Pointy not firing on rear.
 

My 2006 SV650S lost power whilst driving in dry weather. Revs seem just as responsive but power is very lagged, inciting that one of the cylinders wasn't trying.

I was testing the spark plugs for sparks just in case one was wet, and it turns out the rear plug (when sat on the bike) doesn't spark, regardless of what spark plug is in the socket (i.e. the plugs themselves work), so I presume it's something to do with the bike's electrics not provoking a spark?

What to do next? The FI light is constantly on.

Re: Help Allan- In real-time!
 

Until someone else with more knowledge comes along, could it be the coil thats at fault?

I think you can swap these over front to back and see if the problem follows it.

If it doesn't follow the swapover, at least you know your plugs and coils are ok and you then need to look elsewhere.

Hope this helps.

Re: Help Allan- In real-time!
 

could be a simple case of the coil connector is loose or you have pulled the cap of the HT but still attached.

stick the bike in dealer mode and see what the fault code is.

Re: Help Allan- In real-time!
 

Thanks guys. Is the coil the rubber bit which attaches to the plug?

What is the HT?

Re: Help Allan- In real-time!
 

And what is "dealer mode"?

Re: Help Allan- In real-time!
 

Stupid question- I googled it and checked the coils. They both work, what next?

Thanks guys. Still interested to know what HT stands for?

Re: Help Allan- In real-time!
 

Yes its the bit on the HT lead - HT= High Tension which = High Voltage

http://en.wikipedia.org/wiki/Ignition_coil

and

http://en.wikipedia.org/wiki/High_tension_leads

The coils could be ok and it could be one of the HT leads - so this is a 2 stage testing process, first the coils, then the leads.

How to take them apart I dont know.

Dealer mode is connecting certain pins on the ECU so that it displays diagnostic codes on the dash, don't know how to do that, but suggest a search on here.

Re: Help Allan- In real-time!
 

Dealer mode - http://forums.sv650.org/showthread.p...ht=dealer+mode

Post 2 Pic 8.

Re: Help Allan- In real-time!
 

I've made my very own special "Dealer Mode Tool" but am not getting the reciprocative dash indications?

Re: Help Allan- In real-time!
 

I made the tool and put it in the adjoining holes (indicated in the picture). Make sure the tool has both positive and negative wires twisted together at each end and isn't touching the frame once inserted into the module. Ignition off before insertion. Then ignition on to give the code. That worked for me.