Chris-PA
Where the Wild Things Are
OK - not sure why this would be interesting. it's just an rpm used to set the fuel mixture, and doesn't really mean anything about the rpms the saw runs under load.
543XP's have shipped!
- Thread starter spike60
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M&Rtree
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D
Deleted member 83629
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Well it doesn't really resemble a redmax, im wondering how it will perform in stock configuration
Doug Fir
ArboristSite Operative
It is orange instead of red, but it's otherwise very similar:
Someone posted a partial tear-down on a Japanese site a while back, and the saws looked nearly identical. The Husky had a metal chain catcher (instead of plastic), but that was the only apparent difference. Of course there could be some differences in the porting or other changes that boost the performance of the orange version. Presumably the Husky also has the advantage of better dealer support.
Just to be clear I have nothing against Japanese saws in general or Redmax/Zenoah in particular. They make some very nice small saws!
Doug
D
Deleted member 83629
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I have heard so many great things about them but only the blowers and trimmers the saws are common here with support but they are not popular for some reason.
this should be quite interesting. can't wait for a video.
this should be quite interesting. can't wait for a video.
SawTroll
Information Collector
It is orange instead of red, but it's otherwise very similar:
Someone posted a partial tear-down on a Japanese site a while back, and the saws looked nearly identical. The Husky had a metal chain catcher (instead of plastic), but that was the only apparent difference. Of course there could be some differences in the porting or other changes that boost the performance of the orange version. Presumably the Husky also has the advantage of better dealer support.
.....
Doug
I notised the same a while ago, and wasn't surpriced at all, based on how the 543xp looks.
o8f150
Tree Freak
I would like to have one but I am wonder on what the price is going to be
procarbine2k1
Addicted to ArboristSite
I am looking forward to seeing one in person, will probably be a while before any dealers around me have one in stock.
M&Rtree
Addicted to ArboristSite
Doubt I'll ever see one at a dealer down here if its over $400 dollars. 545 power heads are $389.
Doug Fir
ArboristSite Operative
Here's the GZ4300 in action (together with its smaller sibling, the GZ 3900). It's a strato design, with a semi-split carb.
The Japanese versions come with a Sugihara bar. Nice!
I wonder how long it will take for these bars to pop up on eBay.
Doug
The Japanese versions come with a Sugihara bar. Nice!
I wonder how long it will take for these bars to pop up on eBay.Doug
It'll be priced to undercut the 241 but still fetch an XP price so figure on $499.95 
Chris-PA
Where the Wild Things Are
The offset cylinder is interesting. That will be something to think about for a bit..... Somewhere in the dark corners of my memory I believe I recall that being done somewhere before - the BMC A engine maybe? I'm curious what the tradeoffs are, especially in relation to a 2-stroke.
It's old hat. Just marketing. Look up "desaxe"
MechanicMatt
Cut Split Stack Burn
Bob, I remember running your lil 242. Mean little Saw for sure! Id be surprised to see 16000 rpm, but just the thought of a engine revving up that high makes me smile. I must have a disease, I love engines!
Gee, I wonder where you could have caught that disease from?????
woodchipper95
ArboristSite Guru
Well, that's the question I've been asking from the beginning. The 550 is so sweet, why do we need the 543? And it's not just the 550, cause the 545 has more power than the 543 and costs less. There are times that a 242XP is just the perfect saw to run, and I'm glad I've got a couple. So, if the 543 can keep up with a 242, then there is a market for it. I sharpened up my 242's last night in anticipation of the upcoming grudge match.(My money's on the 242)
But back when the 242 was on the market, the next step up was the 254, and the difference in weight between the 2 was more significant than comparing the 550 and 543. Sort of like the MS241 and MS261 today.
From the 2014 catalog, here are the specs. (I must be feeling Norwegian this morning lol)
543- 2.95hp; 9.9 lbs.
545-3.3hp; 10.8 lbs.
550-3.7lbs; 10.8 lbs.
445- 2.8hp; 11.2 lbs.
Compared to the 445, it looks real good. About the same power, but nice and light. Compared to the 550, or even the 545, I think you give up too much power for a smaller savings in weight.
I think it's going to come down to what are you actually going to use it for. A light saw for climbing, bucket work and other limbing tasks. For that it makes sense. If you want to cut firewood with it, then the 545 is a far better choice.
I'm also anxious to tach this saw, as I've heard conflicting reports about what RPM's they are going to run at. 15,000? 16,000?
I love my 545 it will probably get a little muffler modding in a year or two.
Chris-PA
Where the Wild Things Are
Thanks! I did not realize it had become common. It may offer some unique advantages (?) in a 2-stroke though.
If the offset as shown in the video is correct, it will increase the leverage on the power stroke, but shorten the number of degrees. That would be OK, since the pressure driving the piston has gone before BDC anyway. I'm still trying to visualize what happens to the port timing - I think it effectively makes the timing asymmetrical.
You can also accomplish this by offset wrist pins.
MechanicMatt
Cut Split Stack Burn
So what you guys are saying is a french guy thought up something useful beside fries?? I love engines so all morning I was reading about these, pretty neat.
