MS250 - What have I done??

[Maico490]

Not totally sure about the 250 but it isn't a good idea to go too rash with the airline on a carb that has check valves.The high speed one can be replaced but if you muck up the low speed ones it's Game Over.

[spudulike]

If you replaced the welch plugs - these should be sealed in with a bit of superglue - if these are leaking of loose..............

[IRONJACK]

Welch plugs? The little metal domes? Didn't touch them, should I?

 

So I might have destroyed it with the airline?

[spudulike]

Yup - little metal domes, refurbed a 262 for a member on here, he rebuilt the carb, running like a train, he fired it up and five minute later it died. Came back to me and the welch plug had blown out - he had just pushed it in:001_rolleyes:

 

I don't usually pull them as there is little point unless you have tried everything else and nothing is working - they can leak so sealing them in is needed if they are removed.

 

Not sure where you put air on but a carb clean is best done with an aerosol of carb cleaner and not hi comp air - 99% of the time this works - the MS200 on my bench at the moment is the exception to this - driving me mad:confused1:

[IRONJACK]

So the moral of the story is...

Red wine and carb rebuilds don't mix!

Thank you Arbtalk! And most of all thank you spudulike! Or should I say the saw whisperer?! I can believe you got the problem without even seeing the saw and just from a brief description. Your unreal mate!

So it was the pumping membrane and spacer the wrong way round all along, no damage done. And the other great news, I found the leak! It was the cracked fuel line after all.

1 more question spud, where do you buy your spares? Locally or on line?

 

Many thanks again to everyone who chipped in!

[spudulike]

In another life I was a God but have since been dealt the mortal blow of being made human but with super human skills in regards to chainsaws - some call me "Chainsaw repair man":laugh1: I sometimes wear my underpants on the outside of my trousers!

 

Thanks for the thanks - glad you got there in the end, alcohol an saw repair doesn't readily mix, some repairs drive you to drink though

 

My spares come from Martin at Kwickchip (ebay), Mister solutions and a few other ebay and online suppliers.

[IRONJACK]

Cool, cheers mate. Thanks again!

[skyhuck]

In another life I was a God but have since been dealt the mortal blow of being made human but with super human skills in regards to chainsaws - some call me "Chainsaw repair man":laugh1: I sometimes wear my underpants on the outside of my trousers!

 

Thanks for the thanks - glad you got there in the end, alcohol an saw repair doesn't readily mix, some repairs drive you to drink though

 

My spares come from Martin at Kwickchip (ebay), Mister solutions and a few other ebay and online suppliers.

 

What like this, but for saws???

 

[ame=http://www.youtube.com/watch?v=5eCdIe0wdvU]YouTube - ‪Monty Python: Bicycle repairman!‬‏[/ame]

[Kev Stephenson]

I sometimes wear my wifes pants on the outside of my trousers!

 

 

Edited for accuracy

[spudulike]

Ooooh - you worked out the link to Monty and his Python:lol:

 

And the wifes underwear won't fit - if you think it will, you can tell er but I know who will come off worse:blushing: