Author Topic: B-7 Air filter  (Read 4752 times)

0 Members and 1 Guest are viewing this topic.

Offline Irishrower

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 34
B-7 Air filter
« on: April 27, 2011, 06:05:36 PM »
Does anyone know where I can find an air filter for my 7?  Anyone have a good source for a generic scooter filter and housing until I can find the real thing?

ztnoo

  • Guest
  • Trade Count: (0)
Re: B-7 Air filter
« Reply #1 on: April 27, 2011, 06:15:45 PM »
Have you inquired of Richard?

Offline Irishrower

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 34
Re: B-7 Air filter
« Reply #2 on: April 27, 2011, 06:36:19 PM »
Yea I'm pretty sure I asked and he didn't.

Offline Sidi

  • Trade Count: (0)
  • Registered Bridgestone Member
  • **
  • Posts: 19
Re: B-7 Air filter
« Reply #3 on: April 27, 2011, 10:26:52 PM »
I once used a Craftsman lawnmower air filter. The replaceable filter was housed inside a black plastic, clamp-on round cage, that fit nicely into the frame cavity.
BS-7D,  BS 175DT

Offline Irishrower

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 34
Re: B-7 Air filter
« Reply #4 on: April 28, 2011, 07:31:35 PM »
FYI I found a good replacement:

http://store.knfilters.com/search/product.aspx?Prod=RC-2540

The flange size is just over 1" and looks like it will be small enough to fit. Autozone had to special order it.

Offline Irishrower

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 34
Re: B-7 Air filter
« Reply #5 on: May 11, 2011, 10:47:04 PM »
Ok here's the latest:

I installed the K&N and it barely runs.  Lots of smoke, no power.  I tried turning the adjusting screw on the carb but it doesn't help.  Any ideas?

reed

  • Guest
  • Trade Count: (0)
Re: B-7 Air filter
« Reply #6 on: May 11, 2011, 11:01:55 PM »
Irishrower
How does it run without the air filter!
Thanks.
Steve.

Offline Irishrower

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 34
Re: B-7 Air filter
« Reply #7 on: May 12, 2011, 08:24:56 PM »
Very well.  Idles fine, good acceleration and torque, no smoke.  Ive gotten it up to about 35 on a flat road.  When I put the filter on I can barely get it to idle without giving it gas, and even then it sputters.

reed

  • Guest
  • Trade Count: (0)
Re: B-7 Air filter
« Reply #8 on: May 12, 2011, 09:42:16 PM »
Irishrower
Have you been into the carb, i would like to know the jet sizes.
And the float height setting etc.
Thanks.
Steve.

Offline OldSwartout

  • Global Moderator
  • Trade Count: (0)
  • *******
  • Posts: 1314
Re: B-7 Air filter
« Reply #9 on: May 13, 2011, 08:44:21 AM »
Ok here's the latest:

I installed the K&N and it barely runs.  Lots of smoke, no power.  I tried turning the adjusting screw on the carb but it doesn't help.  Any ideas?
Some possiblities:
Float level too high.  Just a bit of extra restriction with a freshly oiled K&N may be causing it to pull too much fuel.

Way too much oil on the filter.  Rinse it out with gas, then mix some oil with gas, about 60% gas/40% oil, wet the filter with it, then let it dry for a few hours to get rid of the gas.

I've also heard of K&Ns causing a problem on some bikes - the blowback of air/fuel through the carburetor catches in the filter, then gets sucked back into carb on next stroke, but that's usually on race bikes with pretty wild intake timing.
Karl Swartout
Mooresville, IN
BS175 Roadracer. BS200RS, BS350 GTR

 


Gallery


Views:221
Comments (0)
By: Jon West

Views:1363
Comments (0)
By: rwgibbon

Views:1693
Comments (0)
By: Perry L Anderson

Views:1757
Comments (0)
By: Perry L Anderson

Classifieds

Gto
Date: 03/02/2024 06:49 am
Time Left:
Looking for a BS90 used or new luggage Carrier assembly

Date: 02/01/2024 04:19 pm
Time Left:
Gto
Date: 10/19/2023 01:08 pm
Time Left:
Urgent - l/end roller bearing & piston pins needed
Date: 10/08/2023 03:25 am
Time Left:

Recent Downloads added

Chibi, Chibi Deluxe, Tora Service Manual
Rating: (None)
Filesize: 20383.27KB
Date: May 01, 2023, 08:35:39 PM
Chibi_Tora_Parts_Manual
Rating: (None)
Filesize: 14301.44KB
Date: May 01, 2023, 08:25:53 PM
BS200 Mk II RS & MK II SS Exclusive Parts
Rating: (None)
Filesize: 358.29KB
Date: March 07, 2021, 07:30:10 PM
1970 sales brochure
Rating: *****
Filesize: 6753.33KB
Date: July 16, 2020, 10:01:18 PM

Powered by EzPortal