Karlitos

Hey Guys, just a small update - eventually the new flapper valve arrived and I swapped it for the old one. This has fixed the problem and it doesn't leak at all now. It seems that even if the valve looks visually ok, it can deteriorate to the extent that it doesn't function properly any more.

Yes, if the mounting is similar to the 660, then it seems that the new style vent won't fit - it has a different mount on the tank itself. I've ordered new flapper valve for mine so hopefully that sorts it?

And just to clarify - in my original pictures, I had removed the filter, connector and tank vent so that it was clear what items I was referring to. (items 4,5 and 6 in the parts diagram you loaded on) Thanks

Thanks for that - I had wondered the same - thankfully I also have a newer model 660 so I was able to compare the two. Unfortunately it looks like they are not 'swappable' due to the older model having a different mount for the breather valve. (see pic attached) Sometimes rubber components like that can look ok but not work properly - I need to place an order anyway, so I'll add on a couple of them and see if it fixes it. I'll let you know if that sorts it.?

Hi all, One of my MS660s is an older model and has the older 'flapper' style tank breather valve. It appears to be intact but any time the saw is tilted with the pull start side facing down, quite a bit of fuel is leaking from the breather.... is this a common problem? Do the flapper valves stop working after a bit even if they are still in one piece? I've attached a couple of pics fyi

Thanks, I think I will try JB weld first and if that doesn't work I will look at other alternatives like possibly soldering/welding it, altho I imagine this will be quite tricky due to the wall being fairly thin and the metal quite soft in comparison to other metals.

Evening all, I've had a quick look but can't find any answers to my question on the forum - I have a 461 with a cracked crankcase (see pic) It isn't anything too major but it is over the oil tank and leaks a bit of oil - any suggestions as to a repair solution rather than spending £160 on a replacement crankcase? I've come across a product called JB weld but not sure if anyone has any experience with this? I'd appreciate any thoughts and suggestions, I'm sure spud will know if it's worth a try. Thanks

Thanks sawchip, will have a look at that

Thanks spud? Defo isn't either of the first two points but I'll try a darker room?.... just puzzled me cus both saws run yet no visible spark when testing.... but like you say the room may have been too bright. Will luk?

Does anyone have a suggestion as to why I can't see a spark on my stihl 200t and 201t chainsaws when I hold the thread of the spark plug against the engine casing and turn over the engine? I was doing this on my 201t due to just having installed a new ignition coil and was puzzled when I couldn't see a spark - I then went and tried the same test on my 200t which runs fine and I still couldn't see a spark!? Both saws start and run, but I can't ever see a spark using the mentioned method!