MS181 Exhaust Cover

[Steven P]

Good evening and sorry if this has been asked before, I didn't see anything though

 

My MS181 is loosing a bit of power, the internet says to check the spark arrester, but on this machine the bolts for the exhaust are a weird 3 slot head on the circumference arrangement if that makes sense. So the question is... what do I need to open it up? new tool or is there a trick with a different tool?

 

Thanks

[Ratman]

Prize them out/off, then you can get to the bolt heads underneath/behind them.

[peatff]

That sounds like the bolt covers, they prise off with a thin screwdriver and there's a Torx bolt underneath.

[Steven P]

Perfect, I'll try that shortly. Thanks

[Steven P]

and as an update for reference, I took the exhaust off, as you both said, popped off the cover with a crew driver (had to use the shape of the exhaust to get a bit of leverage). Hex bolt the same size as all the others, no problem.

 

Turns out there is no spark arrester in there (UK version anyway). Just to wait for a new air filter to be delivered, realised I haven't changed it for a couple of years now.

[peatff]

While it's off check there's no scoring, bad scratches on the piston by pulling the rope till it comes into view in the exhaust port.

[bmp01]

On 18/04/2021 at 19:43, Steven P said:

and as an update for reference, I took the exhaust off, as you both said, popped off the cover with a crew driver (had to use the shape of the exhaust to get a bit of leverage). Hex bolt the same size as all the others, no problem.

 

 

T27 Torx bolt head, might get a hex driver to work but it aint right.

[Steven P]

9 hours ago, bmp01 said:

T27 Torx bolt head, might get a hex driver to work but it aint right.

My bad, sorry, I meant torx