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Message started by doc5446 on 04/19/10 at 08:45:08

Title: Carb question...
Post by doc5446 on 04/19/10 at 08:45:08

I bought a honda cb360(cafe project). Both carbs are missing the return springs. The only way to buy these are to purchase diaphragm also...$100 each. I'm looking at McMaster/Carr right now at springs. I kinda know what size I need but I have no idea about wire size and load/rate range.Carb is a KEI HIN 34mm.I'm not wanting to spend much on this bike.
http://c4.ac-images.myspacecdn.com/images02/130/l_404d5e42b96b4594b5a361237a26a333.jpg
http://c1.ac-images.myspacecdn.com/images02/148/l_850e80a40bae4fb8b0706fd90d26fbc4.jpg
http://www.mcmaster.com/#compression-and-die-springs/=6q9fsj

Title: Re: Carb question...
Post by Serowbot on 04/19/10 at 09:24:47

I think you are just gonna' have to take a shot at it...
How about these?...
http://cgi.ebay.com/ebaymotors/82-v45-vf750-vf-750-magna-carb-vacuum-slide-springs_W0QQcmdZViewItemQQhashZitem3354c66200QQitemZ220465619456QQptZMotorcyclesQ5fPartsQ5fAccessories

or this one?...
http://cgi.ebay.com/ebaymotors/Keihin-Throttle-Return-Spring-PJ-34-Carburetor-Carb_W0QQcmdZViewItemQQhashZitem2c53fcab44QQitemZ190387628868QQptZMotorsQ5fATVQ5fPartsQ5fAccessories

Title: Re: Carb question...
Post by LANCER on 04/20/10 at 02:45:52

WHAT IS THE I.D. OF THE SLIDE WHERE THE SPRING GOES IN ?

MEASURE THAT AND THEN SHOP/LOOK/ASK ABOUT SPRINGS THAT WILL FIT.
WHEN YOU SEE SOME ON EBAY, ASK THE SELLER TO MEASURE THE SPRING FOR YOU.

WILL A SAVAGE SPRING FIT IN THERE ?

IF IT GETS TO BE A REAL PROBLEM FINDING THE RIGHT SPRING YOU MAY BE BETTER OFF WITH REPLACEMENT CARBS.
SUDCO MAKES A LOT OF THEM AND YOU CAN CALL THEIR TECH GUYS TO ASK IF THEY HAVE A CARB KIT FOR THAT MODEL BIKE, OR CAN RECOMMEND A CARB SET AND JETTING FOR IT.
THEY ARE GOOD FOLKS AND VERY HELPFUL

Title: Re: Carb question...
Post by einheit13 on 04/20/10 at 06:03:44

Any local indie shop and maybe the dealer should be able to help you. The local import dealer here has the PDF files that gives part nubers on carb parts. It should use the same springs as a CB500, 750, or Yama XS650 and XJ650. I had a CB360 and it has the same carbs as my XJ. The only differences are the mounts to the engine.

Title: Re: Carb question...
Post by doc5446 on 04/20/10 at 06:51:27

Thanx fellas...I got the dimensions and found one that seems to match up. Its a company that does nothing but springs of all shapes and sizes. Couldn't get a price on the website so I called them in person. The receptionist was very sweet and explained the the springs were $2.50 each but to place an order, there would be a $40 min. I explained my situation and she said that she could mail me the springs as a "free sample". So I'm gonna wait and see what she sends me. 8-)

PS The wire size on the spring is .025", does this sound about right?