procharger Posted March 12, 2016 Report Share Posted March 12, 2016 My starting problem back, will not start pulled plugs several are wet, yesterday started as soon as i turned key, today nothing, replaced with new plugs no start it tries but same problem some new plugs wet pulled out the 4 on top and grounded them to engine number 1 and 2 on top will not fire 3 and 4 on top look good didn't check any on bottom figured was no need i have a problem.??SUGGESTIONS I guess I will switch boxes and see what that does first. If I need new Ign boxes looks like I have the plugs that have 5 wires on one plug and 6 on other plug which box do I need to order if that is whats wrong? thanks Link to comment Share on other sites More sharing options...
Roger Lee Posted March 12, 2016 Report Share Posted March 12, 2016 Hi Procharger, You shouldn't pull plugs on the 912 like the old lawnmower and try to see a spark. If done wrong you will kill the ignition modules. The second item is you most likely won't see the spark even if there is one unless it is black outside. This isn't the plugs, the coils or a fuel issue. You have either low rpm and before you say no it needs to be ruled out as an issue. leave no stone unturned and follow in a logical path or you may look a long time. My guess is this is a simple fix. Either hookup something to jump the battery or use a different battery. Next I would look and check the wires on the back of the starter switch and put a screwdriver on each screw. Second I would check both red wires coming off each module plug and follow them and see if the insulation has rubbed through and they have grounded out. Check the two white ground wires that come off the modules too to make sure they have not grounded out and these will also be on the back of the starter switch. This is possible that you had one module stater circuit that was bad, but didn't notice since the other one was functioning. The second one may have now quit too. Two things to check modules. You can send them to Lockwood and have them checked. You can also put a one gallon ice bag on them for about 30 min. and then try your start. Full choke and crack the throttle. If they start then buy two new modules. If they don't then time to look some more for a bad wire. Link to comment Share on other sites More sharing options...
FastEddieB Posted March 12, 2016 Report Share Posted March 12, 2016 When I had my "no start" problem, I think it was Roger that recommended an inductive timing light. Fairly cheap, starting at just over $20, and for me it confirmed there was no spark, and in my case it was the modules. Link to comment Share on other sites More sharing options...
Anticept Posted March 12, 2016 Report Share Posted March 12, 2016 Throw me a recommendation for a timing light. Link to comment Share on other sites More sharing options...
procharger Posted March 12, 2016 Author Report Share Posted March 12, 2016 I had the plugs grounded really good to engine as stated before i switched places where the plugs were fireing with the ones that weren't and still no fire so something is wrong, with all the start problems I have been having guess I will switch boxes and see if I get fire on the bad ones. How often do coils go bad and I believe there is a trigger device on back of engine is that correct thanks?? Also I was doing all this in the dark so I am sure it's dead. I also had jumper cables on and it was turning over really fast. Eddie both modules bad on yours or you just replace both because one was bad?? Link to comment Share on other sites More sharing options...
FastEddieB Posted March 13, 2016 Report Share Posted March 13, 2016 For the timing light, any auto parts store or Amazon. I bought the cheapest I could find. My assumption is that both modules were bad. That the starting circuit on one failed first, then the other. I had the Bullyhawk SoftStart module, so I was routinely starting with just one ignition on - I have separate ignition switches. Link to comment Share on other sites More sharing options...
procharger Posted March 13, 2016 Author Report Share Posted March 13, 2016 Can I just switch the plugs on boxes to see it problem moves to other plugs?? Link to comment Share on other sites More sharing options...
Roger Lee Posted March 13, 2016 Report Share Posted March 13, 2016 If it isn't starting at all switching ignition module wires won't help. Try the ice bag test. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.