airhead parts - the dark secrets revealed - Page 25

Barbara · 03-29-2011, 10:40 AM

HI Folks,

This is too cool for words---almost. My first post on this site, and I find all sorts of items and tips for Airheads! Perfect! I got my first BMW (R80/7) a year ago last fall, built it over the winter, and ride across the country and back last Spring. I've put many years and miles on British bikes, but not on a Beemer, and I love the big, blue beastie!

I do have a question about the air filter element: my bike is registered as a 1980, but the engine number says 1979. The OEM filter element seems to be too large for the square case on the engine. There is one in there, filtering the air--more or less--but it is time to replace it. I've already tried the one from the dealer, and it is too large by about half an inch. Any ideas? Anyone run across this, or have a source for the alternate size filter? K&N perhaps?

So, right. Huge site, sort of intimidating, but fun. I think I'll enjoy it here...

mark1305 · 03-29-2011, 01:09 PM

Welcome aboard! Now fill out some more of your profile to give folks and idea of where you are in the world.

The air cleaner should be the same for all those years. My 83 R80 ST uses the same part number, but I have a K&N that came with the bike. The OEM part # is 13721337080.

The K&N matches the outside dimensions of the airbox, give or take a few mm oversize, and lid so that it gets squeezed between them to make the seal around its rubber "frame". I'm guessing the OEM filter should be the same.

Be aware that some folks that do routine lube oil analysis on their airheads claim that K&N filters result in higher silica numbers in the oil assay. That usually means more sand/dust is getting through compared to OEM type filters. I don't know that first hand, but have read it more than once.

danedg · 03-29-2011, 02:34 PM

Quote:

Originally Posted by Barbara

HI Folks,

This is too cool for words---almost. My first post on this site, and I find all sorts of items and tips for Airheads! Perfect! I got my first BMW (R80/7) a year ago last fall, built it over the winter, and ride across the country and back last Spring. I've put many years and miles on British bikes, but not on a Beemer, and I love the big, blue beastie!

I do have a question about the air filter element: my bike is registered as a 1980, but the engine number says 1979. The OEM filter element seems to be too large for the square case on the engine. There is one in there, filtering the air--more or less--but it is time to replace it. I've already tried the one from the dealer, and it is too large by about half an inch. Any ideas? Anyone run across this, or have a source for the alternate size filter? K&N perhaps?

So, right. Huge site, sort of intimidating, but fun. I think I'll enjoy it here...

Why does he have a snowflake on the front and wire at the back?

Rapid Dog · 03-29-2011, 03:01 PM

Quote:

Originally Posted by danedg

Why does he have a snowflake on the front and wire at the back?

Look closer mejefe', it's got snowflakes

I bought a UNI on ebay, way less expensive than the K&N.
Fitment at the rear corners of the airbox could be better though...

Barbara · 03-29-2011, 03:11 PM

Yep, snowflakes and tubeless front and rear---my first cast wheels and (obviously) first tubeless tires on a bike, ever. Her name, btw, is Millie, because (compared to the rest of the stable) she is "Thoroughly Modern".....oh, and if anyone wants to trade a kilometer speedo for a mile speedo, I'd be up for that. Her speedo broke, and the only one I could find was from a very nice guy in British Columbia, and it is in kilometers.

OK---off to fill in profile......

danedg · 03-29-2011, 03:21 PM

Quote:

Originally Posted by Rapid Dog

Look closer mejefe', it's got snowflakes

I bought a UNI on ebay, way less expensive than the K&N.
Fitment at the rear corners of the airbox could be better though...

Sucks gettin' old!

Beemerboff · 03-29-2011, 07:44 PM

The aif fliter element will go on upside down and or back to front, but it looks the wrong size when it is----------.

Forget the old wives tales on K & N s - folks like Honda were asking $130- for OEM filters 10 years ago , so they didnt want anyone buying a everlasting $80- filter.

With a properly prepared K & N and a verifiable full lifecycle test the K & N works better than stock, over the life of a stock filter.

Test which show different results usually concentrate on the first couple of hours of the filters life, where a new paper filter will outperform a newly oiled K & N, but the paper filter gets worse from day one while the the K&N gets better.

I switched to a home made a Uni on my G/Ss here in dusty Oz because any filter blocks PDQ, and with my Uni system I can pack a spare foam element which is always clean and ready to go in, if I run into a lot of dust.

Speedo66 · 03-31-2011, 12:18 PM

I have an original 1971 tool kit, tool roll case, and owners manual for sale, link here: http://www.advrider.com/forums/showt...6#post15553716

Tripletreat · 04-15-2011, 07:08 PM

If you gotta have a K&N on your old Boxer, I'll be very glad to sell you mine!

R11STEW · 04-17-2011, 05:20 AM

This may be 205, but I went to NAPA and bought bulk flat hose for my '77 R100RS (40mm Carbs) pretty cheap. This is a good alternative to OEM and very inexpensive.

Cut to size for a perfect fit:

JMforPres · 04-17-2011, 07:45 AM

Head to Carb Hose/Connector

That is a good tip. Cheaper and more readily available

Jon

wirewrkr · 04-17-2011, 09:00 AM

Not Good.
I just checked at Napaonline, that hose lists at 16.11 per foot.
You have to buy a foot. the factory inlet rubbers are only $7.28 each for either 32 or 40mm
ALSO and most important, it is NOT fuel hose, it is radiator hose, probably will not last, will turn to mush after awhile and get sucked into the engine as it melts a way. ESPECIALLY with the alcohol impregnated fuel we are forced to buy these days.
Can't recommend this one.

Beemerboff · 04-17-2011, 04:38 PM

If you want good cheap hose some of the stuff on Jap cars between the filler and the fuel tank fits , and it is designed to last the life if the car.

Remove it yoursef and a lifetime supply will cost a couple of bucks.

Or less.

I was sent a couple of pieces of unmarked hose when I ordered the proper bits for my /7 a good few years back.

Failure showed up PDQ as one carb fell of the stub when I was running, luckily at slow speed.

And luckily in sight of a Jap wrecker.

Didnt seem to harm the valve seats any - they are still the origonals and have gone 150,000 km since- might even have improved them!

ride57 · 04-23-2011, 01:22 AM

While trying to see if starter brushes are available at Stockers starters (I had got a rebuild kit for the Ducati) I didn't see any rebuild kits for BMW. But this is what they sell.

http://www.stockers.com/index.php?cd...BMW+Motorcycle

wirewrkr · 04-23-2011, 11:18 AM

Quote:

Originally Posted by ride57

While trying to see if starter brushes are available at Stockers starters (I had got a rebuild kit for the Ducati) I didn't see any rebuild kits for BMW. But this is what they sell.

http://www.stockers.com/index.php?cd...BMW+Motorcycle

Too bad they have no idea what their starter fits. WOW a starter that works for 8 AND 9 tooth applications!
Also these are the cheap CHINESE knockoffs of the piece of shit VAleo.
What a deal, but hey thanks for looking>
I get my brush kits from.....BMW

03-29-2011, 10:40 AM	#361
Barbara Adventurer Joined: Mar 2011 Location: Skagit Co., WA Oddometer: 16	Too cool! HI Folks, This is too cool for words---almost. My first post on this site, and I find all sorts of items and tips for Airheads! Perfect! I got my first BMW (R80/7) a year ago last fall, built it over the winter, and ride across the country and back last Spring. I've put many years and miles on British bikes, but not on a Beemer, and I love the big, blue beastie! I do have a question about the air filter element: my bike is registered as a 1980, but the engine number says 1979. The OEM filter element seems to be too large for the square case on the engine. There is one in there, filtering the air--more or less--but it is time to replace it. I've already tried the one from the dealer, and it is too large by about half an inch. Any ideas? Anyone run across this, or have a source for the alternate size filter? K&N perhaps? So, right. Huge site, sort of intimidating, but fun. I think I'll enjoy it here... Attached Images __________________ Barbara Millie the R80/7 Jaelith the '77 XS/chair Britney the '67 B44 BSA Pip the '78 T140v and some misc......

03-29-2011, 01:09 PM	#362
mark1305 Old Enough To Know Better Joined: Feb 2005 Location: Merritt Island, FL Oddometer: 5,527	Welcome aboard! Now fill out some more of your profile to give folks and idea of where you are in the world. The air cleaner should be the same for all those years. My 83 R80 ST uses the same part number, but I have a K&N that came with the bike. The OEM part # is 13721337080. The K&N matches the outside dimensions of the airbox, give or take a few mm oversize, and lid so that it gets squeezed between them to make the seal around its rubber "frame". I'm guessing the OEM filter should be the same. Be aware that some folks that do routine lube oil analysis on their airheads claim that K&N filters result in higher silica numbers in the oil assay. That usually means more sand/dust is getting through compared to OEM type filters. I don't know that first hand, but have read it more than once. __________________ Mark J Merritt Island, FL When a person asks you for advice, they don't want advice. They want corroboration.

03-29-2011, 03:11 PM	#365
Barbara Adventurer Joined: Mar 2011 Location: Skagit Co., WA Oddometer: 16	Yep, snowflakes and tubeless front and rear---my first cast wheels and (obviously) first tubeless tires on a bike, ever. Her name, btw, is Millie, because (compared to the rest of the stable) she is "Thoroughly Modern".....oh, and if anyone wants to trade a kilometer speedo for a mile speedo, I'd be up for that. Her speedo broke, and the only one I could find was from a very nice guy in British Columbia, and it is in kilometers. OK---off to fill in profile...... __________________ Barbara Millie the R80/7 Jaelith the '77 XS/chair Britney the '67 B44 BSA Pip the '78 T140v and some misc......

03-29-2011, 07:44 PM	#367
Beemerboff Beastly Adventurer Joined: May 2005 Oddometer: 2,066	The aif fliter element will go on upside down and or back to front, but it looks the wrong size when it is----------. Forget the old wives tales on K & N s - folks like Honda were asking $130- for OEM filters 10 years ago , so they didnt want anyone buying a everlasting $80- filter. With a properly prepared K & N and a verifiable full lifecycle test the K & N works better than stock, over the life of a stock filter. Test which show different results usually concentrate on the first couple of hours of the filters life, where a new paper filter will outperform a newly oiled K & N, but the paper filter gets worse from day one while the the K&N gets better. I switched to a home made a Uni on my G/Ss here in dusty Oz because any filter blocks PDQ, and with my Uni system I can pack a spare foam element which is always clean and ready to go in, if I run into a lot of dust. __________________ Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST

03-31-2011, 12:18 PM	#368
Speedo66 Beastly Adventurer Joined: Jan 2010 Location: SW Fairfield Co, CT Oddometer: 4,663	I have an original 1971 tool kit, tool roll case, and owners manual for sale, link here: http://www.advrider.com/forums/showt...6#post15553716 __________________ '01 Kawasaki W650 '05 Yamaha XT225

04-15-2011, 07:08 PM	#369
Tripletreat Gnarly Adventurer Joined: Dec 2008 Location: Boise, Idaho Oddometer: 409	If you gotta have a K&N on your old Boxer, I'll be very glad to sell you mine! __________________ .................................................. ................ For all we know, this may all be just a dream; we come, we go like the ripples in a stream.

04-17-2011, 05:20 AM	#370
R11STEW ADVrider Wanna-be Joined: Sep 2006 Location: Hot South Oddometer: 186	Head to Carb Hose/Connector This may be 205, but I went to NAPA and bought bulk flat hose for my '77 R100RS (40mm Carbs) pretty cheap. This is a good alternative to OEM and very inexpensive. Cut to size for a perfect fit: __________________ Scrappy

04-17-2011, 07:45 AM	#371
JMforPres Gnarly Adventurer Joined: Apr 2008 Location: Charlotte, NC Oddometer: 164	Head to Carb Hose/Connector That is a good tip. Cheaper and more readily available Jon __________________ 93 R100GS 91 K75S 77 R100S 77 R100RS

04-17-2011, 09:00 AM	#372
wirewrkr the thread-killer Joined: May 2008 Location: HIGH desert Oddometer: 4,297	Not Good. I just checked at Napaonline, that hose lists at 16.11 per foot. You have to buy a foot. the factory inlet rubbers are only $7.28 each for either 32 or 40mm ALSO and most important, it is NOT fuel hose, it is radiator hose, probably will not last, will turn to mush after awhile and get sucked into the engine as it melts a way. ESPECIALLY with the alcohol impregnated fuel we are forced to buy these days. Can't recommend this one. __________________ www.wirewerkes.com KILL YOUR TELEVISION !!!! wirewrkr screwed with this post 04-17-2011 at 10:21 AM

04-17-2011, 04:38 PM	#373
Beemerboff Beastly Adventurer Joined: May 2005 Oddometer: 2,066	If you want good cheap hose some of the stuff on Jap cars between the filler and the fuel tank fits , and it is designed to last the life if the car. Remove it yoursef and a lifetime supply will cost a couple of bucks. Or less. I was sent a couple of pieces of unmarked hose when I ordered the proper bits for my /7 a good few years back. Failure showed up PDQ as one carb fell of the stub when I was running, luckily at slow speed. And luckily in sight of a Jap wrecker. Didnt seem to harm the valve seats any - they are still the origonals and have gone 150,000 km since- might even have improved them! __________________ Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST

04-23-2011, 01:22 AM	#374
ride57 n00b Joined: Apr 2011 Oddometer: 2	While trying to see if starter brushes are available at Stockers starters (I had got a rebuild kit for the Ducati) I didn't see any rebuild kits for BMW. But this is what they sell. http://www.stockers.com/index.php?cd...BMW+Motorcycle

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