Rev'd and other overloads - SV650.org

28-01-10, 07:34 AM

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

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.

28-01-10, 09:35 AM

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?

28-01-10, 09:46 AM

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

28-01-10, 12:18 PM

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

Battery terminals loose can also cause this.

29-01-10, 12:12 AM

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

Quote:

Originally Posted by yorkie_chris

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

Quote:

Originally Posted by stroppygob

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

bit of vaseline over the contacts on the battery terminal keeps them in good condition too

28-01-10, 07:34 AM	#1
stroppygob Guest Posts: n/a	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

28-01-10, 09:26 AM	#2
Dave20046 Member Mega Poster Join Date: Jul 2008 Location: Sheffield Posts: 10,274	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. __________________

28-01-10, 09:35 AM	#3
Grinch Guest Posts: n/a	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? Last edited by Grinch; 28-01-10 at 09:38 AM.

28-01-10, 09:46 AM	#4
Grinch Guest Posts: n/a	Re: Rev'd and other overloads Its part number one. The dodgy bit of connection is between bolt 4 and fuse 3 on the left, it tends to rot through.

28-01-10, 12:18 PM	#5
ian505050 Guest Posts: n/a	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.

28-01-10, 12:19 PM	#6
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: Rev'd and other overloads Battery terminals loose can also cause this. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

29-01-10, 12:12 AM	#7
stroppygob Guest Posts: n/a	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.

29-01-10, 09:53 AM	#10
Swin Member Join Date: Mar 2009 Posts: 454	Re: Rev'd and other overloads bit of vaseline over the contacts on the battery terminal keeps them in good condition too