2 Cycle Engine No Spark - Automotive Repairs - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Do It Yourself > Automotive Repairs


Thread Tools Display Modes
Old 06-18-2011, 07:25 PM   #1
Join Date: Jun 2011
Posts: 1
Rewards Points: 10

2 cycle engine no spark

I've got an old Mac 2816 that has no spark. Initially I tried changing the spark plug with no result. Next I disconnected the kill switch, (which had a small fray on the insulation of the wire going to it. I still got no spark when I cranked it. At this point I suspected either a worn or sheared flywheel key or a faulty ignition module. Both the key, and the keyway were in good shape, showing no wear, or deformity. Finally I was able to find a new ignition module for the machine, (no small feat in itself), but after swapping out the old one, I still have no spark.
Since I had the recoil start housing off the machine I spun the engine using an industrial electric dril at approx 175 rpm.
It's a pretty simple circuit, with no interlocks or anything that I'm aware of. As a result, I'm stumped. Does anyone out there have any new ideas I can try?


walkinman is offline   Reply With Quote
Old 06-20-2011, 09:44 AM   #2
Join Date: Jul 2010
Posts: 2,130
Rewards Points: 120

Not sure, but I'm thinking that the "kill switch" is simply a ground, so you disconnected it, but did you repair or replace the frayed wire? If not, it seems that could be your problem.


DexterII is offline   Reply With Quote
Old 06-20-2011, 05:25 PM   #3
Join Date: Jul 2008
Location: NJ
Posts: 327
Rewards Points: 392

It's also possible that you bought a defective module. Just because it's new doesn't mean it's good
rustyjames is offline   Reply With Quote
Old 06-20-2011, 10:12 PM   #4
Join Date: May 2009
Location: anoka county mn
Posts: 317
Rewards Points: 256

when you say ignition module do you mean coil? if so did you use a feeler gauge to set the gap from the magneto to coil?
oldrivers is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
2 cycle engine problems noquacks General DIY Discussions 10 07-28-2011 07:32 AM
2 Cycle Engine Repair TJ_in_IL Tools 1 11-09-2010 01:12 PM
improved 2 cycle engine oil? oletrkguy Landscaping & Lawn Care 0 11-08-2009 11:50 AM
Kawasaki FE-350 11.5hp 4 stroke engine wings3630 Landscaping & Lawn Care 2 08-05-2008 06:08 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1