STVA and discs knackered - repair? - SV650.org

Red ones · 31-05-13, 12:52 PM

After 95,000+ miles I think I have worn my SK5 out!

This years list of repairs:
COMPLETED (wasted money I think)
Clutch adjuster and cable
Front tyre

TO DO
STVA has failed
Front discs

I hear the first item is megabucks, the 2nd item is c.£340.

jambo · 31-05-13, 01:01 PM

I suppose if you want to buy brand new parts, at full retail money then things become rather expensive.

I'm assuming the STVA is the throttle body secondary valve motor. 2nd hand throttle bodies aren't that dear.

95,000 miles to a set of discs is pretty good going, and at £340 a pair I think the OE ones are pretty well priced. However, there are other companies selling new discs, and people on here sell wheels and discs with lots of life left in them on a regular basis for sensible money.

Jambo

31-05-13, 02:36 PM

+1 Red one,

STVA - Secondary throttle valve assembly?
If thats the case buy one of these:
ebay link

As for the discs:
ebay link 2

There you go, £240 all in and the bikes hunky dory once again

31-05-13, 02:37 PM

In fact RUNAKO has a set of discs available at £80...
http://forums.sv650.org/showthread.php?t=198954

yorkie_chris · 31-05-13, 02:38 PM

Second hand bits, job jobbed.

Most of the bikes that get broken have 30k on them... this gives you 60k more miles

squirrel_hunter · 31-05-13, 04:58 PM

Its not dead, just resting for a bit. The throttle bank from eBay and the discs from Runako are good value. Plus an afternoon to fit them and back on the road you are to clock up some more miles.

Red ones · 01-06-13, 12:32 PM

It may well be resting.

Early this morning it was apart again. The STVA seems fine, but I now have a C29 fault and have found I have only 2.4Vas a sensor input voltage. So I'm guessing I have a short somewhere. I pulled the ECM connector off but there is nothing odd there.

Strange how all this started after I removed the airbox a few days again though. Being trying to trace the Red and Black/Brown wires but haven't found anything odd yet.

Bibio · 01-06-13, 12:57 PM

have you checked all the rubber hoses and bungs. after 95k i would expect some to be a bit past it. pay attention to the bungs under the TB's as they like to perish and let air in. also check the crank case ventilation valve in the air box to see if it's gummed up.

ooohhhh and the TPS can read fine but in fact is fubar

Red ones · 01-06-13, 04:59 PM

Would replacing the TPS be likely to resolve this issue? When the engine is behaving itself it doesn't matter how much I try to adjust the TPS I still get _C00, or it stalls!

Bibio · 01-06-13, 05:03 PM

remember you have to adjust the tickover at the same time to keep the bike from stalling.

move the TPS and bike revs drop so increase tickover etc.etc

31-05-13, 12:52 PM	#1
Red ones Member Mega Poster Join Date: Jul 2003 Location: Hertfordshire Posts: 1,422	STVA and discs knackered - repair? After 95,000+ miles I think I have worn my SK5 out! This years list of repairs: COMPLETED (wasted money I think) Clutch adjuster and cable Front tyre TO DO STVA has failed Front discs I hear the first item is megabucks, the 2nd item is c.£340. Last edited by Red ones; 01-06-13 at 12:29 PM.

31-05-13, 01:01 PM	#2
jambo Member Mega Poster Join Date: Aug 2003 Location: Croydonia Posts: 5,376	Re: ****. I think it's dead I suppose if you want to buy brand new parts, at full retail money then things become rather expensive. I'm assuming the STVA is the throttle body secondary valve motor. 2nd hand throttle bodies aren't that dear. 95,000 miles to a set of discs is pretty good going, and at £340 a pair I think the OE ones are pretty well priced. However, there are other companies selling new discs, and people on here sell wheels and discs with lots of life left in them on a regular basis for sensible money. Jambo __________________ Modern motorcycles are bloody brilliant, enjoy it while we can

31-05-13, 02:36 PM	#3
Owenski Guest Posts: n/a	Re: ****. I think it's dead +1 Red one, STVA - Secondary throttle valve assembly? If thats the case buy one of these: ebay link As for the discs: ebay link 2 There you go, £240 all in and the bikes hunky dory once again

31-05-13, 02:37 PM	#4
Owenski Guest Posts: n/a	Re: ****. I think it's dead In fact RUNAKO has a set of discs available at £80... http://forums.sv650.org/showthread.php?t=198954

31-05-13, 02:38 PM	#5
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: ****. I think it's dead Second hand bits, job jobbed. Most of the bikes that get broken have 30k on them... this gives you 60k more miles __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

31-05-13, 04:58 PM	#6
squirrel_hunter Member Mega Poster Join Date: Apr 2005 Location: Sunny Swindon Posts: 3,579	Re: ****. I think it's dead Its not dead, just resting for a bit. The throttle bank from eBay and the discs from Runako are good value. Plus an afternoon to fit them and back on the road you are to clock up some more miles. __________________ "A little enthusiastic?" May I add here, GG is awesome and I think I am in love with Stretchie...he rocks my world! SH2 \| 2MA \| GROM \| YSR

01-06-13, 12:32 PM	#7
Red ones Member Mega Poster Join Date: Jul 2003 Location: Hertfordshire Posts: 1,422	Re: ****. I think it's dead It may well be resting. Early this morning it was apart again. The STVA seems fine, but I now have a C29 fault and have found I have only 2.4Vas a sensor input voltage. So I'm guessing I have a short somewhere. I pulled the ECM connector off but there is nothing odd there. Strange how all this started after I removed the airbox a few days again though. Being trying to trace the Red and Black/Brown wires but haven't found anything odd yet. Last edited by Red ones; 01-06-13 at 12:34 PM.

01-06-13, 12:57 PM	#8
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: ****. I think it's dead have you checked all the rubber hoses and bungs. after 95k i would expect some to be a bit past it. pay attention to the bungs under the TB's as they like to perish and let air in. also check the crank case ventilation valve in the air box to see if it's gummed up. ooohhhh and the TPS can read fine but in fact is fubar Last edited by Bibio; 01-06-13 at 01:00 PM.

01-06-13, 04:59 PM	#9
Red ones Member Mega Poster Join Date: Jul 2003 Location: Hertfordshire Posts: 1,422	Re: STVA and discs knackered - repair? Would replacing the TPS be likely to resolve this issue? When the engine is behaving itself it doesn't matter how much I try to adjust the TPS I still get _C00, or it stalls!

01-06-13, 05:03 PM	#10
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: STVA and discs knackered - repair? remember you have to adjust the tickover at the same time to keep the bike from stalling. move the TPS and bike revs drop so increase tickover etc.etc

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