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-   -   trouble syncing carbs (https://cbrforum.com/forum/general-tech-9/trouble-syncing-carbs-111380/)

Michaud85 05-29-2010 09:52 AM

trouble syncing carbs
 
I tried syncing my carbs last Night at normal operating temp but I simply could not get all of them to equal eachother I can easily sync one carb to another and sometimes I can get 3 synced but I can't get all four of them equal.

Does anyone have any advice or is it just guess and test till they are equal

It keeps taking me so long to do it so I have to shut the bike off and let it cool down

IDoDirt 05-29-2010 10:30 AM

When synching your carbs, you do it in pairs. You work on carb 1 and 2, turning the screw between them getting them balanced. Then adjust the screw between 3 and 4 getting those 2 balanced to each other. Then you adjust the screw between carbs 2 and 3, which brings the left side (1 and 2) into balance with the right side (3 and 4).

justasquid 05-29-2010 03:06 PM

One thing to consider is placing a box fan in front of the bike while your doing the carbs. You should have airflow going through the radiator so you don't have the heat issues. It will simulate you coasting about 10mph, and the bike should stay cool. the fan may kick on, but at least with the box fan, it can cool the bike back off and keep it in the right temperature range.


DId you get the bike to not flood?

Michaud85 05-29-2010 03:56 PM

thanks squid and dirt i finally got them sync'd

IDoDirt 05-29-2010 09:04 PM


Originally Posted by Michaud85 (Post 927320)
thanks squid and dirt i finally got them sync'd

It's all good...

antatious 06-29-2010 01:35 AM


Originally Posted by IDoDirt (Post 927217)
When synching your carbs, you do it in pairs. You work on carb 1 and 2, turning the screw between them getting them balanced. Then adjust the screw between 3 and 4 getting those 2 balanced to each other. Then you adjust the screw between carbs 2 and 3, which brings the left side (1 and 2) into balance with the right side (3 and 4).

I just thought I would bump this. I looked for a little while for this exact information. I finally got it here. I am definitely new to carb synccing. I had no idea how to do 2 at a time and in what order.

Thankyou.

IDoDirt 07-03-2010 11:01 AM

You need to get a Carb synchronizing tool like the one here. All 4 carbs are hooked up. You adjust 1 and 2 to each other so they're balanced, then 3 and 4 to each other, then balance the left and right side to each other. This was taken several years ago, but shows the effect you're looking for.

http://www.youtube.com/watch?v=Hmw-1XYS3UY


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