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Author Topic: 034 hard cold start  (Read 1689 times)

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Offline simonmeridew

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034 hard cold start
« on: December 25, 2009, 09:52:02 AM »
I have an 034 I bought on eBay a while ago. It starts very hard when cold (room temperature). A bit of ether and it starts first pull.  But will run/cut flawlessly once it's started. Warm it starts OK. I traded carbs from another 034 I have with no improvement. New plug etc did nothing. Took apart and blew out the fuel tank vent. I'm out of ideas. What's up with it? Can someone help?
simonmeridew
Kubota L4400, Farmi 351

Offline Al_Smith

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Re: 034 hard cold start
« Reply #1 on: December 25, 2009, 10:19:49 AM »
You might have a little air leak in it some place .Could be anywhere,base gasket,impulse,oil seal ,carb boot . Doesn't take much .

Offline John Bartley

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Re: 034 hard cold start
« Reply #2 on: December 25, 2009, 10:49:22 AM »
Check the choke linkage to make sure that the choke plate is closing firmly. If there's enough wear or some bending in the linkages, the choke plate will not close completely.

........throw away the ether.........

A much more "motor friendly" starting fluid for chainsaws (or for anything gasoline) is a little squirt bottle with mixed fuel in it.

cheers

John

Kioti DK35HSE w/loader & forks
Champion 25hp band mill, 20' bed
Stihl MS361
Stihl 026

Offline ladylake

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Re: 034 hard cold start
« Reply #3 on: December 26, 2009, 05:04:14 AM »
 Also try opening the low adjuster a little, if it's set on the lean side it will start hard when cold.   Steve
Timberking B20 14000 hours +  Case75xt grapple + forks+8" snow bucket + dirt bucket   770 Oliver   Lots(too many) of chainsaws, Like the Echo saws and the Stihl and Husky     W5  Case loader   1  trailers  Wright sharpener     Suffolk  setter Volvo MCT125c skid loader

Offline simonmeridew

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Re: 034 hard cold start
« Reply #4 on: December 26, 2009, 08:17:01 AM »
I have tried all of these suggestions, and something seems to have worked, (so far), not sure what it was that finally did it. I took the carb completely apart, cleaned up and out all the fine sawdust inside the recesses under the rubber parts and gaskets and made sure they were seating tight, then made sure the carb was tight to the housing with the two hold down nuts, then put a cable tie around the fuel line where it attaches to the carb, thinking there might be an air leak. Then I opened the low screw maybe a quarter turn. Like I said so far it started on the second pull. Thanks all. (By the way, what an odd little carburetor, hard to know exactly what it's doing; not like the carb on my 8N)
simonmeridew
Kubota L4400, Farmi 351

Offline Al_Smith

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Re: 034 hard cold start
« Reply #5 on: December 26, 2009, 09:03:49 AM »
(By the way, what an odd little carburetor, hard to know exactly what it's doing; not like the carb on my 8N)
simonmeridew
:D No,not one in the same my any figment of the imagination .

A diaphragm carb  in reality is a type of mechanical fuel injector . That up draft carb on an 8N Ford  is about the most simple of designs .Of course with a gravity type of fuel transfer the 8N's had problems all of their own . Both the saw carbs plus the 8n's most likely have had utterances of the profane lauded on them from time to time .


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