Advice on 051 problems

[swinny]

mines still not working, havent had chance to look at it for a while.... are they funny to start at times??

[wisecobandit]

mines still not working, havent had chance to look at it for a while.... are they funny to start at times??

Like any saw they can have there moments but generally not to bad.

If they've not been started for some time or ive rebuilt one I do have a tendency to pour a teaspoon or so of fuel straight into the carb first tho rather than pull your guts out.

Im assuming you have spark? Do the above trick and see if it momentarily fires up. (no choke required but trigger locked on part throttle)

 

Also both make sure your chokes are on, to me the switch marking is arse about face and opposite to what it should be....

[muttley9050]

Thanks, I have the Ipl and manual already, I assumed you were talking of some pressure testing gizmo or something. All parts were ordered against the part numbers so should be good.

I really need one of these saws up and running for the smaller milling jobs, spuds too busy to help, and I was recommended a local saw doctor called mark Taylor, I going to take one with little compression to him tomorrow and see how he gets on.

The one I'm playing with at the moment has loads of compression. Have been putting a little fuel in the carb and can get it to fire but not run. Determined to fix this one myself. And if I can get one running elsewhere it takes the pressure off.

One more things been puzzling me. This saw had a faulty on/off switch so I replaced it. But how do you know which way is on or off? Which way should switch be fitted? It seems to have a spark regardless of switch position, so what does the switch actually do. I kinda assume something else is up as surely it should kill the spark.

I also agree that choke markings are incorrect, but when I bought the saw it had already been made clear with a sharpie.

Thanks again.

James

 

Sent from my GT-I8190N using Arbtalk mobile app

Edited March 22, 2014 by muttley9050

[Eddy_t]

I assume you've cleaned the carb, new rubbers, reset the carb, another thing is if it has a decomp, it may be leaking, bloody things!

 

 

Sent using Arbtalk Mobile App

[muttley9050]

Yep carbs all shiny and no decomp that I know of.

 

Sent from my GT-I8190N using Arbtalk mobile app

[wisecobandit]

The decomp would be sticking out to the right of the sparkplug. There will be a hole in the casing you will prob be able to look in and see a blanking plug fitted if you don't have a decomp. (btw for the sake of £20 for decomp it does make life much easier)

I assume you have twiddled the carb screws slightly etc but to be fair 3/4 on low and 1 on high is normally the ball park.

Double checked the new diaphragms and gaskets are all in the correct order?

Impulse line and and fuel line connected the correct way around to the carb and good condition?

Is the sparkplug wet or dry after you have been attempting to pull it over?

Carefully pull/lever the white elbow the fuel line connects to and check the rubber fuel feed line in the tank isn't perished and has a good filter as these often get overlooked and are still available.

[muttley9050]

Pretty sure there is no decomp but I'll check. Will look in to getting one if I can get her going.

Thanks for the advice.

 

Sent from my GT-I8190N using Arbtalk mobile app

[wisecobandit]

If you get stuck in a big way with it then I will always look thru it for you but im in Devon so would have to post it etc.

Think its just a process of elimination. Check the sparkplug first and see if its dry or very wet after pulling it over trying to start it.

BTW the on/off switch simply just earths out the single wire. If it still works with the switch off then its not earthing properly either a faulty switch or the switch body isn't earthing well to the saw body so clean up under the nut with some emery or wet and dry.