spudulike
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Everything posted by spudulike
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The saw is wearing a new Meteor 372 top end, the carb is the same as the 372 so no issues there. The crank seal under the clutch has been replaced along with a bit of tidying and a couple of helicoils and spare parts but the saw is now airtight, all the checks have been done bar the final tach tune. I would say the issue was a mix of fuel and a slight air leak. Sometimes it is just a mix of a number of slight issues that can take a saw out. The factory limiters were still I place so unlikely to be a carb setting issue but will tach up to around 13KRPM and all should be good now.
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It will work but just not as well. I wouldn't try modding it with this carb. Last time I tried one of these carbs on a 372 I had issues and refitted the Walbro one but never found out if the carb was the route cause. Try it, tune rich and check the plug colour.
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OK, must have been a lack of fuel on acceleration caused by the L screw. Typical compression on a good MS200 is 170psi and on a well worked one is 150psi, anything below 150 isn't good and the maximum I have seen is 210psi on a modified saw.
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You would normally start with one turn out on both the H and L screw, if a saw is bogging at low to mid revs on pickup, sometimes it is just the L screw being a little lean. Be aware that many MS200s still have the carb limit caps fitted and these will stop you changing the H screw by much but that may be a good thing as it should run OK on factory settings. If an 020T carb has been fitted, these often run at settings other than 1&1 as there is only one pick up for fuel to feed both H&L screws meaning if you change the L screw setting, the H screw changes as well so more difficult to dial in. I have never just fitted a ring, worn rings usually mean the piston skirts will have excessive wear or enough wear to warrant a new piston. I have had saws make good compression but have no torque just down to a worn piston. What compression does it make on the first pull?
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What is the compression measurement? If the original rings were shot, I would have replaced the complete piston as a worn one even with good rings can lose compression. Did you hone/roughen the glaze on the bore when the new rings went in? The bogging you are experiencing may just be poor carb adjustment - try putting the H&L on one turn out unless it has an 020T carb where the adjustment can be more varied.
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Yes I remember now, no need to check, that is a good step forward. Do the plug and lets go from there. Can't be too much with the compression that saw has:thumbup:
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OK, did I put a Zama carb on it? I think I did from memory but am not 100%? If it has one then try a new spark plug and then drop it in if no good and will do a pressure check and carb overhaul. Also make sure the filter is still on the end of the fuel line.
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Not a problem, always glad to see my work still out there and working well:thumbup:
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Mmmmm all in the name it would seem.........I should really stop insulting my customers..........there again:sneaky2:
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Hope all is well with you and business is good down there in the West Country.
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Nice to hear from you again, been missing your dulcet tones:lol:
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The oil in the sump lubes the bottom end and valves, your two stroke will just lay in the bore so listen to Barrie:thumbup:
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Nah, our village idiot seems to have similar ideas, very progressive:lol:
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Just depends if you have the rest of your life to fix it or you want to use it:lol:
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The local shops are around six weeks wait, makes my two week and under average seem pretty good!
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Not tried one, sometimes they unscrew but I have spliced them before which works.
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Think I have been losing my hair since fitting it
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I have one big mother pump on the other end, without looking I think it is 750 cubic metres per hour!
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That's it, I am hiding the shame of having a Stihl in the workshop:blushing:
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Yay.....
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The feeling you are smarter than the next bloke:thumbup:
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Been doing a bit of work in the workshop, constructed something I have been meaning to do for quite a while - any guesses as to what it is?
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Run it some more and go from there. It looks normal to a little rich, it will do no harm but you may get a little more if you lean it out slightly and check again.
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It looks about right to me.
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So it is in warranty? Take it back to the dealer! It will be a stripped worm or plugged pump.
