372xp won’t start.

[Craigb]

Crank seal fitted. Despite the lack of an o ring on the sleeve the case holds both pressure and vacuum. 

[Mick Dempsey]

Has it started yet?

[Craigb]

1 minute ago, Mick Dempsey said:

Has it started yet?

Now the bottom end is sorted it shouldn’t be long before the saw is back in one piece. I’ll stick with the coil that came with it but I reckon I need a new one. We shall see. The carb is the next bit for a fettle. The tank and fuel pipe are fine.

[Craigb]

Is this the right carb? L and s say it should be a walbro. Is that c2m or c3m? I can’t decide.

[adw]

As I recall the Zara was the EPA carb from the 365, very difficult to tune due to it being a low emission carb.

[Craigb]

51 minutes ago, adw said:

As I recall the Zara was the EPA carb from the 365, very difficult to tune due to it being a low emission carb.

not ideal but will do for now? 

[spudulike]

3 hours ago, adw said:

As I recall the Zara was the EPA carb from the 365, very difficult to tune due to it being a low emission carb.

I think you mean Zama...Zara is one of the total family😉

I have seen 372s with Zama carbs. It should tune and run with it. Just make sure the gauze strainer is clean by removing and inspecting...they often look clean in place. Make sure the plastic pump diaphragm isn't holed around the diaphragm and the flaps are not perforated. Make sure the gasket is closest to the top named cover.

Check the metering diaphragm is soft, that the gasket is closest to the carb body, get pressure on the fuel pipe union and make sure it holds around 7psi and gives when you push the metering arm. Check the metering arm is level with the carb body and do a pressure check with the carb assembled again.

Simple checks but important.

Reassemble and make sure you get the impulse and fuel line on the correct unions. I would try the H&L screw on around 1.5 turns out just to make sure. 

It will need a retune once running but it should ensure it fires.

Don't give it any more than 8 pulls on full choke as it will flood and NO decomp!!

 

 

[openspaceman]

1 hour ago, spudulike said:

Zara is one of the total family😉

Total what family? 😀

[spudulike]

I think both ADW and I have been done

by spell check.....ROYAL family.

[adw]

Couple of old farts together I guess.