need help

[crumpy]

If anyone knows about electrical problems I would very much appreciate help my 99 has been running like shit last ride feels like only 2 cylinders working so i cleaned fuel system and spark plugs and noticed 3 yellow wires cotton covered from i would say generator where they join at coupler where melted possibly shorting out so i pulled connecters upart repaired wires and still getting hot each indevidual wire still running like shit any help would be greatfully accepted cheers crumpy.

[Busa Greavett]

Not much experience with motorcycle mechanics but sounds to me like rectifier problems.

Disconnect the three wires from your generator/stator and start the bike. Using a mulitmeter you should have 70v+ on all of the wires, testing from one to another. If that is good, then I would be checking your rectifier. If it's no good, then your generator/stator is dead.

Could be that there is a problem with the voltage in the circuit causing the ECU to misread signals/or even not get the signals it requires to run properly.

could be low voltage or too high voltage....is your battery going flat? Do your headlights seem to be brigher than they were before, is your battery bubbling over.....all symptoms...!!

Thats probabl as far as my advise will get you...but it could lead you in the right direction!!

[Legend]

Your right their the alternator wires (3phase alt).

If you leave them disconnected the bike should run ok, which would eliminate that being the cause of your problem.(your battery wont be getting charged while disconnected)

With this said you want to make sure the battery is fully charged before any testing.

Hope this makes sense and helps.

Leonard.

[crumpy]

Your right their the alternator wires (3phase alt).

If you leave them disconnected the bike should run ok, which would eliminate that being the cause of your problem.(your battery wont be getting charged while disconnected)

With this said you want to make sure the battery is fully charged before any testing.

Hope this makes sense and helps.

Leonard.

thanks guys had battery problems last 2 weeks sounds like regulator is shagged typical suzuki problem of the 70s & 80s why do they have 3 phases all the time only on suzukis.when disconnected 3wires it runs fine.where is regulator situated on bike.

[Gnarbunkle99]

Look at the connector at the rectifier end (take offf tail fairing first) its a known suspect. If you have an IR thermometer($50 for a cheapie), its easy to check all connector points for high resistance.

[Maj]

If the connector is faulty at the rectifier its usually fairly obvious , but i had never thought to use a IR thermometer . have to get one.

[Legend]

Your right their the alternator wires (3phase alt).

If you leave them disconnected the bike should run ok, which would eliminate that being the cause of your problem.(your battery wont be getting charged while disconnected)

With this said you want to make sure the battery is fully charged before any testing.

Hope this makes sense and helps.

Leonard.

thanks guys had battery problems last 2 weeks sounds like regulator is shagged typical suzuki problem of the 70s & 80s why do they have 3 phases all the time only on suzukis.when disconnected 3wires it runs fine.where is regulator situated on bike.

The regulator is under the rear cowling,left hand side. (must remove cowling). Check the connector that plugs into it, may find them burnt.

Leonard.

[gazza414]

IR guns are pretty useless...your fingers are more sensitive


if you must use technology that is beyond the scope here...use thermal imaging

[Gnarbunkle99]

High tension power supply boys use the IR guns in helicopter patrols to do exactly the same thing!

[Gnarbunkle99]

Here is mine, showing a quick check of an electrical connector being overdriven with 3 amperes of current. Net result is the connector begins to overheat due to design ie insufficient contact area and pressure. The early or incipient stage of what happens on our bikes electrics is similar, high resistance causes heating when current flows, eventualy leading to visually obvious cues like burning. A 1 deg celcius temp rise is detected with this animal, definately not with the crusty well used working class fingers shown. Hope this dispels some of the myths.

[crumpy]

If the connector is faulty at the rectifier its usually fairly obvious , but i had never thought to use a IR thermometer . have to get one.

Hey guys funny thing when I connect battery all guages go as if turning key on is that normal ?. but when I disconnect regulator it does not happen any thoughts.

[Legend]

Normal operation!

Leonard.

[crumpy]

thanks guys I got motor running sweet,was 2 iridium spark plugs dead as a maggot still got one generator wire getting very hot really hot any advice greatly appreciated cheers.

[BUSGO]

I'm really glad to hear it was only the plugs causing you the major grief Crumpy.
At least you know how long they are good for now. (I think I wrote in the service book when I fitted them).
Sorry I can't help you with the electrical issue mate.

[crumpy]

I'm really glad to hear it was only the plugs causing you the major grief Crumpy.
At least you know how long they are good for now. (I think I wrote in the service book when I fitted them).
Sorry I can't help you with the electrical issue mate.

New battrey new regulator tightened all connections (possibly why wires getting hot & melted connector ) seems to be running like a busa should.