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-   -   Rev'd and other overloads (http://forums.sv650.org/showthread.php?t=145810)

stroppygob 28-01-10 07:34 AM

Rev'd and other overloads
 
Great new problem with my SV, be nice if someone could offer help here!

Yesterday it started "random rev counting", where the rev counter would shoot over to the high side while the revs stayed the same. Quite frighteningly so did the speedo, but without any increased speed! Oh, and the petrol light came on with plenty of gas in the tank, all at the same time.

Anyone who can help me with advice and information earns my undying gratitude. (Or is it a trip to the nice repair people? Again.)

Only mods on the bike are new halogen front indicators, the rest id a bog standard 1999 SV.

Cheers m'dears!

Taff

Dave20046 28-01-10 09:26 AM

Re: Rev'd and other overloads
 
Sounds like your electrics are on the way out. Bad earth? Reg/rec on it's way out?
Check you connector blocks and battery & solenoid terminals. If you have a haynes manual or can find something on the net do a test on your regulator rectifier with a multimeter.

Grinch 28-01-10 09:35 AM

Re: Rev'd and other overloads
 
The Curvys get the feed for the rev counter from the front coil. If the connection is loose or bad then you get all sorts of strange things going on. But as its the speedo and fuel lights to this is a sign that the starter relay maybe breaking down, or the thin bit of metal that does the feed for the 30amp fuse in it has final gone green and rusted through.

Front coil is on the left side of the bike under the tank and air filter, bolted to the frame.
Starter relay is on the right side behind the saddle shutters (black triangles) take it off and have a good look at it. Its got a 'yellow' cover and two thick wires into it, one is the live feed from the battery and the other is the earth. Slotted in to the top is the feed to the rest of the bikes electrics. The 30amp fuse on its left is the live the other is a spare.

Where is your location?

Grinch 28-01-10 09:46 AM

Re: Rev'd and other overloads
 
http://www.alpha-sports.com/spst/1999%20SV650,S/16.gif

Its part number one. The dodgy bit of connection is between bolt 4 and fuse 3 on the left, it tends to rot through.

ian505050 28-01-10 12:18 PM

Re: Rev'd and other overloads
 
i had exactly the same problem withh my 2002 curvey with 20k on clocks. It only happened every few days for a minute or so. I just lived with it.

yorkie_chris 28-01-10 12:19 PM

Re: Rev'd and other overloads
 
Battery terminals loose can also cause this.

stroppygob 29-01-10 12:12 AM

Re: Rev'd and other overloads
 
Many thanks my friends, electricals aren't my strong point (what is?) so it'll be more money for my garage mates. :(


Grinch, I'm in Canberra.

Sid Squid 29-01-10 07:33 AM

Re: Rev'd and other overloads
 
Quote:

Originally Posted by yorkie_chris (Post 2163544)
Battery terminals loose can also cause this.

This is the sort of thing I'd be looking at first - sounds as if something is loose.

Dave20046 29-01-10 09:20 AM

Re: Rev'd and other overloads
 
Quote:

Originally Posted by stroppygob (Post 2164296)
Many thanks my friends, electricals aren't my strong point (what is?) so it'll be more money for my garage mates. :(


Grinch, I'm in Canberra.

Battery terminals aren't hard to check it's literally a case of a few bolts removing the seat then checking the metal's got a good contact and the bolts are tightened down properly.

Swin 29-01-10 09:53 AM

Re: Rev'd and other overloads
 
bit of vaseline over the contacts on the battery terminal keeps them in good condition too


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