Reverse polarity help

CAG or Spartakus should jump in here. I believe that was the problem we found with Dan's bike.....

Heading home now to look for it! Thanks

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I looked everywhere under the seat and couldn't find a second diode. Is that schematic for a F4 1000 Senna? The bike will only push start no electric start. I have also replace the starter solenoid and starter relay.

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I'm not sure if the Senna has the second diode. I've been through the whole MY06 1000R and 07 312R wiring loom and can't remember seeing one, I might be wrong though.
The bike that Chuck helped Carl and Daniel with was a 1000S, that was impressive, worth checking out http://www.mvagusta.net/forum/showthread.php?t=67185&page=2 .
I just checked again on both my bikes wiring and can't see that diode at all.

I suggest you look towards recharging that battery again, make sure you connected ALL the wires back into the right place. Did you replace the diode at the starter relay ?

Wow. Good to know about the second diod. Never knew.

Mine is the 07 1000 Senna....I did read that thread but with mine everything fires up, fuel pump primes, guages work, just no starter. When pushed it runs perfectly. Battery is perfect, diode replaced, starter solenoid replaced, and relay replaced.

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gotojoe said:

Hi,

I went to manuals and 750 electrical system and that's where i obtained that information. It is a part of the wiring diagram.

I don't know the 750 as i have a 1000 312R, Maybe someone with a 750 could chime in. The diode could be under the outer insulation of the bundle coming from the general feed relay which I am guessing is the one on the right side of the bike under the tail/seat unit.

Have you got a multi-meter ?

Use one to check through the starter circuit

Best of luck !

joe

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It's a 1000 Joe, halloooo......

tmiked said:

Mine is the 07 1000 Senna....I did read that thread but with mine everything fires up, fuel pump primes, guages work, just no starter. When pushed it runs perfectly. Battery is perfect, diode replaced, starter solenoid replaced, and relay replaced.

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Click to expand...

If the bikes runs when pushed, then it's not any of the safety switches, it can only be your battery, starter solenoid or the actual start button.
Are you sure you installed the diode the right way round ?
Can you get a meter onto that diode to see if the diode is still fine?
When the bike runs after you push started it, no battery light coming on ?
Double check the 40A fuse, I know, again. Remember one fuse is a spare, the other is the operating one.
Did you check the fuses on the R/H side of the bike?

I have done all of that including a new MV solenoid, except replacing the switch, no battery light when running. Tomorrow I'll recheck the diode and fuses and work on the switch. .. Again

For the record
I hate electrical issues. .....

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We all hate electrical issue's mate, and it's even harder to try and solve them over the internet. Good luck, sounds like it's going to be a long weekend.

Check start switch and starter.

Looking at the wiring diagrams for the three versions of the 1000, the 1000S has the second diode across the General Relay (the diode looks like a wire to the uninitiated), the 2006(7?) Senna has a diode across two wires in the Starteer Relay, and the 2007(8?) 312R has a simialr set up to the Senna WITHOUT the diode across the Starter Relay.

Curious.

silentservice703 said:

Looking at the wiring diagrams for the three versions of the 1000, the 1000S has the second diode across the General Relay (the diode looks like a wire to the uninitiated), the 2006(7?) Senna has a diode across two wires in the Starter Relay, and the 2007(8?) 312R has a similar set up to the Senna WITHOUT the diode across the Starter Relay.

Curious.

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the results of electronic fucktards designing things Chuck

:jerkoff:

Chuck;
maybe the manuals are wrong:naughty::naughty:

like thats never happened:jsm:

silentservice703 said:

Looking at the wiring diagrams for the three versions of the 1000, the 1000S has the second diode across the General Relay (the diode looks like a wire to the uninitiated), the 2006(7?) Senna has a diode across two wires in the Starteer Relay, and the 2007(8?) 312R has a simialr set up to the Senna WITHOUT the diode across the Starter Relay.

Curious.

Click to expand...

Spot on Chuck, I've noticed this before and asked the question, but nobody came back with an answer. I got a wiring harness from the UK which was supposed to be from a 07 1000R and this has a diode on the relay as is the case with my 06 1000R harness.
When I however modified the UK harness, I found the wiring colours to match those of a 312R as per manuals. I assume that the diode was left out on the drawing as Noel suggests.
Next time you fiddle with that beast of yours, please check and let us know if possible please ?

Only diode on mine is on the starter relay, starter works when given 12v directly. Starter switch is the next trial. .....

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tmiked said:

Only diode on mine is on the starter relay, starter works when given 12v directly. Starter switch is the next trial. .....

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If you can't hear the relay kicking in, that's the next thing I'd check.

Donsy said:

Spot on Chuck, I've noticed this before and asked the question, but nobody came back with an answer. I got a wiring harness from the UK which was supposed to be from a 07 1000R and this has a diode on the relay as is the case with my 06 1000R harness.
When I however modified the UK harness, I found the wiring colours to match those of a 312R as per manuals. I assume that the diode was left out on the drawing as Noel suggests.
Next time you fiddle with that beast of yours, please check and let us know if possible please ?

Click to expand...

I'll let you know...but don't hold your breath. My 312R is the last bike to come out of the trailer which still has 6" of snow around it and there's a winter storm coming mid-week...It'll be August before I see my Agustas at this rate.:bawling: