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My mountfield v35 goes to a really high throttle setting when started and sounds like it is choking when running - any tips on resolving would be appreciated.The high revs only stabilise once the engine is hott

Posted by Anonymous on

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 109 Answers

SOURCE: starts on choke but dies when moved off choke

If it will start on choke and die when choke is taken off...the carb needs to be taken off and cleaned. The main jet in the carb is probably clogged.

Posted on Apr 21, 2009

  • 151 Answers

SOURCE: 10 hp briggs runs at high speed, govenor don't seem to be working

One possible cause for this problem is debris,sticking,or frozen linkage between the governor and the throttle butterfly. Depending on the make and model of your engine it will either be a mechanical governor that has a arm that goes down into the case or a air vane governor that is behind the recoil shroud of the engine. Move all the linkage that connects between the governor and throttle and speed lever to make sure it doesn't bind or sticks. If it does pray a little silicone or wd 40 spray on it to help reduce friction. Also on air vane governors they can become stuck from debris that inhibits it from moving make sure there is nothing in the way of the governor. If all of the linkage is working properly and you still have the issue try adjusting the the fuel mix screws and the high rev. settings on the throttle lever (if equip.).

Posted on Jan 30, 2010

  • 279 Answers

SOURCE: Running problems with Mountfield HP454 petrol lawnmower

First thing to check is the air filter. It may be plugged.

Posted on May 28, 2010

barterjoe
  • 338 Answers

SOURCE: have a toroZ5035 mower 90

**** smoke sounds bad, If what you meant was white smoke then I know what is going on with the mower. The white smoke is from the extra oil in the cylinder head. There are tow causes for this. #1 the engine rings are worn and will not prevent the oil from running into the combustion chamber as the engine sits. #2 the carburetor is leaking fuel into the oil and thinning it out. This thin oil bypasses the rings easier and drives the oil level up too. I would recommend a carburetor rebuild. You can get parts from a local dealer like www.arcolawn,com Good luck barterjoe_64.png

Posted on Mar 28, 2011

  • 6468 Answers

SOURCE: mountfield mowers advice on starting

a bad safety switch

Posted on May 14, 2012

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1 Answer

Why does it run only with the throttle in choke position?


Hi John:
Sounds like it's too lean.
Try backing out the high speed screw 1/2 turn at a time until you don't need the choke. Then tune the high speed with saw running at full throttle. Screw in (lean) until RPM starts to drop, then back out 1/3 to 1/2 turn. Then set low speed at idle so engine is smooth but chain does not turn.

Nov 30, 2015 | Garden

1 Answer

Why does the mower have to be full throttle to start it, to make it move at all, and to stay running at all?


this could be a few things as to cause :

1- throttle cables stretch as they get older , if marking on throttle says "run" it might really be choke on carb - looking down carb body(air clean off) with engine off move throttle to choke the choke butterfly should shut off (choke does have small hole in it) the butterfly should not be just barely moving or half way it needs to be closed all the way
2- modern fuels leave deposits inside of carbs if machine is left to set for long times (weeks) these deposits don't just get washed away when the engine is started again either , they must be chemically or mechanically flushed away by either a carb cleaner (chemical) or taking carb apart and cleaning it totally out (inside and out) -these deposits cause poor carb performance and even non working engines
a method to keep from having to do this often , is to install a fuel shut off valve in the fuel tank ( might already have one there you just gotta look for it) and when your done with machine shut off the gas valve and allow it to run out of gas dry !

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1 Answer

Ryobi 9600 backpack blower. Starts great. Set to run, continues running. Upon attempt to use throttle, engine dies. Acts like choking out but removed carb cover an choke is no closing.


this sounds strangely like the high speed jet/pathway in the carb is clogged up with something ,

the best way to fix it is dissasmbly and cleaning of carb in solvent , but ive also had some limited sucess in past of using car fuel cleaner (says on bottle "cleans as you drive") too

Mar 09, 2015 | Ryobi Garden

1 Answer

Hi I have an mtd yardman ym 6021 sms Self starter, self propelled lawnmower. It starts reluctantly and then runs ok except it runs on full throttle all the time and you have to walk really fast behind it...


your primer is the choke the primer bulb pushes air in ti the bowl then it forces gas to inter the engine to make it start try spraying above the carburetor some wd 40 sounds like your throttle is stuck not letting your governor work ,happens alot

Apr 30, 2014 | Garden

1 Answer

My e series 142 spins the chain and idles insanely fast when I have the choke pulled out. Then when I give it throttle it calms down and then I can barely keep it idling. with throttle all the way pulled...


Check air filter- clean or replace, Make sure you have fresh fuel, A new spark while you are giving it a service, Do you know how to tune the saw? Start with basic settings 1 turn on the low and 1 turn on the high And adjust from there, You might have turned the idle up too high. The choke should always be fully in when saw is running. Hope this is a good start

Oct 04, 2013 | Husqvarna Garden

1 Answer

Poulan 45cc chainsaw will start running with starting with choke, but will not stay running.


Sounds like the low speed fuel adjustment is out of whack....you can reset it by turning it in all the way clockwise...then as a starting point, turn it out 1 and 1/2 times, start the engine and slowly adjust the screw until the engine starts to choke out..when this occurs, turn it back in until it starts to choke again...then you need to set it somewhere in between to find the "happy medium"....thew high speed screw is adjusted after you get the engine idling properly...if you haven't messed with this then I wouldn't worry about it..unless you have poor high speed operation, then you will need to set the high speed screw...the object here is to obtain the best low to high speed throttle...if , when you throttle up the saw, the engine bogs or goes to high speed slowly , here is where you adjust to get the best throttle response...use small increments until you achieve the desired response

Apr 26, 2011 | Poulan Garden

4 Answers

Hard to start lawn tractor


I have 2009 lawn tractor that will not start (from day 1) unless I use a small squirt
of start fluid into the air cleaner area. Nothing else seems to work. The battery will run down before it starts. Once engine is warm it starts great. Love the tractor,
hate the starting problem. Elevation is not a problem in michigan.

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2 Answers

Carb settings mixture jets on a homelite weedeater st155


ther is no set setting but to get it to run so it can be adjusted. lightly close the high off then open the low about two turns. try to start if starts slowly adust the low screw till it runs normal with the choke all the way off. then start to add throttle while turning the high out till regiured rpms ar reached with no misses. this takes awhile even fo a seasoned mech and may require several attempts

Dec 24, 2009 | Garden

2 Answers

When chain saw is starte it goes to full throttle.


You understand there is a fast idle start position? If your saw is new it is triggered when the choke is pulled and remians in this position (even when choke pushed in) until the throttle is advanced once. Read your warm start instructions, it says pull clutch, push clutch, start. This is why we should buy saws from a chainsaw seller/mechanic NOT Home Depot!!!
I made the mistake ONCE of attempting to start mine without the fast idle engaged... my shoulder aches just thinking about it. GL
Lou

Sep 13, 2009 | Husqvarna Garden

1 Answer

I relpaced the fuel lines on my Mccullough Eager ****** leaf blow


ok then these are the low and high speed adjusting screws. first make sure the spark plug is clean of buildup or new . what you need to do is first try to get it to idle with the low adj screw. now im not sure which ones which so try one and if it makes no difference during idle then try the other. start it if it dies turn the screw , repeat this until you get the right sound and steady idle.once you figure out the low screw trun it all the way clockwise then turn it counter about 2 turns. then tune the idle from here. you want it to have a steady sounding idle. now the idle sounds good use the high screw to adjust the throttle. give it about half throttle and turn the high screw until it sounds steady here. then go to full throttle and turn high screw until it sounds steady here. now it should sound steady at idle and throttle. and try not to trun the screws more than 1/8 to 1/4 turn at a time,especially the high, you dont want to blow it up. lemme know how it goes

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