The Airheads Beemer Club is a non-profit club reclaiming the 'Legendary Motorcycles of Germany'

Topic-icon '71 R75/5: Removing and Installing Carbs

  • gpopovich@castlerockwinery.com
  • gpopovich@castlerockwinery.com's Avatar Topic Author
  • Offline
  • Toaster Level
  • Toaster Level
  • 310-874-1587
More
1 month 2 weeks ago - 1 month 2 weeks ago #6154 by gpopovich@castlerockwinery.com
'71 R75/5: Removing and Installing Carbs was created by gpopovich@castlerockwinery.com
Hi Everyone,

New member here! I just ordered new carbs for my 1971 R75/5 the original 64/32/3&4's were driving me ape - could never get them right. Anyway, I'm getting new from Bing 64/32/357 & 8's and I was hoping someone could walk me thru the best way to go about removing the old carbs and installing the new- since I've never done it before. (as far as which clamps, hoses, cables to remove first, etc).

Thank you in advance - I appreciate it and happy to be onboard.

Best regards,

Greg Popovich
This email address is being protected from spambots. You need JavaScript enabled to view it.
Last edit: 1 month 2 weeks ago by Wobbly. Reason: Mods altered title

Please Log in to join the conversation.

More
1 month 2 weeks ago - 1 month 2 weeks ago #6157 by 8053
Replied by 8053 on topic '71 R75/5: Removing and Installing Carbs
When I do that, I loosen every clamp and pull the carburetor straight out sideways from the motor. If you visualize the the curve of the entire assembly from the air filter box to the intake tubes to the carburetor to the heads, you expand, or open up that curve and the parts just fall away from each other. It's difficult to describe, but once you have seen it or done it, it makes perfect sense. Assembly is the reverse of the process. Hold the carb and the intake tube in place in an exaggerated curve and push them inboard together in the same move.

James Strickland, IL. Airmarshal
Last edit: 1 month 2 weeks ago by Wobbly.

Please Log in to join the conversation.

  • gpopovich@castlerockwinery.com
  • gpopovich@castlerockwinery.com's Avatar Topic Author
  • Offline
  • Toaster Level
  • Toaster Level
  • 310-874-1587
More
1 month 2 weeks ago - 1 month 2 weeks ago #6160 by gpopovich@castlerockwinery.com
Replied by gpopovich@castlerockwinery.com on topic '71 R75/5: Removing and Installing Carbs
Thanks, at what point do you remove the cables and all the hoses? Do you pull the carbs free & then do it or before hand?
Last edit: 1 month 2 weeks ago by Wobbly.

Please Log in to join the conversation.

More
1 month 2 weeks ago #6161 by Scott Ambler
Replied by Scott Ambler on topic '71 R75/5: Removing and Installing Carbs
Watch some Youtube videos tonight. You will feel a lot better in the morning! I like the Boxer2Valve Videos and the Brooks Airhead Garage videos. They will give you a great deal of confidence before you wade into the deep water! Enjoy!

Please Log in to join the conversation.

More
1 month 2 weeks ago - 1 month 2 weeks ago #6162 by Wobbly
Replied by Wobbly on topic '71 R75/5: Removing and Installing Carbs
If you are hesitant about carb removal, then you'll love all the adjustments required for re-installing....

• It's critical that you make sure both chokes turn all the way OFF at the carb when the control lever position says they are OFF.

• Then you'll need to set both idle mixture screws to an initial setting of 1-1/2 turn. When the bike is cranked and warmed, you'll need to balance both idle speed screws to 950-1000 RPM by the tach. Then then last part is to use the twist grip to increase the engine speed to about 1800 RPM and balance the carbs using the throttle cable adjustments where the cables attach to the carb bodies.

• These settings will probably all need to be reviewed once the bike is back on the road and able to get fully warmed.

Don't hide 'em, Ride 'em !!
#15150
Last edit: 1 month 2 weeks ago by Wobbly.

Please Log in to join the conversation.

  • gpopovich@castlerockwinery.com
  • gpopovich@castlerockwinery.com's Avatar Topic Author
  • Offline
  • Toaster Level
  • Toaster Level
  • 310-874-1587
More
1 month 2 weeks ago - 1 month 2 weeks ago #6163 by gpopovich@castlerockwinery.com
Replied by gpopovich@castlerockwinery.com on topic '71 R75/5: Removing and Installing Carbs
I've searched high and low -- every video pertaining to carbs -- they already have them removed or they're working while still on bike. If you have any you can point me to I'd appreciate it.
Last edit: 1 month 2 weeks ago by Wobbly.

Please Log in to join the conversation.

Moderators: Wobbly
Time to create page: 1.649 seconds