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Author Topic: Carburator and others  (Read 133 times)

Croozer

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Carburator and others
« on: November 06, 2017, 09:43:43 AM »

Hi all,

I’m doing a revision of my carburator because i cant ride the bike. I can start the motor but as soon as i put it in gear and try to take off it floods. I think there is something wrong with the flue flowing in to the carburator. I have to check but .... since im going to do the revision, what else do you advise me to change on there? Change the size of the sprinklers? I’m also thinking of changing the front sprocket to a smaller one. And maybe an other air intake and mufler.

Any advise?
« Last Edit: November 06, 2017, 07:54:23 PM by Croozer »
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albertinhouston

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Re: Carburator and others
« Reply #1 on: November 06, 2017, 02:38:58 PM »

I'm in the US so I've never seen a 125, so I'm using the 250 as my example.
I would start with the tank petcock first. This is a common problem for older bikes. The PC becomes stuck and free flowing and then fuel over powers the remainder of the fuel system, which leads to the excess fuel in the carb.
*** a quick way to see if the PC is stuck open is tank the tank off and disconnect all of he hoses. If fuel comes out, then it's not working properly.
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vulcan BR

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Re: Carburator and others
« Reply #2 on: November 07, 2017, 02:26:02 PM »

run a check list

-carburators pistons stuck?
-air filter dirt?
-exhaust damaged/capped?
-carburator bad adjusted?
-carburator dirt?
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albertinhouston

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Re: Carburator and others
« Reply #3 on: November 07, 2017, 02:33:01 PM »

check to the see if the tank vent is clogged.

It it is, gas will build pressure in the tank and there is only one exit for it to go.(fuel lines)
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Croozer

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Re: Carburator and others
« Reply #4 on: November 09, 2017, 08:13:46 PM »

Thx for the reply guys, but the engine is gone. Some things broke inside so decided to leave it for what is is. Took the engine out and sold a rolling chassis for the same price as i bought it.
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