Mountfield SP164 Petrol Lawnmower How To Service ST120 Engine WBE120 Engine
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- Опубліковано 6 тра 2020
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In this video, I show how to do a full service on this Mountfield sp164 petrol lawnmower with an ST120 OHV engine. I take you through everything you need to know to service your own lawnmower.
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thank you so much after watching this i stripped the carb on my TESCO MOWER gave it a good clean reassembled and off it went. awesome mate
Fantastic video. I bought this exact mower a couple of years ago and it was starting to run abit rough. So I'm going to give it a full service now having watched this video.. 😁👍
Thank you for a brilliant video. Gave me the confidence to fix my mower myself at virtually no cost (a can of carb cleaner).
Brilliant video! Really appreciate the effort your putting in to your channel! Keep up the good work!
Gareth Price Thanks Gareth
Great video, just used this to service my 2 year old mower, which was starting to be hard to start and was running a bit erratically. Air filters cleaned and now drying so fingers crossed for tomorrow morning when I put it back together and try to start it !
i have one of these and your video saved my god knows how much. thanks
Emily Hilley Happy to help Emily! hope you subbed!
Hi, thanks mate I really found your video very helpful
Another great informative video Paul.
Alan Saville Thanks Alan
cracking video , i aint ever worked on a mower and just using this video i managed to get my mower working again if 1 issue the 1st thing shown before the carb clean should be the kill switch , that was my problem , the black part on handle was lose so it wasnt disconnecting the kill switch but thanks and keep up the good work
Nice work!
Thank you so much for this video, I've had this mover 9 months nothing but trouble starting it. Watched your video Learnt about the spring connection to the oil and spark plug adjusted it, starts first time ever time, you're a star
Can you clarify what you mean here? Spring connection to the oil?
Fantastic video…Thanks for sharing
Gud stuff. Easy to understand. Thanks ❤
Recently purchased this very lawnmower. Took me almost a week to get it started after put it together. Checked everything that Mower Man advised to check but all seemed to be as it should. After scratching my head with a mate and the pair of us looked at it, we found that when pulling on the OPC lever there was no separation of the engine break. After we bent it slightly we were off and seems to be have been working well every since. So just thought I share this in case anyone experiences this same problem, not sure if was just a one-off or not. Usually you're advised to take it to the nearest service centre but as I leave in the NW Highlands, the nearest centre is an 80 mile journey there and back.
Good job
WOW FANTASTIC VIDEO, my mower is two years old from screwfix, and it starts but then dies after 2 mins......never taken an engine apart of any kind but this is a damn god send, bless you my friend, very helpful indeed.
thanks, got hp164, but everything looks same, helped me 👌👍
Great video thank you. My Mountfield St120 wouldn't start for love nor money after winter storage and I did the usual.......drained and cleaned the fuel tank.....took the bowl off the carb and cleaned it......liberally dosed the carb in cleaner.....put a brand new spark plug in. It still wouldn't fire up. After watching your video I checked the gap on the spark break and yes the cable from the dead mans handle had obviously stretched slightly because there was no gap. I enlarged the gap by gently bending the break using a large screwdriver and the mower fired up on the first pull. Many thanks again because I was about to leave the machine out for the scrap man and go and buy a new mower.
Re: the fuel filter in my opinion these slim insert type filters are a waste of time. Always clogging up. It's easier just to remove it completely from the fuel pipe and occasionally flush any crud out of the bottom of the carb by undoing the drain nut.
Great stuff!
Came here to say exactly this. Went through all these steps and then checked for the gap
Thanks for this brilliant video. Got my mower up and running. Now to replace the cable - is there a video for this? Thanks again.
Many thanks for this informative video. I now know where the fuel filter is. Obscure little stick thing. I've had the hand push version of this mower for a year now (Mountfield HP164) and am pleased with it. Not a bad little engine at all. I always went for mowers with USA made Briggs and Stratton engines previously but a lot are now made in China. The aluminium block Stiga engine is probably Chinese but looks well made enough. I prefer the aluminium bowl carb to the usual plastic Briggs and Stratton carb. I've bought a conventional fuel filter and am hoping there is enough fuel hose to be able to fit it.
hi mate good video with lots of information thanks
Tommy Smith Cheers Tommy
Very good comunicater
Nice! I love that overhead valve engine! ♥️♥️♥️
Particularly interested in that air filter box 👌🏼
Emma Cruises haha! The self drive cruises along..
Hey Paul. Another great video. "Lovely stuff" - Not my words, the words of Shakin' Stevens [love the Partridge reference]. Just for clarity, the 'keyway' is the groove in which the [Woodruff] 'key' goes. A small point but worthy of mention. Also loving the detail about seals - remember, we're never gonna survive unless we get a little crazy...
I've got kenco coming out of my nostrils
@@MowerMan I nearly soiled myself.
Hi, I've just had one of these mowers. I filled it with the specified amount of engine oil (0.45L) which ended up being too much, the oil was far too high on the dip-stick. I called customer services who advised to fill the mower to the level indicated on the dip-stick. Its also important not to tip the mower on its side as oil can go through to the air filter housing. Hope this helps even if it sounds basic to some. 👍
Got really fed up not being able to start my SP164, 10 pulls at least every time, I’m not mechanically minded , but came across your vid, and thought 💩or bust, cleaned out the carb etc, and bugger me it started first time, so grateful for a very well explained vid, brilliant.
Awesome
Just done a carb clean and still running rough didnt know about the fuel filter so ill have a look cheers
Great advice subscribed.
Thanks for the sub!
@@MowerMan do you have a recommendation for a roller mower start up garden maintenance
great. off to find a 'drain the oil' video
Great video. I need to service my HP42 which has the same engine. Thanks
bongsound No problem!
Had problems with my mower stalling this morning, it was the filter from the tank to the carb. Temporarily removed and it now runs great. Looking for a replacement filter now
leave it off
I read the Stiga manual for this engine and it says about measuring the oil level "- if the dipstick is short (WBE120) , place the
cap without fastening it,
- if the dipstick is long (WBE140, WBE170), fasten it again
with a click and then unscrew it"
How do you change the drive belt?
Have you got a video of replaceing the drive cable on this model please? As mine has snapped
Thanks for all the information. I have a similar mountfield petrol mower now in its fourth year and it won't fire up. I wonder if it could be because of the change to premium fuel. I watched all your video but you did not show replacement of the spark plug cover. Does it just pull off and push on? I also don't have tools and would not know what to buy. Some of the tips you have shown I could attempt to check before resorting to getting the lawnmower repaired. Thanks
Thanks, pal. I have the hand propelled version of this mower, which has carb issues. Now I know what to do. One question. With the airbox in place there is one plastic screw accessible from the front. Have fiddled with that and it didn't seem to change anything. Is that an idle jet or something?
Superb video, very informative and everything explained in an easy to understand manner. Could you clarify one point for me? When checking the oil level I believe you screwed the dip stick back into its holder. In my documentation it suggests that when you dip the oil to check the level you DO NOT screw it fully into the holder. I wonder if this is why your mower only took 200 ml of oil.
Any comments would be welcomed.
I would follow the manual. Maybe I got this wrong
I concur, the documentation does instruct you to measure the oil level on the dip-stick by not screwing it back on, just rest it on the top of the thread. I just bought this mower yesterday and the instructions say it should be filled with 0.5 litres of oil. This I did but when I dipped to check the oil level by fully screwing the dip-stick in, it was way above the max mark on the dip-stick. Double checked the manual it says not to screw it fully back. Dipped again without screwing it home (just resting it on the top of the threads) and low and behold the oil level was dead on the max level mark.
Brilliant instructional video presented in a friendly and affable way. Very impressed that you serviced RAF Tucano aircraft in a past life.
@@wernercook1005 with the Briggs they say to screw it so perhaps that’s why the confusion occurred
Thanks for that, just got my 2 year old Mountfield HP42 up and running again after watching this. One question, I wondered if I could fit an external inline filter between the tank and carb - seems to be enough length in the pipe and might be more robust than the silly little straw filters?
👍🏽 I was thinking the same!
Hi great videos have sp414 need to change oil carnt see a drain plug can you advise me where it is or they a sealed unit ?
How do you change the coil?
I did the same thing with the carb bowl seal and it now won’t fit back on and I can’t seem to find a replacement.. please could you help me with some info on where I can get one ?
Hi mate do you know vaulve settings for a mountfield rm55 or were to get the info thanks allan
Hi Paul I’m having difficulty finding a spare carb for this mower . Any info on where I can purchase a spare . Thanks
Yes the Rs100 does have the fuel filter fitted
Neil Stemp Thanks Neil
Hiya do you have any videos showing how to adjust valves on the mount field mowers cheers
I have one somewhere
Hi, I have managed to take off the carburettor but I cannot unscrew the brass emulsifier tube. I’ve sprayed it with WD40 but it still doesn’t budge. Does this mean I have to replace the whole carburettor? I’ve had the petrol mower for about three years
Hi great video. I have what amazon sell as SP45. I’m assuming its the SP454. It’s 123 cc ST120, just a question i bought the spark plug and socket listed in your links
The spark plug is 14 mm. but socket is 19/20 mm is this an error. Ty
Great video, just bought the sp164 and used today. How do you remove the spark plug like it suggests in the manual. We have tried to remove but really stiff and unable to remove. Any tips? Thanks.
like this ua-cam.com/video/Dcs-GJVkxJc/v-deo.html
Can i ask you to check the links. I brought one for my mountfield sp42 via the link and its completely different to the one in the video
Hi, it's a good video most informative. My one is brand new and won't start. Any ideas?
Hari Cheema Not sure without seeing it tbh. I would take it back
great mower saw you cutting the lawn with a nice slow walk but I have to walk faster ,can it be slowed down a bit
If you slow the engine down a bit the drive will also slow down. You would need to stretch some of the springs though so not really recommended.
Hi, great video and very helpful.
I was just wondering if this engine is the same as the Stiga engine on the Mountfield hp185?
Regards Ronnie.
it will be different to this. Same principle applies though
Thanks for your helpful reply 🙂
Hi, my dads looking to replace a really old Mountfield and was going to buy a SP185. Ive seen a SP454 that’s almost the same but has this engine compared to the Briggs and Stratton that the SP185 has.
I know the Briggs will obviously be better, but from your experience are these engines good enough when you consider an £80 difference in price? Cheers
I would like to know this too. How does the B&S engine compare to Mountfield's ST120
Hi, great video, this may sound like a silly question but how do you drain the oil (is there a sump plug) and is there an oil filter which can be changed? Thanks
You can buy a small vacuum pump on eBay that sucks it out
@@themowerman is this the only way? Had other mowers where you just tip but this would would probably flood the filter
@@johnnywalker9082 some engines do have a oil drain plug at the bottom.. as long as you tip them carb side up you should be ok..
@@themowerman 👍
Nothing to do with this mower but can you tell me where to get a blade boss for a SP470 from? This is another great vid tho 🙂
lots on ebay
Can’t seem to find any with 52mm centre to centre location pins.
What should inside the black cover of spark plug look like?
It should have a metal connector that attaches to the plug. You usually hear it click when you push the plug in. Change the coil if it's not there.
Thank you what type of spark plug is best for this mower and where from? Thanks so much for your help
@@ChelseyLovejoy-cv4ot NGK B2lm. Type briggs 35 classic spark plug on ebay
Hi it starts up but cuts out.
I’ve changed all the gaskets as the was leaking fuel but won’t run please get back to me
Lol im just jealous lol
Hey mower man.i,m a new subscriber. Do you have an email address, I'm trying to get stickers for my new collection if you have one spare?
Mower Man retired from making videos a while back, unfortunately.
1st Error, the carburettor bolt pointed out is not to drain the bowl, the correct bolts the one along side at a angle, I guess an easy amateur mistake to make. Actually the guy is an idiot, best you find another guide to service your lawnmower.
Have a great day..