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1980's JD 125
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<blockquote data-quote="skidsteer.ca" data-source="post: 19530" data-attributes="member: 307"><p>Hyd lines will bleed themselves over a short period of time usually. Boom up then down, bucket dump then curl, a few cycles then shutdown and let the bubbles in the hyd reservoir rise up to the top.</p><p>The fuel system, if it has air in it do to leaks in hoses etc or if you open up the filters will cause no starts. Not familiar with that engine and some motors pick their fuel up pretty good others require a extensive bleeding procedures. (most are not too bad)</p><p>If you put on a new filter, open the bleed screws (usually on the filter and or injection pump) and there should be a primer or lift pump system to prime the fuel up to the injection pump. If there is no lift pump install a primer bulb (outboard motor/boat style) in the fuel line. Or connect the engine to a fuel can on the roof and start a syphon to aid in bleeding the system.</p><p>I try to avoid opening the fuel filters unless I'm prepared to change it and restart the engine while its still warm to conserve the battery power. But its not absolutely necessary to do it that way it just helps.</p><p> Any loads the hydro drives place on the engine while trying to start won't help. but with the wheels up you should be able to get it to go</p><p>Ken</p></blockquote><p></p>
[QUOTE="skidsteer.ca, post: 19530, member: 307"] Hyd lines will bleed themselves over a short period of time usually. Boom up then down, bucket dump then curl, a few cycles then shutdown and let the bubbles in the hyd reservoir rise up to the top. The fuel system, if it has air in it do to leaks in hoses etc or if you open up the filters will cause no starts. Not familiar with that engine and some motors pick their fuel up pretty good others require a extensive bleeding procedures. (most are not too bad) If you put on a new filter, open the bleed screws (usually on the filter and or injection pump) and there should be a primer or lift pump system to prime the fuel up to the injection pump. If there is no lift pump install a primer bulb (outboard motor/boat style) in the fuel line. Or connect the engine to a fuel can on the roof and start a syphon to aid in bleeding the system. I try to avoid opening the fuel filters unless I'm prepared to change it and restart the engine while its still warm to conserve the battery power. But its not absolutely necessary to do it that way it just helps. Any loads the hydro drives place on the engine while trying to start won't help. but with the wheels up you should be able to get it to go Ken [/QUOTE]
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