Chainsaw Repair
Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: aclarke on June 19, 2015, 09:01:20 pm
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Were any of the 560/562 saws non auto tune?
Adam
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Not to my knowlwdge.
Shep
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Thanks Shep
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EHP talked about doing a reg. carb. on one don't know if he did or not.
Shep
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That was my thought. I'm thinking they're set very lean for EPA reasons. Fattened up the high speed on the ms201t and rpm went UP. I'm thinking they're set lean of peak at factory and Husky may be doing the same?
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Going to need some computer savvy people to start hacking saw computers. I wonder if it could ever become popular with companies that make things like that such as PowerCommander or something?
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Really a small plug in fooled of some sort would be what you would need. Something to show the rpms are higher than they are to riches it up.
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Brother in law had a non auto tune 562 here for awhile. EHP saw sent an auto tune with it. Can't remember which one he kept. Will ask tomorrow.
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Were any of the 560/562 saws non auto tune?
Adam
Just get a Solo 665 then port it and run circles around any Auto Tune made lol
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Hahahaha. I think the strato saws can make good power, unfortunately the auto tune makes it difficult to fatten up the mixture. Doesn't the computer use carb temp as a parameter? Maybe an easy way to fool the computer?
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Yes they do use carb temp as a parameter.
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ya built 1 using the carb from the 365/372 xt , Chris still has that saw . I'm building another for myself for logging . I find all autotune saws donot like the hot humid weather we have here , husky and stihl go pretty rich in this weather so it would be nice to be able to be able to set the jets
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Ed, did you have to do anything with the ignition to make it work?
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the one Chris has I did nothing , You have to watch how much compression you have in the saw , to much compression the crankcase gets hot pretty fast and you loose power, but the 562 likes alot of porting
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Thanks Ed. I've got a 365xt carb. Gonna give it a try
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on that 562 I built a block out of alum. and mounted the carb to the block as I knew the saw was not going to be used as a firewood saw , this 562 is going to have a rubber piece between the carb and cylinder to stop heat getting to the carb as this one is a total worksaw , Also found for a worksaw the 562 likes a big ass hole in the muffler to let as much heat out as possible , yep its loud but it works all day long
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Would UHMW or Delrin make a good intake block?
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I've seen a lot of UHMW used as insulator blocks. Phenolic blocks (Ryertex) has also been used. You can get the Phenolic material with carbon in it (Black) also
Nothing wrong with Delrin. It does better in hot environments than does UHMW.
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I was just wondering if those would be better than aluminum. I know it would be a little easier to make.
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I'm using the rubber boot from the 365/372 xt on this 562 , just made a alum. piece with round part machined on it for the boot to clamp to , its pretty easy to do . I need to send abit and get a non limited coil setup to fit in the place of the stock 562 has , I want at least a 15,000 rpm coil as my other ported 562 that I use in the bush is on the limiter all the time
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Thanks for the ideas guys. Ill Post some pics when I get going on this project
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Cool idea..
Look forward to how this works out.
And what all is involved.
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Hello. Sorry for messing with your topic ,butt i like to ask EHP for some tips about a Redmax 621. I wanna port it and looking for some inspiration[pictures]. I know EHP has been in some of those saws. Thank you.
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Hello. Sorry for messing with your topic ,butt i like to ask EHP for some tips about a Redmax 621. I wanna port it and looking for some inspiration[pictures]. I know EHP has been in some of those saws. Thank you.
You might try posting in the Redmax section, or sending a PM to EHP.