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Discussion Forum

Bolens 1050 misfire and air filter question

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Author  [Modern View]

01-05-2010 07:37:20

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I was lucky enough to pick up this bolens 1050 with implements and a hydraulic system last week. It was not running when I picked it up and apparently had not been running for some time:

As usual with a lot of mowers I took the carb completely apart and cleaned it and cleaned the points which are located in a small compartment behind the carb (and of course very difficult to get to without removing carb).

I was able to to get her running. However I have a misfire - it is irregular and just a single 'bop' now and then and is throughout the power range - any ideas what this might be? I actually have a new set of points that came with it but no new condesor although there is one on an old set of points. What is the usual symptoms of a condensor going out? If it was dirty points would it not be a more regular misfire as it is a single cylinder engine?

I replaced spark plug and have a fully charged battery.
Also anyone know a source for the air filter on this engine which is a wisconsin TR10D - I have found some companies on the web which sell them but it looks so generic that I wonder if there is an aftermarket filter available at the local store if I have the right part number.

Thank you,


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Kentb of SWMO

01-06-2010 06:26:19

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 Re: Bolens 1050 misfire and air filter question in reply to Britcheflee, 01-05-2010 07:37:20  
You might also check the valve clearance on the TRA-10D Wisconsin. I have one that used as a parts machine. If I had the money I would put one of the 10 HP imported diesel one lungers in it. The Wisconsin in it has a bad rod. The cost to rebuild the Wisconsin would be about what I can buy the diesel for a re-power.


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01-05-2010 08:13:04

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 Re: Bolens 1050 misfire and air filter question in reply to Britcheflee, 01-05-2010 07:37:20  
Try gapping and cleaning the points.

Gap the points with a CLEAN feeler gauge. Also, make sure they aren't binding on the pivot pin.

With points closed, pull a clean piece of white cardstock through them a few times to burnish them.

Then, turn the engine over 'til the points are open and hose them off with electrical contact cleaner and allow to air dry with them remaining open.

A sticky valve could also cause in intermittent miss. I'm sure you'll get lots of opinions as to what magic "Tiger Pee" is best to clean them up, so I'm NOT gonna go there!

Air filter is WIX 42302 (NAPA 2302).

A bad condensor is a REMOTE possibility. About ANY REAL autoparts store with an "associate" that's willing to grab the Ag and Industrial paper ignition parts catalog can get you a condensor, if it comes to trying that.

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