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    Unable to start MS170 so advice needed for me to rule things out

    Anybody know about checking the coil ? Meter set to 200 ohms Connection from coil metal body to kill switch spade terminal My reading is 02.2 Primary Winding THEN Meter set to 20K Connection from coil metal body to plug lead inside cap My reading is 10.16 Secondary Winding Like shown in photo
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    Unable to start MS170 so advice needed for me to rule things out

    It is the wire mentioned above. The yellow wire is mounted to the top of the coil & travels down to a connection. The black wire goes to the coil itself & also travels down by this connection. The connection between the two are made by a spring like piece of metal that it attached to the chock...
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    Unable to start MS170 so advice needed for me to rule things out

    @jj4091 which section you referring to in the pdf ?
  4. I

    Unable to start MS170 so advice needed for me to rule things out

    The stop switch being the black kill Wire to coil ? If so above mentioned it yes.
  5. I

    Unable to start MS170 so advice needed for me to rule things out

    I agree with spark Lines of piston were maybe more than expected So coil is ordered, anything else spark related i can check ?
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    Unable to start MS170 so advice needed for me to rule things out

    End of last season i was unable to start my MS170 so i left it until the new year when its going to be used again. Looking in the port when carb removed i could see some scoring on the piston, probably as my mix used is 40:1 So ive decided to just fit a new complete engine unit, see photo...
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    MS170 oil pump worm gear advice

    Ive removed bar & chain then clip / clutch drum etc & see there is a cut out notch in the clutch drum. The spring leg needs to locate in that cut out notch. Then when engine is running & clutch drum spinning the spring leg also spins thus operating the oil pump.
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    MS170 oil pump worm gear advice

    I assume that is what the part is called ? See attached photos. I’ve fitted a new cylinder block/ piston assembly to my MS170 After I finished crying as the new item had 5mm threads & wasn’t the same as my original I then need to ask this question. I removed the clutch & then behind was a...
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    Single glazed glass in wooden frame

    DG was to expensive & property up for sale. Im now painnting the frame
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    Single glazed glass in wooden frame

    My kitchen has a conservatory attached. Between the two the window in the kitchen was removed years ago but now I wish to put something back. The opening is say 5ft x 3 1/2ft but the window will only be about 1meter square & the other part will be a few shelves. I’ve made a 3 x 2 frame then...
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    Mountfield SP454 running issues

    Running fine
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    Mountfield SP454 running issues

    Done. I cut away a little of the plastic that the brass jet passes through. Managed to get a hole through it & see daylight. Put it back into the black part & touched edges with soldering iron & made a good contact with black plastic & brass part. Short video...
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    Mountfield SP454 running issues

    It’s well blocked. I’ve removed it from the plastic part as had no choice. Any reason why I can’t leave it out & just refit the black plastic part ?
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    Mountfield SP454 running issues

    Wont budge. My needle jet cleaner will go in so far & thats it. So not sure if its same size hole all the way through or tapered. Compressed air does nothing
  15. I

    Mountfield SP454 running issues

    OK ive removed that plastic part & the small hole is blocked At the bottom is a brass part, i assume that needs to be clear
  16. I

    Mountfield SP454 running issues

    So remove & clean item by blue arrow
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    Mountfield SP454 running issues

    So going by reply above the dripping fuel from below carb / air filter was due to me pushing primer bulb numerous times thinking it was squirting fuel in. So now I take onboard it’s just a squirt of air I press it once or twice & go to start mower. Today the gasket arrived & I’ve now fitted...
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    Mountfield SP454 running issues

    Carb & main jet & emulsion tube has been apart & cleaned. I am them pumping too many times hence the fuel on the deck. I will order a carb gasket.
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    Mountfield SP454 running issues

    Ive been out & deck is dry. Ive pumped the primer say 10 times & now i see deck below air filter housing is wet with fuel
  20. I

    Mountfield SP454 running issues

    Ive been cutting grass for a few years now & all my neighbours think im a mower man repair guy hence why ive been given another mower to look at. This time its a Mountfield SP454 & overall its in very good shape / condition. Lady told me it just died & wouldnt start again then left in a dry...
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