STIHL BR800C

[Dustalex1]

2 hours ago, spudulike said:

The lack of idle could be a number of things. When an engine warms up, typically the compression falls, this may be what is stopping the engine running correctly, especially with what you have done to it.

I have done a fair number of BR600s and KM95/100/130 which are all 4 stroke and most have needed the tappets adjusted as most don't seem to do them. Generally, the engine feels much harder to pull over if they need adjusting and may sort your issues.

Other heat issues - if the coil to flywheel gap is too large, when the coil gets warm, it can stop sparking so worth checking this.

The carb may just need a bit of adjustment or the idle speeding up so it is less likely to stall.

Lastly, the issue may just be a bit of dirt in the carb gauze strainer or a perforated pump diaphragm...I know most of this will probably be outside of your skill set but it is what it is and if your machine was in front of me...I would be checking these things before pulling the cylinder off to check the internals if the above fails.

Thank you 

[manco]

8 hours ago, Dustalex1 said:

Sounds like you need a hobby to me? Instead of spending your time on here honing your edgy comedian act of being a prat and then when someone calls you out as such going “ohhh can’t say anything anymore snowflakes etc” 

who said snowflakes? and who said theres an act?

sounds to me like you cant handle being laughed at for busting a 600 quid machine.

you wanna lighten up pal.

[Stihl123]

17 hours ago, Dustalex1 said:

2020 model. Seems to have had an easy life with an old boy who hardly used it, until I got my hands on it! Thanks but I can’t think the recoil would be a problem compared to me putting the wrong fuel in? 

well, i meant to post before on this, as i stupidly made the same mistake years ago!

that was on a 130r, i ran about 5 tanks of straight petrol through it, then it stalled... then the penny dropped 😅🤦‍♂️ 🤦‍♂️ 🤦‍♂️  🤦‍♂️ 🤦‍♂️

 

so, i drained all the fuel out, then kept priming it to get all the fuel out, then put 2 stroke in it, primed for a good minute or 2, and then started it. let it idle for about 2 or 3 mins.

and it's been absolutely perfect, its still the only long reach kombi i have and still runs perfectly to this day, and that was 9 years ago it happened 

[Dustalex1]

2 hours ago, Stihl123 said:

well, i meant to post before on this, as i stupidly made the same mistake years ago!

that was on a 130r, i ran about 5 tanks of straight petrol through it, then it stalled... then the penny dropped 😅🤦‍♂️ 🤦‍♂️ 🤦‍♂️  🤦‍♂️ 🤦‍♂️

 

so, i drained all the fuel out, then kept priming it to get all the fuel out, then put 2 stroke in it, primed for a good minute or 2, and then started it. let it idle for about 2 or 3 mins.

and it's been absolutely perfect, its still the only long reach kombi i have and still runs perfectly to this day, and that was 9 years ago it happened 

Good to hear, thanks. As I added in a further post, I can get it up and running on a cold start and use it full power so maybe there’s hope. 

[Dustalex1]

12 hours ago, manco said:

who said snowflakes? and who said theres an act?

sounds to me like you cant handle being laughed at for busting a 600 quid machine.

you wanna lighten up pal.

😴