FAQ Register Login |
struggling to start |
Post Reply | Page 12> |
Author | |||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
Posted: 19 Jan 2022 at 11:52 |
||
my rsvr 2002 is struggling to turn over,even though the batteries are staying above 12.0v. i have new plugs in it and fresh fuel E5. it will start first time with a jump start but can i presume its got a poor earth or is the starter motor needing replaced.
|
|||
wigginsjp
Premium Member Joined: 11 Feb 2008 Location: calne Status: Offline Points: 3460 |
Post Options
Thanks(1)
|
||
Worth checking the starter solenoid is a genuine 150amp one and I’d recommend upgrading the starter cables, perhaps along with a battery if it isn’t a high cranking output one from AP workshops as a kit.
|
|||
Aprilia RSVR Factory 2007 V2 1060cc Big Bore
Aprilia RSVR Factory 2004 Race Bike Kawasaki ZX10R 2007 Race Bike Aprilia Tuono V4 1100 Factory 2020 www.apriliaperformance.co.uk www.apworkshops.co.uk |
|||
Bladerunner919
Premium Member Joined: 19 Mar 2020 Location: Bracknell Status: Offline Points: 376 |
Post Options
Thanks(1)
|
||
What is the battery voltage exactly? You really want to be at something like 12.6v rather than just over 12.0.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
i will make a start on these tips, i have owened the bike for about 15 years with 31k on the clock. its never given me any problems in the past.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
426hemi
Premium Member owner of the big bore! Joined: 30 Mar 2012 Location: cannock Status: Offline Points: 5676 |
Post Options
Thanks(1)
|
||
As said it’s worth getting the upgrade kit from ap, the wiring was only Just upto the job when new and the bigger cca battery will protect your starter sprag clutch from kick back which damages them.
|
|||
redratbike
Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16146 |
Post Options
Thanks(1)
|
||
check all earths , clean the starter switch contacts as well, check starter motor connections etc etc
|
|||
www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk |
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
426hemi
Premium Member owner of the big bore! Joined: 30 Mar 2012 Location: cannock Status: Offline Points: 5676 |
Post Options
Thanks(1)
|
||
How old is the battery ? You really need one with over 200cca And do you have an alarm fitted, if you do bin it, you’ll always have a drain as the bikes injected and has an ecu, as has been said clean all the connections including where the negative lead is bolted to the frame on the right hand side.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
Bladerunner919
Premium Member Joined: 19 Mar 2020 Location: Bracknell Status: Offline Points: 376 |
Post Options
Thanks(1)
|
||
Are you checking at the battery with a meter, or looking at the dash reading? If the latter, then you need to test with a multimeter. If you're only seeing 12.0v at the battery using a meter when running, then you have a problem somewhere and you need to start looking for the voltage at coming out of the R/R as a start.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
checked the voltage again while running. dash is 12.8 and dropping to 12.2 when fans kick in. at the battery with multimeter is 13.3 then down to 12.7 when fans kick in.
|
|||
426hemi
Premium Member owner of the big bore! Joined: 30 Mar 2012 Location: cannock Status: Offline Points: 5676 |
Post Options
Thanks(1)
|
||
On the right hand side pretty much underneath where the tank hinges it bolts to the inside of the frame and then down to the engine, just follow the negative lead down. |
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
Stevex
Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1333 |
Post Options
Thanks(1)
|
||
Access to the RR requires taking the seat cowling off, the RR is bolted to the right rear sub frame (on my Gen 1 Tuono...is the RSVR different?).
Check the white connector located between the engine V on the right side and the brown connector at the RR. Disconnect both as an external check wont tell you if the internal connections are good. Both these connectors can melt if the internal contacts are poor. Use a volt meter to check the voltage at the battery terminals with the engine at 4K revs. You should have approx 14v. The oem RRs have a reputation for giving up the ghost; I replaced mine with a Shindengen mosfet item from a Fireblade, FH014AA. This gives you some very good info and was what persuaded me to check out my oem RR even though I'd not got any starting issues at the time. When I checked it my RR was producing low 13 volts at 4k, with the replacement that went up to the low 14v. You should have an absolute minimum of 13.5v, but ideally 14v-14.4v. As already stated above, starter upgrade wiring and solenoid are also a must. This is my replacement: |
|||
People say I don't know Jack Sh1t; but I do, he lives next door.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
ohmygewd
L Plates Joined: 21 Jan 2022 Location: Melb, Australia Status: Offline Points: 9 |
Post Options
Thanks(1)
|
||
Hey mate, I had the same issue on my Gen1 and also in the past, majority of twins (including duc's) require a minimum of 12.7 to start the bikes when cold using a multi meter at the terminals...anything lower and either the starter relay starts to click or you can damage the sprag clutch as the unit tries to fire - i've had my battery at 12.5v and it barely started before 2 days later it failed to start at all (fast click of the starter solenoid). If the bike is able to start and you are measuring less then 14v at idle and under 13.5 @3-4k rpm, it's an indication that the battery is on it's way out if not gone as it's failing to hold charge - start the bike, wait till it reaches 75C or so but not let the fan's come on, shut the bike down and with your multimeter, measure the voltage drop...if it drops quickly, time for a new battery. Now tap the starter but don't fire the motor, what does your voltage say? Under 12.5v? The 160cca battery's are barely enough to start the ape's in good condition during autumn and if your battery drops any voltage due to age, then it's likely damaged and not retaining full charge - yes it will charge up with the battery charger/tender but you may have damaged cells. Majority of aftermarket AGM's and Lithium's are 220+cca l use the Yuasa YTX14H-BS as reference. Good luck!!
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
hi, only getting 12.89v @ 4,000 revs at battery with multimeter. brand new lithium battery was just fitted and i have a power commander on the bike. do i still have a problem or is it down from 14v to 12.89v because of the power commander.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
Stevex
Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1333 |
Post Options
Thanks(0)
|
||
I would suggest your RR needs replacing; at 4K you should be getting 14-14.4v, the PC will make no difference to battery charge. With a lithium battery fitted you don't want it charging over 14.5v.
|
|||
People say I don't know Jack Sh1t; but I do, he lives next door.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
100 quid for a blade r/r ?????
|
|||
Spoonz
Admins Group Joined: 11 Feb 2008 Location: North Devon Status: Offline Points: 10726 |
Post Options
Thanks(1)
|
||
The low voltage reading doesn’t necessarily indicate a drain. If the charging system is only outputting 13v ish then that is all you will get at the battery even with no drain at all. In 90% of instances I can think of on here where voltage is down on a running bike, it’s low charging system output, not drain as a cause.
|
|||
Bladerunner919
Premium Member Joined: 19 Mar 2020 Location: Bracknell Status: Offline Points: 376 |
Post Options
Thanks(1)
|
||
Before you go spending any money on parts, I think you need to do a little more diagnosis. I would start with the output from the stator, as that is the first piece of the charging system. You mention that you have a Haynes manual, so rather than replicate the procedure here, have a look at Charging System Checks in the Electrical System section (section 29 in chapter 9 in my Haynes manual - page 9.18 if you happen to have the same print edition). Under Output Tests it explains how to check the unregualted voltage from the stator. If that is good, then the R/R is a likely culpret, but you can then go on to check the output at the R/R and work from there.
|
|||
raymond wynn
Moto3 racer Joined: 11 Feb 2008 Status: Offline Points: 35 |
Post Options
Thanks(0)
|
||
a bit annoying now that its starting ok,but being drained. i will look into these suggestions
|
|||
Bladerunner919
Premium Member Joined: 19 Mar 2020 Location: Bracknell Status: Offline Points: 376 |
Post Options
Thanks(0)
|
||
In a way it's easier to diagnose the problem with the bike running, so you're in a better position than if it wouldn't start. At least you csan check the stator and RR outputs.
|
|||
Post Reply | Page 12> |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |