 02-15-2015, 02:35 PM
Replies: 138
Views: 9,816
Posted By PaulRS
When I rebuilt my forks, I went with 50 mm...

When I rebuilt my forks, I went with 50 mm spacers to shorten them.

Prutser then adviced me to use low-friction seals, the green ones from SKF, low-visc oil, 5 wt or lower I think, thin as piss....
Forum: Airheads 02-15-2015, 02:08 PM
Replies: 8
Views: 448
Posted By PaulRS
In my book it is a gasket or sealant, not both. ...

In my book it is a gasket or sealant, not both.

So a base gasket, alu or paper, and an O-ring on both top studs.
And a smear of grease on the pushrod tube rubbers to help them in.

Paul.
Forum: Airheads 02-12-2015, 07:57 AM
Replies: 19
Views: 869
Posted By PaulRS
Double image..... Look for worn chain and/or...

Double image.....

Look for worn chain and/or sprockets.
The nose of the camshaft where the auto-advance sit, and in the end the points are running, could be crooked.
It can be straightened.
...
Forum: Airheads 02-12-2015, 04:56 AM
Replies: 663
Views: 104,802
Posted By PaulRS
Nice, very nice bike. Now I need to come...

Nice, very nice bike.

Now I need to come over and see it for real.
(still need to talk to Bas about that motogadget clock.)

Paul.
Forum: Airheads 02-12-2015, 04:51 AM
Replies: 1,054
Views: 90,298
Posted By PaulRS
Not trying to be a smartass here, but it is my...

Not trying to be a smartass here, but it is my experience that over time/miles, the studs creep back to their relaxed position and the play is back again, especially on the older bikes. /5-/6.

And...
Forum: Airheads 02-11-2015, 06:48 AM
Replies: 1,054
Views: 90,298
Posted By PaulRS
C clamp trick doesn't work here, the rocker...

C clamp trick doesn't work here, the rocker end-blocks (sp?) are fixed on the buttons pressed in the head.

Better shim, and put one shim at the lower end, so when a needlebearing fails, no needles...
Forum: Airheads 02-11-2015, 01:41 AM
Replies: 4
Views: 430
Posted By PaulRS
According to MaxBMW you got a R100/T. The 40...

According to MaxBMW you got a R100/T.

The 40 mm Bings are correct, the /103/104 not so.
But that shouldn't be a problem.
...
Forum: Airheads 02-07-2015, 12:38 PM
Replies: 50
Views: 2,658
Posted By PaulRS
A two-legged puller will do the job. Pull the...

A two-legged puller will do the job.
Pull the sprocket and bearing of in one go.

Next you'll see 2 threaded holes in the carrier, at 3 and 9 o'clock.
Those are used to pull the carrier out, a...
Forum: Airheads 02-07-2015, 11:59 AM
Replies: 108
Views: 5,449
Posted By PaulRS
Prutser is refering to a R1200 shock, which has a...

Prutser is refering to a R1200 shock, which has a slightly different set-up.

It, as on many other shocks, has a lower bumper and a wider cup, integrated in the spring seat.
That will compress the...
Forum: Airheads 02-05-2015, 04:21 PM
Replies: 50
Views: 2,658
Posted By PaulRS
It can be done with the engine in the frame. ...

It can be done with the engine in the frame.

Quick run trough the 'how-to'.
Remove front cover.
Remove electrical parts.
Remove camchain cover.

Now it gets tricky, remove camchain, bearing...
Forum: Airheads 02-03-2015, 08:14 AM
Replies: 175
Views: 12,302
Posted By PaulRS
Ok, some notes/measurements I took when building...

Ok, some notes/measurements I took when building my do it all, go anywhere bike.

It started life as a 75/6.
I first lowered the rear swingarm to max, until the U-joint started rubbing, than a tad...
Forum: Airheads 01-31-2015, 05:04 AM
Replies: 349
Views: 34,948
Posted By PaulRS
BMW model years starts after the works...

BMW model years starts after the works holidaymonth of august the previous year.

So model '73 is built from 01-sep-'72.

Paul.
Forum: Airheads 01-21-2015, 03:22 AM
Replies: 19
Views: 1,336
Posted By PaulRS
If you find excessive play again on the rockers,...

If you find excessive play again on the rockers, the recommended way is loosen both top and bottom nut. squeeze together and fasten again.

It is my experience that that works, but doesn't last....
Forum: Airheads 01-19-2015, 04:47 AM
Replies: 30
Views: 1,622
Posted By PaulRS
I'd give Araldite a try. Or something similar...

I'd give Araldite a try.
Or something similar like 2k alu from Loctite.

Vee that crack, clean, clean again and give it a smear of your favorite posion.
Smear liberally and push a fitting,...
Forum: Airheads 01-13-2015, 07:56 AM
Replies: 1,054
Views: 90,298
Posted By PaulRS
Sorry, but you cannot pull the tubes too much...

Sorry, but you cannot pull the tubes too much trough the triples.

There's a small notch, 5 mm from the top of the tube, that needs to be flush with the top of the top triple.
Else your slider...
Forum: Some Assembly Required 01-02-2015, 09:58 AM
Replies: 142
Views: 55,464
Posted By PaulRS
Tiny Tech Team rocks. :thumb I certainly...

Tiny Tech Team rocks. :thumb

I certainly could use a pair of small hands to help me out where my big, fat fingers can't go.
They might even help with chores the wife trows at me. :rofl

Keep...
Forum: Airheads 01-02-2015, 09:45 AM
Replies: 71
Views: 3,563
Posted By PaulRS
Not an interweb hearsay, but in fact the approved...

Not an interweb hearsay, but in fact the approved method.
Heat is your friend here.

But a few cuts with an angle grinder and a cold chisel works for me every time.

An angle grinder in the...
Forum: Airheads 12-26-2014, 04:42 PM
Replies: 19
Views: 1,110
Posted By PaulRS
When installing new O-rings I always use a little...

When installing new O-rings I always use a little grease.
In aviation we use a product called 'Park-O-lube', but any grease will do just fine.

All other parts can be washed in a solvent, but...
Forum: Airheads 12-26-2014, 04:28 PM
Replies: 13
Views: 814
Posted By PaulRS
To remove the rotor, take a 5 mm allankey and...

To remove the rotor, take a 5 mm allankey and grind off a length of 50 mm.

Remove the bolt holding the rotor and insert the cut-off piece of the allan key.
Put the bolt back in and fasten, the...
Forum: Airheads 12-26-2014, 03:59 PM
Replies: 33
Views: 2,553
Posted By PaulRS
Sizes, what sizes? I recently got me a spare...

Sizes, what sizes?

I recently got me a spare rear wheel (for free) with the spline cup removed.
With it came a new cup.

Now the holes in the cup measures 6,35ish mm, using the shank of a 1/4"...
Forum: Airheads 12-21-2014, 06:16 AM
Replies: 1,526
Views: 108,178
Posted By PaulRS
I got one of those as my daily runner, 213 kkm...

I got one of those as my daily runner, 213 kkm and still going strong.
One of the best allrounders. :D
Underestimated though. :rolleyes:

Paul.
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