Yamaha Enticer 250 Carb Switch - Page 2 - Snowmobile World : Your #1 Snowmobile Forum
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post #11 of 15 (permalink) Old 01-04-2010, 09:25 PM
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Any news on this project?? I have a great carb from an enticer 340 + fuel pump I want to throw into my son's ET250 - I was wondering if you had any luck? My problem right now is the hole width for the Carb Flange...they are off by .5 of a cm.....which is 5mm or .2 inches. I can easily make that up by making each hole 2.5mm bigger. Anyhow.....just wonderin.

Last edited by dyslexic; 01-04-2010 at 09:27 PM.
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post #12 of 15 (permalink) Old 01-05-2010, 05:57 PM
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I am currently working on a Keihin carb off a 79 ET 250. I took the carb off because the sled wouldn't start this fall after sitting for the summer. This carb has never given a lick of trouble until now. After taking it apart I thought the diaphrams looked in decent shape. I then checked the needle + seat and the needle was stuck in the seat (it has a rubber tip) I had to help it out with nn pliers. Then I thought great, this must be the problem. I put the carb back in and the sled started right off. The problem is the carb now leaks. I think it is an issue with the needle adjustment/seating.

Parts for these are wicked expensive. IE 50.00$ for the needle alone.

Any thoughts appreciated.

Thx. Cal
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post #13 of 15 (permalink) Old 01-07-2010, 12:59 PM
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ET250 Carb Mod

Took the flange from the ET340 drilled holes wider. Bolted directly on. Not a bad fit.

Just threw the carb on (no heat shield yet - need my snips to chop chop). Carb looks crooked in this pic, but I fixed that too.....

next stop - fuel pump, jetting. Hope the clearance works with that clutch sheave (i think thats what it is).....when that expands I hope its not more than 2 inches or I have more modifications to do.....

Last edited by dyslexic; 01-07-2010 at 01:05 PM.
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post #14 of 15 (permalink) Old 01-08-2010, 11:40 PM
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starts and idles....just have to test run it tomorrow....didnt wanna stink up the garage.
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post #15 of 15 (permalink) Old 11-28-2018, 06:41 PM
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Location: Whitecourt,Alberta
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250 carb

I ordered one of these Chinese carbs for our ET 250 made a adapter. throttle cable and threw the oil injection away. put a primer in the dash.. starts one pull now. been on 4 yrs,no issues.

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