Author Topic: Husqvarna 394  (Read 3186 times)

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Offline jmester

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Re: Husqvarna 394
« Reply #130 on: February 08, 2018, 07:39:31 pm »
I would guess wj-39
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Offline Eccentric

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Re: Husqvarna 394
« Reply #131 on: February 08, 2018, 07:53:53 pm »
Yep.  Most likely a Walbro WJ39.


http://www.barrettsmallengine.com/partslist/husqvarna394-1994-01.PDF


Later 394's have a Walbro WJ70 or WJ71.


395XP's had HS298A or HS300A Tillotsons.
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Offline Cut4fun .

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Re: Husqvarna 394
« Reply #132 on: February 09, 2018, 07:20:29 am »
93 394

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Re: husqvarna 394
« Reply #133 on: February 09, 2018, 11:04:37 am »
Think I found my problem. I used the k10-wj kit to rebuild this carb. I should have used the k13-wj kit. From what I can tell the only difference is the inlet needles in the kit. Plus to double check my self I went to some husky IPL and looked at the wj-39 on the early 394 and it uses the k10 kit with inlet needle part number 503117001. then I looked at the wj-70 EPA carb and it has inlet needle part number 503563401. Walbro lookup online says the wj-70 takes a k10 kit. Walbro Partsmart lookup says to use the k13 kit. I will get the k13 kit and go from there.

Kit I just bought had the long and short needles. Is this the differences? Also has 2 different check valve dia's. 

K13 showed NLA 
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Re: Husqvarna 394
« Reply #134 on: February 09, 2018, 11:06:27 am »
Merged 2 threads. No wonder I was confused where my post went,
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Re: Husqvarna 394
« Reply #135 on: February 09, 2018, 05:21:12 pm »
Just finished tuning a 1998 394 with 36". Just wanting to check and see if I ended up close to specs.

394XP   94   5.7   56   38   7.1      17.4      3/4   1 1/2     2,500   12,500

395XP   93.6   5.7   56   38   7.1      17.4      -   -   - 2,500   12,500
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Offline jmester

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Re: Husqvarna 394
« Reply #136 on: February 09, 2018, 08:22:42 pm »
What carb did it end up being. The WJ-70 needs the inlet needle from a K15-WJ. If you look close at the inlet needle they have a different step at the taper. I am talking about the short inlet needle. The only reason I ever found that out is because the 394 I had, came with the WJ-70 and needed the NLA K13 kit. But keep in mind the needle from the k10 kit may have been fine, because I was having ignition module problems.
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Re: Husqvarna 394
« Reply #137 on: February 09, 2018, 09:17:44 pm »
Thanks for info. Havent pulled that one apart yet.
Was busy with other 98 394, 372, 353 and chainsaw today. 

I ordered him oem kit that has 2 needles in it.   Did your 10 come with only 1?
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Re: Husqvarna 394
« Reply #138 on: February 09, 2018, 09:23:36 pm »
@jmester your kit have these 2 or just 1?



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Offline jmester

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Re: Husqvarna 394
« Reply #139 on: February 09, 2018, 11:19:40 pm »
So a k10 and a k15 kit both come with a long and short inlet needle. The WJ70 and WJ71 use the smaller needle. If you look close at the small needle as mentioned above there is a step at the taper of the needle.If you read back in the thread I could not get the saw to make any rpm. I was thinking it was fuel because i had already replaced the ignition module with a new aftermarket one, the carb was at half a turn out on the high It was not even close to 13,000.So I check pop off pressure and lever height and it checked out ok. Then I got to looking at the inlet needle and realized the step on the taper which allows more fuel. So I took the small needle out of the k15 kit that does not have a step and gain a good bit of rpm. But that did not fix the saw. It ended up being the ignition module holding it back. I would use the needle in the kit that you have.

Also I edited my post above as my part number where backwards and fubared. The 82-75-7 is the big needle and the small needle should be 82-82-7. I still can't find a part number for the small needle in the K15 kit.
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