Author Topic: Hole on bottom of Crankcase?  (Read 1353 times)

0 Members and 1 Guest are viewing this topic.

Offline mconner

  • Trade Count: (0)
  • Registered Bridgestone Member
  • **
  • Posts: 5
Hole on bottom of Crankcase?
« on: August 04, 2015, 10:22:32 AM »
Hi all,

I went to gas up my Tora this weekend to make sure it still ran and noticed the gas pouring out the bottom of the crankcase cover. After quickly shutting of the fuel and sticking a bucket underneath, noticed a hole about the size of a nickle. This isn't the drain plug -- the drain plug is still there, but is another hole a little farther up (toward the handlebars). Am trying to attach a picture.

Have never noticed this before and have looked through the parts diagrams, but can't identify what I need here. Any help would certainly be appreciated.

Thanks

Offline Chibi62

  • Trade Count: (0)
  • Full Bridgestone Member
  • ***
  • Posts: 36
Re: Hole on bottom of Crankcase?
« Reply #1 on: August 04, 2015, 07:09:38 PM »
No worries. It's a drain/vent for the carburetor, and is a factory design. If you pull the side cover plate off you will see how it's designed.

As for raw fuel pouring from this location. It simply appears that the carb float is stuck open, or a fuel supply hose is cracked and leaky. Try rocking the bike side to side. This might free up the float. Otherwise pulling off the side cover may prove to be a wise move to pinpoint the problem.

Kevin

Offline mconner

  • Trade Count: (0)
  • Registered Bridgestone Member
  • **
  • Posts: 5
Re: Hole on bottom of Crankcase?
« Reply #2 on: August 05, 2015, 08:48:01 AM »
Thanks Kevin. Is one of those things I have looked at a million times, but all of a sudden (when something was going wrong), it looked foreign. Tried the rocking, still was pouring out.

Will roll up the sleeves and take a look inside the thing this weekend.

-Mark

 


Gallery


Views:26
Comments (1)
By: killerterp

Views:32
Comments (0)
By: rwgibbon

Views:60
Comments (1)
By: fahrkle

Views:87
Comments (1)
By: Geoff S

Classifieds

1968 Restored BRIDGESTONE 175 Dual Twin

Price: $2900.00
Date: 07/11/2018 10:42 am
Time Left: 85d 9h 58m
UK registered Bridgestone 350GTR Original untouched bike

Price: £5900.00
Date: 07/07/2018 03:53 pm
Time Left: 81d 15h 8m
Bridgestone MK2 200ss
Price: £500.00
Date: 07/03/2018 02:29 pm
Time Left: 77d 13h 44m
BS Parts Cabinet & Mics Parts

Price: $0.00
Date: 06/21/2018 07:19 pm
Time Left: 65d 18h 34m

Recent Downloads added

Bridgestone Motorcycles

Rating: (None)
Filesize: 3561.91KB
Date: June 05, 2018, 04:42:13 PM
Bridgestone Magazine Article

Rating: (None)
Filesize: 3561.91KB
Date: June 05, 2018, 04:38:08 PM
How to build a 149 mph 350GTR....
Rating: (None)
Filesize: 7154.56KB
Date: April 18, 2017, 08:25:38 AM
Bert Lilley's BS 350 Racer Modifications
Rating: (None)
Filesize: 0KB
Date: January 09, 2017, 04:27:24 PM

Powered by EzPortal