Stihl Km85 kombi starting like a pig and cutting out - HELP

[wildflowerbill]

@GardenKit;@harrythecat;@spudulike;@Johny Walker,@wefixit;@c.j

 

thanks guys, not had time to try your suggestions yet, been too darned busy, but need it for tuesday so will have a look at it tomorrow. Will try breather pipe first, that's easy enough and then the carb. I reckon it's fuel related, but I do have a borrowed FS85 here a straight shaft strimmer. Would the coils be compatible to test, and could I just swap the shafts over and run the kombi shaft on the fs85 so I can use my attachments?

[Johny Walker]

@GardenKit;@harrythecat;@spudulike;@Johny Walker,@wefixit;@c.j

 

thanks guys, not had time to try your suggestions yet, been too darned busy, but need it for tuesday so will have a look at it tomorrow. Will try breather pipe first, that's easy enough and then the carb. I reckon it's fuel related, but I do have a borrowed FS85 here a straight shaft strimmer. Would the coils be compatible to test, and could I just swap the shafts over and run the kombi shaft on the fs85 so I can use my attachments?

 

is it pissing fuel out into the air filter

[wildflowerbill]

is it pissing fuel out into the air filter

 

No, what you thinking?

[GardenKit]

I maybe wrong but I guess Mr Walker was also thinking 4 mix, as I was earlier.

 

Some 4 mix have a tank vent in the top of the tank below the carb which is connected by a hose to the air box.

 

These 'one way' vents have a habit of becoming 'two way' and filling the air filter with fuel.

 

Its a simple fix on the affected machines to change the vent.

[wildflowerbill]

@GardenKit;@harrythecat;@spudulike;@Johny Walker,@wefixit;@c.j

 

Apologies for the delay in getting back to you guys, new year has been mental... anyway here's an update; disconnecting breather pipe made it a bit easier to start and got me through a couple of jobs. Then I ordered a new coil (from china £15, instead of £45 from dealer), waited less than a couple of weeks and have just fitted it. 10 minute job and it runs sweet... so HUGE thanks to you guys for helping me out again, spud spot on as usual.

 

Also, after going through several starting ropes and springs while it was being a pig I converted it to electric start. Took off the rope and starter spring assembly out and drilled out a hole in the back cover to fit a 14mm drill socket through to fit the 14mm nut and bobs your uncle. A few squirts on the drill and away she fires. I will just be carrying my cordless drill around with me now and will be swearing a lot less this year. I'm also going to convert my Mculloch mower to electric start too.

 

Chainsaws have been running sweet all winter, again thanks to this forum, and so now there is "nothing on my bench".

 

Cheers

[spudulike]

@GardenKit;@harrythecat;@spudulike;@Johny Walker,@wefixit;@c.j

 

Apologies for the delay in getting back to you guys, new year has been mental... anyway here's an update; disconnecting breather pipe made it a bit easier to start and got me through a couple of jobs. Then I ordered a new coil (from china £15, instead of £45 from dealer), waited less than a couple of weeks and have just fitted it. 10 minute job and it runs sweet... so HUGE thanks to you guys for helping me out again, spud spot on as usual.

 

Also, after going through several starting ropes and springs while it was being a pig I converted it to electric start. Took off the rope and starter spring assembly out and drilled out a hole in the back cover to fit a 14mm drill socket through to fit the 14mm nut and bobs your uncle. A few squirts on the drill and away she fires. I will just be carrying my cordless drill around with me now and will be swearing a lot less this year. I'm also going to convert my Mculloch mower to electric start too.

 

Chainsaws have been running sweet all winter, again thanks to this forum, and so now there is "nothing on my bench".

 

Cheers

 

Great news, thanks for letting us all know, many don't and a bit of thanks when the advice is correct is always good for us all.

 

Electric start:lol: thought I had seen it all!

[wildflowerbill]

Great news, thanks for letting us all know, many don't and a bit of thanks when the advice is correct is always good for us all.

 

Electric start:lol: thought I had seen it all!

 

...no worries Spud, least I could do and it might help someone else in the future, hell that's how I found you lot always being led back here to find the solution

 

And yes LOL the electric start really works. I had seen it done with mowers, and thought why can't it with this. You just need a high speed drill minimum of 18v. No more being knackered on cold mornings before I have even started the job for me

 

I'll not be converting my chainsaws though

 

Oh and Spud if you get a big Husky in (I'm a convert this 254xp has been brilliant, though I am keeping my little stihl 019t forever) then let me know. And what would you recommend for stuff the 254 can't handle, which isn't much, but would like to do some planking at some stage. Or should I just give it you and put a bigger bar on?

[spudulike]

...no worries Spud, least I could do and it might help someone else in the future, hell that's how I found you lot always being led back here to find the solution

 

And yes LOL the electric start really works. I had seen it done with mowers, and thought why can't it with this. You just need a high speed drill minimum of 18v. No more being knackered on cold mornings before I have even started the job for me

 

I'll not be converting my chainsaws though

 

Oh and Spud if you get a big Husky in (I'm a convert this 254xp has been brilliant, though I am keeping my little stihl 019t forever) then let me know. And what would you recommend for stuff the 254 can't handle, which isn't much, but would like to do some planking at some stage. Or should I just give it you and put a bigger bar on?

 

When I first ported a 254, it shocked me whan I fired it up - it sounded so much faster and .....it was.

 

I have a 280CD, no chainbrake but a big ole beast of a saw, not looking for top dollar for it but may be nice for the larger stuff.

 

TBH, the 254 will do up to 2' down both sides!

[wildflowerbill]

When I first ported a 254, it shocked me whan I fired it up - it sounded so much faster and .....it was.

 

I have a 280CD, no chainbrake but a big ole beast of a saw, not looking for top dollar for it but may be nice for the larger stuff.

 

TBH, the 254 will do up to 2' down both sides!

 

I know Spud, I have watched the video of that 254 several times:thumbup1:

 

...oooh, yes a 280cd, that might sit perfect with my vintage collection... pm incoming