no spark AGAIN on trail 90 honda?

I

imported_G B

New member
Yes, a battery will solve your problem. On many of those small bikes (I can't say for yours) the battery is sometimes used just to blow the horn, flash directionals, and light the brake light. Those functions require an instant surge of power the the charging system is just not capable of providing. Therefore, the designers used a battery in the system, the battery has the stored energy to instantly meet the extra demand.
 
ok i recently asked about no spark on a honda 90 and got a good answer i think. i replaced the batt with a couple of capacitors and it ran great. but it stalls when the lights are turned on. checked wiring and repaired shorted wires. now it will turn on the head lamp barely(it glows orange) and will stall the engine still. i figured once its running the generator would put out enough to run the lights and ign with just a fat capacitor but it dies every time and barely heats up the lamp filament. would a battery solve this issue( seems like it wouldn't if the thing can't generate the power anyways) or is it a sign of bad windings maybe? whats really weird is that it stalls even when the lights are off but the switch is in the lights on position. my volt meter reads about 8 volts until the ign switch is moved to the lights on position and then goes to almost 0 even though the lights are not actually connected and putting it under load(that i can tell). again i am confused. help please?!
 
Yes, a battery will solve your problem. On many of those small bikes (I can't say for yours) the battery is sometimes used just to blow the horn, flash directionals, and light the brake light. Those functions require an instant surge of power the the charging system is just not capable of providing. Therefore, the designers used a battery in the system, the battery has the stored energy to instantly meet the extra demand.
 
The electrolytic capacitor is a good idea on a bike with a healthy alternator. i have made them work on '90s era DR650s and a whole slew of brit bikes. But the charging systems on most trail 90's are so marginal, I can see why you are having problems. In my experience, a healthy electrical system is a rare bird. I sometimes rely on an almost total-loss ignition, with frequent battery charges. The parts are too expensive and hard to come by to make it really worth my while. I would rather try to keep an MZ TS250 on the road, which is saying something.

The Trail 90 is a cool bike, but I have to continually fight the temptation to turn mine into planters. They look really good in front of the house with flower pots on them.
 
Yes, a battery will solve your problem. On many of those small bikes (I can't say for yours) the battery is sometimes used just to blow the horn, flash directionals, and light the brake light. Those functions require an instant surge of power the the charging system is just not capable of providing. Therefore, the designers used a battery in the system, the battery has the stored energy to instantly meet the extra demand.
 
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