WeldanPower 225 hesitates?

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My WeldanPower 225 Ac/Dc , vintage mid 80s,  is a good machine with low hours. Mine has the Briggs engine 16hp.  I've replaced a lot of minor items  this summer purely for maintenance.  New gas lines, filters, and flushed and redid the carb with new jets and float. It idles very smoothly now at a smooth low rpm. It ramps up well to welding RPM.  Settings:  Power Dc+, 95 V and automatic idle.  ????  When I'm welding with it, for ex: 1/8" 6010, I strike the arc and it hesitates about a long 2 count, thousand one, thousand two... and then just about the time I figure to strike again it  revs up and UR off and running. ???  is that normal or do I need to adjust sumthin'?? Cease welding>  It takes a 15-20 count to go back to idle, but I believe that is normal to flush and clear eveything. enjoy and thanks for the tips,Bretps; nope,  Duanes is still a lot prettierLincoln Power MIG 215Lincoln WeldPak 3200HDLincon ProCut 25Lincoln WeldanPower 225 AC/DCIf all else fails... buy more tools
Reply:Hesitates as in engine stumbles or it hesitates to come off low idle?If engine stumble, then I'd have to say jet adjustment (go richer) or low fuel bowl level due to improper float adjustment.If slow to come off low idle, a long shot but possible corroded connection somewhere in the weld output current transformer circuit (primary or secondary) or ???MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Thanks Duane for the info,  The engine feels smooth thru all rpms...I'd say it is the latter problem  I'll start a visual inspection and  open up a few circuits and see what impedence I've got thru a  wire or leg.. It has not been used for awhile so with use  it mght improve?   Should it be hesitating at all?   or I touch the stick and hear it raise RPM immediately, that's what I think I want it to do?  BretLincoln Power MIG 215Lincoln WeldPak 3200HDLincon ProCut 25Lincoln WeldanPower 225 AC/DCIf all else fails... buy more tools
Reply:Release from idle should be virtually immediate upon striking an arc or applying an AC load.If you haven't already I'd check to see that the solenoid/linkage isn't hanging up when retracted to the low idle position causing the delay.Input signals to the idler board from the weld and auxiliary power current transformers is very low (only 1-2vac) so it's possible a poor connection at wire #216 or #217 board terminal is to blame.Does it hesitate to come off low idle when an AC load is applied?  If not, switch wires #217 and #218 and try it.  If the hesitation goes away when striking an arc my first guess would be a bad board capacitor C1 in the weld sensing circuit of the board.???MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:on my lincoln engine drive I had the same problem.  I would stick the rod till it ramped up and then pull it off wne then start welding.  It was a nightmare if the metal was already hot; the rod would always stick.  anyhow, I welnt through every connection.  I cleaned everything that could be cleaned and something in there was dirty.  I can't say which connection was faulty but it fixed the problem.  I would start there before I began purchasing parts.
Reply:Thanks guys I'll go at this weekend and see if I can get her cleaned up and check it on A/C  too.Lincoln Power MIG 215Lincoln WeldPak 3200HDLincon ProCut 25Lincoln WeldanPower 225 AC/DCIf all else fails... buy more tools
Reply:I would check it on all its features.  dc+ dc- ac and then I would check it using a grinder.  you may find it only has trouble using the welder or that it has trouble in all the functions.  it may help trouble shooting.
Reply:I would suspect the carburetor.  When the engine comes off idle, the vacuum is low because the throttle plate is pulled open by the auto ramp up.  You need the fuel level to be correct for the low vacuum to pull the fuel through the main jet and atamozitation tube.  All small engines suffer from the same scenario, especially the big singles like the Kohler.  You stated you rebuilt the carb and cleaned the jets and you might have inadvertently jostled the float setting, it's easy to do.  I'd drop the bowl and bend the float tab just slightly downward (that will allow a higher static fuel level) and try it again.You can actually raise the fuel level until it starts coming out the atmospgeric equalization port (that's where it comes out when the float needle is stuck open).  A that point, the level is too high.  Most manufacturers recommend a fuel level at or near the physical split between the float bowl and the lower body of the carb, however, yours may be different.You should be able to find the recommended float level settings on the engine builders website.Your comment of the engine running smoothly at various rpm's  but won't ramp up quickly ftom base idle is indicative of low fuel level.  Sustained RPM had the throttle plate closed down and high vacuum.  The fuel is able to be sucked into the main jet and atamozation tube.  Engine idle isn't through the main jst but rather a pilot jet or idle bypass circuit.I have an older (bought new) 150 ac/dc Lincoln Weldanpower with a K241 Kohler and the float level has to be set just right or the enfine stumbles when loaded.Last edited by SidecarFlip; 10-21-2010 at 04:22 PM.
Reply:Papalion...Does it weld allright when you use the machine? And, does the engine pickup when you sue the AC outlet? if the welding checks out but engine  picks up slow, sounds like a bad connection to me. Even the welding leads, got to check it all out. Hope this helps
Reply:All good stuff for me to follow... After all I have nuthin' else to do Saturday  Actually the weather is beautiful and it will be aok.  I have not put a load on the A/C circuit much, so that'll get done too.  Hopefully Monday I'll have some news.  Thanks much for the direction. enjoy, Bps; Welcome SideCar,  read your intro, CNC, parts, Motorcyles, bring it into the shop to do... retired? sheesh.  I think our whole generation is going to retire to working harder than we ever did but hopefully on the stuff we had to put off when the kids wanted foolishness like food, clothing and shelter.Lincoln Power MIG 215Lincoln WeldPak 3200HDLincon ProCut 25Lincoln WeldanPower 225 AC/DCIf all else fails... buy more tools