Tach not working and engine firing erratically
First of all I would like to wish everyone a Happy New Year. I have an 89` model and from time to time I like to log in and read new posts here. Am not much of a mechanic or an electrician but managed through some problems quite well with the help of this site. Now to the problem,recently I was riding and suddenly the tachometer stopped working and the engine lost alot of its power. I immediately turned off the bike and checked for anything unusual. When I tried to restart the bike, it backfired like a boss and ran erratically. Luckily I was not far away from home and managed to drive it back. Now I read some posts here and assuming its an electrical problem and having a few spare parts I did the following. I changed both coils and the ignitor box. Checked the spark plugs and HT cables, voltage on voltmeter looks normal, checked for any loose connections and wiring and all seems ok. I have a good MF gel battery. Problem still there and am running out of ideas. Does any one have any more ideas on what to check?
89` Vulcan 750 - a.k.a HellRaiser
Last edited by malteser66; 01-01-2013 at 08:02 PM.