2 stoke strimmer popping

[TheBrick]

That sounds spot on. Yes the air filter has oil residue.

So it sounds like new engine if you're on about new barrel ?

 

[TheBrick]

I will have to price it up but before hand I will try a compression test on the cylinder thanks.

 

[jo1010]

I often see oily filters on good engines.....do a compression test first and tell us what reading you get.....

 

[Dapph2]

I often see oily filters on good engines.....do a compression test first and tell us what reading you get.....

AND a wet test immediately afterwards , using a tea spoon of clean engine oil .. it would not be unusual to see an increase of 10 PSI if it is worn due to the oil giving a temporary seal to the leakage .

Sometimes you can take the air filter off open the throttle and using a tiny LED torch look into the cylinder . It should look shiny on the cylinder walls not dull grey and the postin a very light grey with no bright streaks running top to bottom on the piston which would indicate metal pick up No scratches or scores on the cylinder skirt . . If you can easily get the exhaust off without wrecking the gasket or breaking studs you'll get an even better picture of the state of things.

 

[tom2207]

AND a wet test immediately afterwards , using a tea spoon of clean engine oil .. it would not be unusual to see an increase of 10 PSI if it is worn due to the oil giving a temporary seal to the leakage .

Sometimes you can take the air filter off open the throttle and using a tiny LED torch look into the cylinder . It should look shiny on the cylinder walls not dull grey and the postin a very light grey with no bright streaks running top to bottom on the piston which would indicate metal pick up No scratches or scores on the cylinder skirt . . If you can easily get the exhaust off without wrecking the gasket or breaking studs you'll get an even better picture of the state of things.

normally you can get a look in the cylinder well enough to judge from the exhaust port

 

[Dapph2]

normally you can get a look in the cylinder well enough to judge from the exhaust port

I've now got a small borescope that runs off my phone .up to 20 x magnification and with an LED illuminator adjacent to the magic eye. Not yet used it in a cylinder but for the £ 8 or so it cost me it's handy to have as I used it elsewhere . Was puling my hair out at first as the offered link would not work for me and my phone .

Fizzy gave it a try on his phone and at first it was the same, but then he downloaded a generic camera app and it worked.