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Search: Posts Made By: PaulRS
Forum: Airheads 05-26-2015, 08:21 PM
Replies: 5
Views: 256
Posted By PaulRS
The bolts used to fit the shocks are 10mm. Same...

The bolts used to fit the shocks are 10mm.
Same for the stud on the final drive, the #4 bushing is a spacer between the eye of the shock and the housing (from memory).

Aftermarket shocks come...
Forum: Airheads 05-26-2015, 09:31 AM
Replies: 2
Views: 208
Posted By PaulRS
Looks like your's had a bit of damage from a...

Looks like your's had a bit of damage from a spinning thrustbearing.

Here's a pic of a used, but good one.
The neck is there, but not so butchered as yours.

http://i.imgur.com/smmjLlc.jpg
...
Forum: Airheads 05-15-2015, 04:44 AM
Replies: 35
Views: 1,500
Posted By PaulRS
Looking at an empty enginecasing, on the left it...

Looking at an empty enginecasing, on the left it is possible for the screw holding the timing cover to act as a set screw.
Also on the left, there's a drilling from the lower left fastener from the...
Forum: Airheads 05-13-2015, 04:34 AM
Replies: 9
Views: 436
Posted By PaulRS
What he says. And the Ural/Dnjepr turn...

What he says.
And the Ural/Dnjepr turn opposite, something to do with 3-shaft BMW and 2-shaft Ural boxes.

What can be done is use an BMW engine and /2 frame, fit a Ural box, swingarm and FD.
You...
Forum: Airheads 04-24-2015, 12:28 AM
Replies: 8
Views: 707
Posted By PaulRS
/5 rockers use bronze bushes, so why not? ...

/5 rockers use bronze bushes, so why not?

Paul.
Forum: Airheads 04-20-2015, 09:39 AM
Replies: 12
Views: 463
Posted By PaulRS
Hi yourself. :D Welcome to the Airhead...

Hi yourself. :D

Welcome to the Airhead Nuthouse.

To understand these bikes/engines, some short info about it's layout.
The dry clutch, (car-like) is between the engine and the gearbox, and as...
Forum: Airheads 04-03-2015, 06:15 AM
Replies: 13
Views: 739
Posted By PaulRS
Why not relace the wheel? Give the rim 5 mm...

Why not relace the wheel?
Give the rim 5 mm off-set to the left.

Paul.
Forum: Airheads 04-02-2015, 02:51 PM
Replies: 6
Views: 508
Posted By PaulRS
You need to solder a resistor parallel to the...

You need to solder a resistor parallel to the led, not in series.

See pic.

http://i.imgur.com/gw14Ccs.png

Paul.
Forum: Airheads 03-31-2015, 04:49 PM
Replies: 42
Views: 2,008
Posted By PaulRS
Good tools don't neccesary needs to be expensive....

Good tools don't neccesary needs to be expensive.

I bought this lot over the years;

http://i.imgur.com/UP2HVSal.jpg

The bore gauge set (50-160 mm) I bought new for around 75€, the screw...
Forum: Airheads 03-31-2015, 04:20 AM
Replies: 42
Views: 2,008
Posted By PaulRS
Oilflow around the front bearing; Oil comes...

Oilflow around the front bearing;

Oil comes in from the filterhousing via a drilling at 4 o'clock position.
A second drilling feeds the camshaft, at 6 o'clock, or 6:30 for newer engines.
Rockers...
Forum: Airheads 03-29-2015, 08:24 AM
Replies: 7
Views: 360
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: 437
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: 437
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: 60
Views: 4,958
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: 582
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: 3,435
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: 421
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: 421
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: 10
Views: 495
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: 5,955
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: 1,097
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: 7,224
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: 1,052
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: 694
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: 1,656
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: 756
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: 478
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: 1,401
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: 10,607
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: 10,607
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: 528
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: 1,012
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: 691
Views: 123,122
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: 1,086
Views: 96,779
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: 1,086
Views: 96,779
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: 497
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: 2,895
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: 6,183
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: 2,895
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: 13,500
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...
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