Seadog
Save the planet. It's the only one with rum!
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I sort of think this might have one of those. I say that as I have been to local parts place (last one left there used to 4 but only the larger one survived as they sell a lot of machinery to trades) and now \i have coloured pipes its even more confusing..lol
I have a rubber gromment into the tank that has TWO holes so two pipes in my opinion ..........ah ah ah stoped typing now to go and check something.
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.As I thought I was talking through my backside. BUT it still does not want to run so perhaps its that filter inside the carb thats clogged.
Anyway it now primes ok will draw a pic of how I plumbed it. I have some steak from my Grandson number 2 isolated celebration meal let so i am going to knock up some of that with a jacket tata and salad and I will be back.....I will NOT be beaten. lol
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slim_boy_fat
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It's dearer than spun gold at my local servicing place
That's because they have you over a barrel.
pedrobedro
Man at Matalan
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Primer button on chainsaws is after the carb and draws fuel through and back to the tank. Which end of the carb is the pipe ? The brass one looks like the impulse pipe which takes crank case pressure to pump fuel into the carb.
That actually makes more sense to me . But my son works on all sorts of machines from formlifts to stihl saws and and thinks its like seadogs machines.
However it makes sense to me to draw through the carb than shoving it into the carb (but what do I know) (well I used to know a lot more than I do now)
It would also (possibly) explain why it runs on choke after priming but cuts out soon after.
Must go and check it that insect bloke see if he has any diagrams around
cant find him in advanced search by seller chap. could you post an item he is selling if you would be so kind?
Ah a bit of googling and I think I found him. seems like he changed names.
https://www.ebay.co.uk/itm/Fuel-Pet...-MS171-018-MS180-MS181-Chainsaws/310780399637
pedrobedro
Man at Matalan
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I think he goes under the name garden-hire-spares now, I've had a few carb kits and parts off him.
often as cheap to buy a carb as it is a repair kit and a lot less bother , last one I bought was about 12 quid for a carb and 8 quid for a repair kit , I bought 5 fuel hoses with filters and return hoses for 3 pounds , all free delivery , but all took about three weeks from china.
have a look at Steves Small Engine Shop on you tube , he does some great videos on setting up small engines .
have a look at Steves Small Engine Shop on you tube , he does some great videos on setting up small engines .
Finding a repair kit is proving difficult let alone a new carb. lol
its a HUAYI carb. I cant see an image of the one I have.
Localish to me...nice to know thanks...
DAPPH
as dyslexik as I'm daft
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On several chainsaws and discutters I slid a bit of brazing rod inside the tube to get it in /over the hole then gently but firmly slid the tube down into the hole .
It's dearer than spun gold at my local servicing place
The guy charged me £7.80 plus vat for a five inch length at the last local garden machinery place I went to for spares three years ago for a Sthil fuel lift tube . .
Put a bit of cleaned out biro ink refill softish tube inside the non perished part of the tube . With a bit of care it may also fit inside the filter neck too . I've used a get it going bit of earthing sleeving in the past too.
If it is the fuel pipe and the pickup filter has fallen off........ Use a loop of fairly thin nylon cord to pull the pipe towards you then slip on another bit in a simple barrel hitch keeping hold of both ends to capture the tube through the filler hole . gently pull it towards you and use some long nosed pliers to get hold of the tube refit a new filter . Pop it back in and ensure the breather hole in th fuel cap is free of crud & working .
in relation to the above images. the photo here is a clear photo of my carb. I am confused however which of the two nipples would be refferenced small or large.
I am asuming that the small blue filtered line as in the diagrams should be connected to the black plastic nipple as this is at the top of the carb as it sits in the chainsaw or is the fuel inlet the other nipple?
I am pretty sure the silver nipple was either connected to the primer bulb OR it went into the tank BUT had no filter on it!
SO would it make sense to fit the filtered line to the black plastic nipple and follow the diagram after that?
I think this the most confusing as I dont think the cheaper saws have an impluse pipe. To me its logical that the plastic pipe on the carb would be fuel IN from the filter.....BUT I am not convinced as its not running correctly yet.
This could be because the carb is blocked or dirty I guyess but having never seen one without a bowl I am not keen on trying to clean it until I am 100% certain its plumbed correctly!
Seadog
Save the planet. It's the only one with rum!
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James1979
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pedrobedro
Man at Matalan
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There's an animated video explaining how the chainsaw carb works, I found it useful getting my head round it. I've refurbished and repaired quite a few saws and they are all still running but I never did any of the "supermarket" saws with any great success, they are made to a price and there are a lot of variations so you are stuck for spares apart from the main consumables like bar, chain and spark plugs. Buy a Stihl, Husqvarna, Echo or Dolmar and the parts are all readily available from somewhere
Some saws have the impulse built into the manifold and a hole in the carb flange to pick up the impulse. Zama and Walbro are the main carbs used on better saws.
Some saws have the impulse built into the manifold and a hole in the carb flange to pick up the impulse. Zama and Walbro are the main carbs used on better saws.
