Author Topic: Husqvarna 545  (Read 3036 times)

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Offline Cut4fun .

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Re: Husqvarna 545
« Reply #40 on: July 26, 2014, 05:22:08 pm »
4219 T-WRENCH CHAINSAWS SPARK PLUGS 16MM X 13MM HUSQVARNA   found it bought in march 2013. 
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Offline SawTroll

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Re: Husqvarna 545
« Reply #42 on: July 27, 2014, 11:36:37 am »
Owner's manuals that come with the saws state 3.4 and 3.8 HP for the "new kids". Porting is different, but I suspect it has to do with the port covers as on the 365/372 XT's. (Not sure cause I haven't looked).

The saws share the same piston, carb, AT module and software program. Only the coils are different. Revboost is obviously one item, but there may be more to it.

According to a recent post on the AS by Randy (Mastermind) the top ends are exactly the same, despite the part numbers are different?   ???

Offline 660magnum

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Re: Husqvarna 545
« Reply #43 on: July 27, 2014, 04:04:17 pm »
That ignition coil for the 550XP costs $61

Don't forget the full circle crank adapter as a difference too.
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Offline SawTroll

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Re: Husqvarna 545
« Reply #44 on: July 27, 2014, 05:04:18 pm »
That ignition coil for the 550XP costs $61

Don't forget the full circle crank adapter as a difference too.

Of course, but that isn't what the confusion is about - it is about the cylinder, or rather the transfer covers.

Offline 660magnum

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Re: Husqvarna 545
« Reply #45 on: July 27, 2014, 05:40:51 pm »
I have both saws and early on took the covers off and compared numbers. The casting number on the transfers are the same
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Offline SawTroll

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Re: Husqvarna 545
« Reply #46 on: July 27, 2014, 06:15:26 pm »
I have both saws and early on took the covers off and compared numbers. The casting number on the transfers are the same

Looks like the different part numbers on the complete assamblys is a deception then, as all the other part numbers are the same?

That brings us back to the coils and the crank stuffers being the only real differences - and maybe the software? Does that really make sense?  ???

Offline 660magnum

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Re: Husqvarna 545
« Reply #47 on: July 27, 2014, 07:52:59 pm »
Yes for they are both very nice chainsaws.

I forget now the exact number (545) but the 545 goes into coil limitation at 13500 and the 550XP at 14000
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Offline SawTroll

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Re: Husqvarna 545
« Reply #48 on: July 27, 2014, 08:40:25 pm »
Of course it really is about how they chose to make the power output lower on the non-xp version, not at all about making the output of the xp as high as possible - as usual.

It is a bit odd that they did it in a different way on the 50cc saws than they did on the very similar 60cc ones though - and that the part numbers are different on the same cylinder/transfer covers.

 

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