We need a broken /2

Single & twin cylinder model BMW Airhead specific discussions
Duane Ausherman
Posts: 6008
Joined: Thu Aug 12, 2010 12:39 pm
Location: Galt California
Contact:

Re: We need a broken /2

Post by Duane Ausherman »

Once set up, the timing with the magneto is super simple to keep going. The points last longer than the crankshafts. One only needs to reset the points gap the rest of its life and it will be timed.
Ask the Indians what happens when you don't control immigration.
User avatar
jjwithers
Posts: 431
Joined: Wed Dec 22, 2010 10:19 pm
Location: Ventura, CA
Contact:

Re: We need a broken /2

Post by jjwithers »

Carb is leaking again so it looks like I have a project this weekend. The bike runs so well, i worry about screwing up the balance of the carbs but I can't have gas dripping out of it.
www.beemersandbits.com
'77 R100S - http://www.joshuawithers.com/r100s
'73 /5 Toaster Cafe bike http://www.joshwithers.com/slash5
'67 Bridgestone 175 Hurricane Scrambler
'66 R60/2
'72 BMW 2002
Instagram - jj_withers
Duane Ausherman
Posts: 6008
Joined: Thu Aug 12, 2010 12:39 pm
Location: Galt California
Contact:

Re: We need a broken /2

Post by Duane Ausherman »

Removing the float bowl cover and lapping the needle shouldn't change your adjustments. Besides, it is easier to balance at idle than to lap the needle.
Ask the Indians what happens when you don't control immigration.
User avatar
jjwithers
Posts: 431
Joined: Wed Dec 22, 2010 10:19 pm
Location: Ventura, CA
Contact:

Re: We need a broken /2

Post by jjwithers »

The carb still leaks after removing the float, lapping the needle, etc...
It seems to be coming from that needle but only when the fuel is on, and the bike is on the side stand. I have a feeling that something is worn in there thus a small passage for the gas. Maybe I need a replacement needle? Humm...
www.beemersandbits.com
'77 R100S - http://www.joshuawithers.com/r100s
'73 /5 Toaster Cafe bike http://www.joshwithers.com/slash5
'67 Bridgestone 175 Hurricane Scrambler
'66 R60/2
'72 BMW 2002
Instagram - jj_withers
Major Softie
Posts: 8900
Joined: Tue Aug 03, 2010 1:46 pm

Re: We need a broken /2

Post by Major Softie »

Are you certain that the leak isn't coming from the fuel line? This has bitten people in the past and driven them nuts trying to get the carb to stop leaking when the leak was actually from the line coming into the carb.
MS - out
User avatar
jjwithers
Posts: 431
Joined: Wed Dec 22, 2010 10:19 pm
Location: Ventura, CA
Contact:

Re: We need a broken /2

Post by jjwithers »

Yes, certain it isn't the fuel line. It has something to do with the carb because it only happens while on the sidestand. It is like the gas finds a small opening when leaned over and that opening results in a nice drip drip of gas...
www.beemersandbits.com
'77 R100S - http://www.joshuawithers.com/r100s
'73 /5 Toaster Cafe bike http://www.joshwithers.com/slash5
'67 Bridgestone 175 Hurricane Scrambler
'66 R60/2
'72 BMW 2002
Instagram - jj_withers
Kurt in S.A.
Posts: 1647
Joined: Tue Aug 03, 2010 12:08 pm

Re: We need a broken /2

Post by Kurt in S.A. »

Or, because it's leaned over, the gravity is causing more friction and doesn't let the needle fully seat because some of the bouyant forces are taken out by friction rather than being fully applied to the needle into the seat. ????

"Doctor, it hurts when I do this." "Well, then don't do that."

Kurt in S.A.
Post Reply