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husky 562 mark 2

Started by ehp, January 12, 2025, 09:17:52 AM

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ehp

I donot use the primer as most times it never works , most times my 562s start in 3 or 4 pulls but I have abit more compression which the saw needs 

DHansen

I was under the impression that the primer system in these saws was not the same as the old school primer.  As its only purpose was to purge air from the carburetor. Not actually pushing any fuel into the throttle bore area of the carburetor.

Big_eddy

That's how it works on the non-Mk ii units for sure. The primer pulls fuel through the lower half of the carb and pushes it back to the tank, essentially priming the fuel pump portion of the carb. 

I pump mine till the bulb "fills." Once the carb is primed, more pumps don't help anything, but Extra pumps won't hurt anything either.  All the pumped fuel is going back to the tank, not into the carb body.  

Spike60

Eddy and Dave have it right. Idea of the primer is to get all the air out of the fuel loop. Which on older saws was done by the carb diaphragm while pulling the rope with the choke on. And once it firms/fills up, it's done its job. Counting really isn't necessary, and as stated, Xtra pulls do no harm. You can't flood the saw by priming too many times as you can by too many pulls with the choke on. Bonus is a primer is a great way to flush old fuel out of a carb without having to remove it.
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Grandpa

The only time I use the primer is when I run the saw out of gas. Even then, being old school, half the time I forget it's there and just pull the rope till it starts.

barbender

All of this sounds wonderful. I'm not picky- no primer, pump 3x, 7x, I just want it to start on 3 pulls or less😊
Too many irons in the fire

ehp

Oh it can be made to start pretty good and run well , stock piston has the compression very much on the line of not being enough , I understand they are trying to have as little heat produced by the motor so lowering the compression is one way, the other thing they did is a very thick cylinder base gaskets so no heat comes from cylinder to crankcase 

John Mc

OK Ed, now you've got me curious. What is the 562 XP compression compared to a similar older saw, such as a 357 XP?
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

ehp

If you take a 562 mark1 and pull the cord on it and compare that to a mark11 , its very easy to feel the difference , the sparkplug is very small on these new saws so testing compression may not be as close like the bigger spark plug saws like a 357, but on my tester I'm at around 135 to 140 pounds on a stock 562 mark 11, most saws donot start running correct till 150 and my ported 562 mark 11 is at 170 pounds and it runs the best , Starts the best , runs nice and crisp , doesnot hunt on the autotune like the stock does , First start up in the morning your stock 562 needs to run on high idle for about 45 seconds or so to set the autotune for the day , my ported takes about 15 seconds to set itself . most guys would never notice or care but I listen to my saw all the time .  Most stock huskies other than some of the newest series of saws  are around 150 pounds of compression on my tester , Now if the new 562 came with a carb that would also help as you could set the saw up I feel better , I put a carb off the 372xt on a 562 before and made intake and boost ports carry fuel , Lot of work building a new intake block but saw ran very good and strong 

ehp

So has anyone had the latest fuel program downloaded into the 562 mark11, I was told it just come out but who knows

customsawyer

I used to run Husky years ago but our dealers started going out of business. We are down to just one Husky dealer, and they are over a hour away and not the shop they used to be since changing hands. Still have and use a 385 I bought back in 2005 at the Sawlex show in Ohio that year.
Two LT70s, Nyle L200 kiln, 4 head Pinheiro planer, 30" double surface Cantek planer, Lucas dedicated slabber, Slabmizer, and enough rolling stock and chainsaws to keep it all running.
www.thecustomsawyer.com

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