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Search: Posts Made By: Big Bamboo
Forum: Airheads Yesterday, 12:05 PM
Replies: 19
Views: 631
Posted By Big Bamboo
Did you adjust the valves at their respective...

Did you adjust the valves at their respective TDC? You have to rotate the engine 360 degrees between adjustments. Just checking... it's been done wrong before.
Forum: Airheads Yesterday, 09:52 AM
Replies: 9
Views: 397
Posted By Big Bamboo
Hard to tell from the video, seems a little loud...

Hard to tell from the video, seems a little loud to me. Did you adjust the rocker end play before you adjusted the valves?
Forum: Airheads 08-26-2014, 05:26 PM
Replies: 12
Views: 436
Posted By Big Bamboo
They do, but at some point they changed the rear...

They do, but at some point they changed the rear mounts from the metal cross piece with two wing nuts to rubber pads with a wire bale that hooks under the center tube. So, early tank on later frame;...
Forum: Airheads 08-26-2014, 12:53 PM
Replies: 19
Views: 631
Posted By Big Bamboo
First of all, welcome to the club! I'd want to be...

First of all, welcome to the club! I'd want to be checking the valve adjustment on the cylinder with 0 psi. Even a very worn cylinder will show some compression. Also, when you did the compression...
Forum: Airheads 08-25-2014, 10:56 PM
Replies: 12
Views: 674
Posted By Big Bamboo
BMW recommends having a spare lower dust seal, as...

BMW recommends having a spare lower dust seal, as they usually get destroyed removing the lower bearing. #12 in the fiche: https://www.maxbmwmotorcycles.com/fiche/DiagramsMid/B0000578.png?v=04282014
Forum: Airheads 08-25-2014, 09:55 PM
Replies: 9
Views: 593
Posted By Big Bamboo
Is the MC still on the bike? Is there any residue...

Is the MC still on the bike? Is there any residue in the bottom of the bowl? You want to remove that, not pack it down the hole. The hole you are looking for is about the diameter of a bristle on a...
Forum: Airheads 08-23-2014, 10:59 PM
Replies: 9
Views: 593
Posted By Big Bamboo
Yes, two holes; one in front the other, and you...

Yes, two holes; one in front the other, and you don't want to be working the lever while you're poking something in there to clean it. You'll damage the seal. I like to use dem bamboo kabab skewers;...
Forum: Airheads 08-23-2014, 10:36 AM
Replies: 53
Views: 2,757
Posted By Big Bamboo
Sticking advance? Check your timing with a...

Sticking advance? Check your timing with a strobe, should be full advance, F mark centered in window, at 3500 rpm and return to S mark at idle.
Forum: Airheads 08-23-2014, 10:14 AM
Replies: 25
Views: 1,247
Posted By Big Bamboo
Hucky lists 80mm for dual disc setups:...

Hucky lists 80mm for dual disc setups: http://www.bmwhucky.com/010034.html
Forum: Airheads 08-22-2014, 10:35 PM
Replies: 5
Views: 314
Posted By Big Bamboo
Repainted ones are going for over $900 in Germany...

Repainted ones are going for over $900 in Germany with fresh paint and no cap or pads. Since the early caps are NLA, except for chrome locking ones.... ...
Forum: Airheads 08-20-2014, 04:48 PM
Replies: 31
Views: 847
Posted By Big Bamboo
Looks pretty good to me! Remember, they are only...

Looks pretty good to me! Remember, they are only original once. I've seen powder coating mess up more parts than not...
Forum: Airheads 08-20-2014, 04:04 PM
Replies: 3
Views: 258
Posted By Big Bamboo
Nope, looks like a San Jose brace. Stock was a...

Nope, looks like a San Jose brace. Stock was a piece of stamped sheet metal.
Forum: Old's Cool 08-20-2014, 12:35 PM
Replies: 15,215
Views: 8,706,642
Posted By Big Bamboo
http://media-cache-ak0.pinimg.com/736x/ff/07/56/ff...

http://media-cache-ak0.pinimg.com/736x/ff/07/56/ff0756f2f8c6a0ca151ca8f8c9cc6c7a.jpg
Forum: Airheads 08-20-2014, 11:49 AM
Replies: 69
Views: 2,466
Posted By Big Bamboo
Looks notwithstanding... I liked mine when I...

Looks notwithstanding... I liked mine when I lived in the high desert around Tucson, Arizona. It kept my ass warm when it was freezing cold and it kept my balls from getting scorched on the hot vinyl...
Forum: Airheads 08-20-2014, 10:21 AM
Replies: 68
Views: 2,193
Posted By Big Bamboo
The two connectors for the solenoids can be...

The two connectors for the solenoids can be plugged together, they are matching male and female, and this will not effect anything. That vent next to the starter should be plugged or your crankcase...
Forum: Airheads 08-19-2014, 01:02 PM
Replies: 464
Views: 44,799
Posted By Big Bamboo
Pssst, Disston, the holes don't match any fender...

Pssst, Disston, the holes don't match any fender brace I've ever seen on a 70s BMW... :deal
Forum: Airheads 08-19-2014, 12:40 PM
Replies: 464
Views: 44,799
Posted By Big Bamboo
BMW Elephant Ear Fender

I'm pretty sure that's not for a BMW... http://www.ebay.com/itm/BMW-AIRHEAD-Elephant-Ear-Front-Fender-1974-1984-R75-R90-R100-/171426844420?pt=Motorcycles_Parts_Accessories&hash=item27e9d60f04&vxp=mtr
Forum: Airheads 08-18-2014, 08:22 PM
Replies: 9
Views: 530
Posted By Big Bamboo
I forgot to mention, when my '71 was doing this,...

I forgot to mention, when my '71 was doing this, the flat all metal key worked when the black knob one wouldn't. Apparently they are machined a bit longer, or the lack of knob allows them to sit...
Forum: Airheads 08-18-2014, 05:07 PM
Replies: 9
Views: 530
Posted By Big Bamboo
The problem could be as simple as the ignition...

The problem could be as simple as the ignition "nail" key not pushing down hard enough to keep the contacts firmly together. The backfire after cutting out can occur after a brief interruption of the...
Forum: Airheads 08-18-2014, 03:00 PM
Replies: 50
Views: 2,075
Posted By Big Bamboo
I pulled the mufflers off my R75/5 once, just to...

I pulled the mufflers off my R75/5 once, just to see how it would sound. Made it one time around the block and put them back on. The biggest problem was backfiring on deceleration... :freaky
Forum: Airheads 08-16-2014, 04:11 PM
Replies: 32
Views: 1,405
Posted By Big Bamboo
My 2 cents; I used a product called Slime in my...

My 2 cents; I used a product called Slime in my tubes and it worked well. I had three flats and never got the rapid deflation the OP described. Always carried a new tube and spark plug tire pump to...
Forum: Airheads 08-16-2014, 11:30 AM
Replies: 21
Views: 883
Posted By Big Bamboo
Spare Transmission

"It would now be a good time to keep an eye out for a spare transmission, before it's needed." True, that, which is why I aimed him at ebay and the various BMW dealers that sell used parts. I have...
Forum: Airheads 08-15-2014, 09:50 PM
Replies: 18
Views: 901
Posted By Big Bamboo
The recall wheel will not have the extra bracing...

The recall wheel will not have the extra bracing shown on the lower wheel:...
Forum: Airheads 08-15-2014, 08:38 PM
Replies: 21
Views: 883
Posted By Big Bamboo
That boot where the cable goes into the...

That boot where the cable goes into the transmission was loose. Easy path for water entry... When we drained it the second time, it was cloudy again, and the milky layer separated from the oil over...
Forum: Airheads 08-15-2014, 06:53 PM
Replies: 6,378
Views: 1,277,577
Posted By Big Bamboo
Very Nice! Is the fender brace a one off? ...

Very Nice! Is the fender brace a one off? ...
Forum: Airheads 08-15-2014, 01:38 PM
Replies: 17
Views: 679
Posted By Big Bamboo
I find the MaxBMW fiche an excellent source of...

I find the MaxBMW fiche an excellent source of information on the various models. Here's the one for 1984-87 R80 models. Look under "steering" for cables:...
Forum: Airheads 08-15-2014, 12:35 PM
Replies: 18
Views: 901
Posted By Big Bamboo
Note: carb adjustment should be done with the...

Note: carb adjustment should be done with the bike at operating temperature, as in after a 10-15 minute ride, and ONLY if the timing and valve adjustment are known to be correct. Do you have a strobe...
Forum: Airheads 08-15-2014, 12:01 PM
Replies: 17
Views: 679
Posted By Big Bamboo
The cable ends are NOT the same over the years!...

The cable ends are NOT the same over the years! The barrel at the carb end got bigger in later years (I think) and the way it hooks into the perches changes as well. Look for parts to match your year...
Forum: Airheads 08-14-2014, 11:37 PM
Replies: 16
Views: 469
Posted By Big Bamboo
Sounds like your battery died. Still doesn't...

Sounds like your battery died. Still doesn't explain how your oil light is coming on without being connected.
Forum: Airheads 08-14-2014, 08:52 PM
Replies: 21
Views: 883
Posted By Big Bamboo
OK, new input; he says the noise started after he...

OK, new input; he says the noise started after he got water in the transmission while washing it. Rode it for a couple months like that before he checked the oil and noticed it "looked like a latte"....
Forum: Airheads 08-14-2014, 07:53 PM
Replies: 16
Views: 469
Posted By Big Bamboo
Hmmm, is the wire resting against the frame or...

Hmmm, is the wire resting against the frame or engine case or worn through and shorting anywhere?
Forum: Airheads 08-14-2014, 07:40 PM
Replies: 16
Views: 469
Posted By Big Bamboo
Without the wire connected to the sender?

Without the wire connected to the sender?
Forum: Airheads 08-14-2014, 07:36 PM
Replies: 75
Views: 3,493
Posted By Big Bamboo
Broom handle or similar through the spokes above...

Broom handle or similar through the spokes above the drive shaft.
Forum: Airheads 08-14-2014, 07:29 PM
Replies: 16
Views: 469
Posted By Big Bamboo
Something isn't right. Does the red charge light...

Something isn't right. Does the red charge light come on when the ignition is turn on? If only one light comes on, and the wire to the oil sender is disconnected, I think you are seeing the charge...
Forum: Airheads 08-14-2014, 07:01 PM
Replies: 16
Views: 469
Posted By Big Bamboo
First of all, these bikes are known to smoke from...

First of all, these bikes are known to smoke from the left side, if parked for any length of time on the side stand. Not the end of the world. I hope you are checking the oil level with the bike on...
Forum: Airheads 08-14-2014, 02:44 PM
Replies: 873
Views: 311,736
Posted By Big Bamboo
Any issues with the missing lower fork/fender...

Any issues with the missing lower fork/fender brace?
Forum: Airheads 08-14-2014, 10:39 AM
Replies: 21
Views: 883
Posted By Big Bamboo
Unfortunately neither he nor I have a decent...

Unfortunately neither he nor I have a decent sense of smell, so we were unable to tell the difference. Which bearing in the Paralever are you referring to?
Forum: Airheads 08-13-2014, 10:36 PM
Replies: 21
Views: 883
Posted By Big Bamboo
Did it chatter in all gears, or just first?

Did it chatter in all gears, or just first?
Forum: Airheads 08-13-2014, 09:18 PM
Replies: 21
Views: 883
Posted By Big Bamboo
I don't think it's a tooth, the sound is too...

I don't think it's a tooth, the sound is too rapid, like a rattle.
Forum: Airheads 08-13-2014, 02:17 PM
Replies: 6,378
Views: 1,277,577
Posted By Big Bamboo
So, you're running it without a lower fork brace?...

So, you're running it without a lower fork brace? Any noticeable effects on handling?
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