John Deere LT 170 misses under load?!?!?!?!?!

Joined
Aug 12, 2011
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Hi Guys / Gals,

I though I would see if anyone had any suggestions for me before I start replacing ( more) parts.

I have an LT 170 with a briggs 16 horse V twin. Just recently (past two months) started missing under load going up hills and is getting worse. What I have done:

1) Use Stabil - no change
2) Change airfilters - no change
3) Change fuel filter - no change
4) Change and gap plugs ( new) - noticeable improvement old plugs were .005 out of tolerance.

Most of the missing had greatly diminished...almost all gone...but the next use seemed to take a step back with performance degrading again under load again. Adding choke under load seemed to make a slight improvement in performance, but it is imperceptable at times and is hard to say how much improvement if any.....

5) Changed fuel pump - no change

I would entertain looking into the carb first, but have considered coil / wires which appear to come as part of the armature assembly......realy want to nail this down a bit further before I throw more at it.

Any one care to share his / her thoughts? It would be greatly appreciated!!

Best,

Steve
 
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