Stihl MS210 fault and non OEM parts

[roys]

20 hours ago, spudulike said:

So the heat is definitely the issue.....just depends if it is killing compression or spark 

You could close up the plug gap as a test, try 0.25mm, it will make it easier to get a spark.

Not a solution but may help to determine if it is the coil or top end.

Looks like a hot compression test and regapping the coil and plug may give you the info to fix it 

Did the hot compression test.

1st pull 80psi

2nd pull 100psi

3rd 4th 5th and so on 120psi.

Not regapped ignition coil yet, still at business card thickness.

2nd hand Stihl coil ordered and a Chinese carb gasket kit ordered.

Thanks as always gents for input.

[Stubby]

51 minutes ago, roys said:

Did the hot compression test.

1st pull 80psi

2nd pull 100psi

3rd 4th 5th and so on 120psi.

Not regapped ignition coil yet, still at business card thickness.

2nd hand Stihl coil ordered and a Chinese carb gasket kit ordered.

Thanks as always gents for input.

I don't think 120 psi is enough to support combustion .

[spudulike]

80psi is good for the first pull, 120 isn't great but as long as that 80 is correct, your compression shouldn't be the issue as the machine fires on the first pull and this model never makes top compression figures.

Will be interesting to see how the new coil goes.

[roys]

Cheers will let you know how I get on.

[roys]

Update time.

New carb arrived yesterday from China, fitted this afternoon, fired up almost instantly but was a bit smokey on trial cut. Gave the L screw a wee tweak and adjusted back the idle, now running as sweet as a nut, no bogging down, no cutting out, restarting first pull when hot. Jobs a good un and £11 well spent. When the diaphragm kit arrives I will give a old carb a wee service.

Thanks again to all on thread for your suggestions and help.

[Stubby]

3 minutes ago, roys said:

Update time.

New carb arrived yesterday from China, fitted this afternoon, fired up almost instantly but was a bit smokey on trial cut. Gave the L screw a wee tweak and adjusted back the idle, now running as sweet as a nut, no bogging down, no cutting out, restarting first pull when hot. Jobs a good un and £11 well spent. When the diaphragm kit arrives I will give a old carb a wee service.

Thanks again to all on thread for your suggestions and help.

Glad its sorted and thanks for letting everyone know . ( some don't bother )

[spudulike]

Yes, thanks for the info. Bit baffled as to why a carb should stop working when the engine got hot but as long as it is sorted, all is good.