Gaz_Lurcherlad 382 Posted February 8, 2020 Report Share Posted February 8, 2020 To say I’m a mechanic can I f**k get my Stihl saw to tick over , it’s a 017 12inch I’ve rebuilt carb checked compression messed about with jetting screw and idle but will run just not tick over anyone have a clue what it is Im tearing my hair out Quote Link to post Share on other sites
socks 32,253 Posted February 8, 2020 Report Share Posted February 8, 2020 I’ve had years of experience with chainsaws mate specialising in stihls and if you’ve done all that you’ve mentioned I reckon it’s fukced 1 4 Quote Link to post Share on other sites
Greyman 25,138 Posted February 8, 2020 Report Share Posted February 8, 2020 16 minutes ago, Gaz_Lurcherlad said: To say I’m a mechanic can I f**k get my Stihl saw to tick over , it’s a 017 12inch I’ve rebuilt carb checked compression messed about with jetting screw and idle but will run just not tick over anyone have a clue what it is Im tearing my hair out Might sound stupid but has it got clean fresh fuel in it as 2 stroke goes a bit shot if left in the tank over winter, also worth changing the plug every now and again, and if it’s not that check out the bit that makes the spark as a bit of rust on there can cause problems 2 Quote Link to post Share on other sites
jok 3,035 Posted February 8, 2020 Report Share Posted February 8, 2020 Well, if I could hazard a guess, go for cleaning air filters. Time after time they caused me problems. JMO . Jok. 1 Quote Link to post Share on other sites
Gaz_Lurcherlad 382 Posted February 8, 2020 Author Report Share Posted February 8, 2020 Bore looks good plenty of compression exhaust suppressors not blocked carbs been done and new plug and cleaned filter should of bought new one lol Quote Link to post Share on other sites
Gaz_Lurcherlad 382 Posted February 8, 2020 Author Report Share Posted February 8, 2020 And cleaned tank and fuel filter out Quote Link to post Share on other sites
Chid 6,372 Posted February 8, 2020 Report Share Posted February 8, 2020 Are you Mixing your 2 stroke to the right mix ? Sounds daft but I had a chain saw that would run at 50:1 but not at 40:1 which everything else here ran on 1 Quote Link to post Share on other sites
king 11,664 Posted February 8, 2020 Report Share Posted February 8, 2020 2 hours ago, Gaz_Lurcherlad said: To say I’m a mechanic can I f**k get my Stihl saw to tick over , it’s a 017 12inch I’ve rebuilt carb checked compression messed about with jetting screw and idle but will run just not tick over anyone have a clue what it is Im tearing my hair out Some info here gaz. https://forestryforum.com/board/index.php?topic=88028.0 Quote Link to post Share on other sites
Lenmcharristar 9,169 Posted February 8, 2020 Report Share Posted February 8, 2020 Check the kill switch isn’t wearing out or cutting in due to vibration Quote Link to post Share on other sites
Waz 4,201 Posted February 8, 2020 Report Share Posted February 8, 2020 ebay Quote Link to post Share on other sites
Meece 1,957 Posted February 9, 2020 Report Share Posted February 9, 2020 (edited) For several years the fuel companies have been changing the fuel contents. More and more ethanol has been used. The mix oil has needed to be changed to compliment this. 2T oil is just sold and there are different specs. So many places sell B spec oil and this is the red oils. Even Stihl. It is very important to use the green stihl or blue Husqvarna oil. These are D spec which are low ash. You appear to have considered everything else apart from slightly worm crank seals. Which can cause erratic slow speed idle. The most likely cause is a blocked idle jet and although you have rebuilt it this don't seem to change problems like this. The cheapest route to bypass this is to go and buy a new cheap Chinese carb from eBay. Everything comes out the Chinese factories even the new stihl stuff. The golden rule is to use fresh fuel, low ash D spec oil, only make enough fuel that you are going to use and if the machine is going to be bot used for mlre than a few days is to tip out the tank, start it up and run it dry. If the crap ain't in there it can't block the fine carb jets. Edited February 9, 2020 by Meece Quote Link to post Share on other sites
Gaz_Lurcherlad 382 Posted February 9, 2020 Author Report Share Posted February 9, 2020 Well lads don’t know how but I’ve fixed it just stripped carb again and seems to have sorted it lol probably put something in wrong Quote Link to post Share on other sites
Greyman 25,138 Posted February 9, 2020 Report Share Posted February 9, 2020 Should be plenty of fallen trees around to test it on 1 Quote Link to post Share on other sites
Meece 1,957 Posted February 9, 2020 Report Share Posted February 9, 2020 1 hour ago, Gaz_Lurcherlad said: Well lads don’t know how but I’ve fixed it just stripped carb again and seems to have sorted it lol probably put something in wrong Naah. the parts in there that anyone can remove can only go back in one way round You cant reassemble the parts Incorrectly. You may have moved a bit of crap in the idle system. The jets are so small that you wouldn't notice. Still the saw is running so your up and running. 1 Quote Link to post Share on other sites
Ted Newgent 4,896 Posted February 9, 2020 Report Share Posted February 9, 2020 Dont use bog standard fuel go buy shell premium petrol. Small engines run a hell of lot better on premium 2 Quote Link to post Share on other sites
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