RSV R cutting out when riding!!!!!!

The cutting out could be a faulty ignition kill switch as it's a common fault if the bike's been kept outside as corrosion on the terminals creeps in. Other possibles are incorrectly mounted datatool alarm unit if it has one, faulty side stand switch, faulty spark plug or lead, water in fuel, or simply a loose wiring conenction so you need to investigate further

The crunching noises on start up sound like it could be the sprag clutch is on it's way out i'm sorry to say. Do a search on sprag clutch. Was the bike purchased from a dealer or private sale?

I'm not sure if it can be rescued as i've not had the problem, i think from memory though that it could well be a new kill switch needed if this turns out to be the fault. Try spraying WD40 inside the kill switch and keep pressing the red button a few times to see if the fault is temperarily cured.

The fault with the datatool alarms are they are mounted in such a way that the resonance of the v twin engine causes the alarm unit to throw a wobbly and cuts the bike out at high revs. It may be that they are mounted too tight to the subframe or rear bodywork. For reference my System 3 is mounted in the rear most section of the tail piece under the seat hump and has never given any hassles.

Mileage is not the issue with sprag clutches, it's how the bike's been looked after by the previous owner correctly starting the bike i.e not using the throttle on start up, only the cold start lever and also keeping the battery on charge with an Optimate or similar. It's failure to do this that kills sprag clutches as the low battery voltage causes the starter solenoid to become week and puts excessive strain on the sprag clutch as the engine kicks back when not spun over quick enough

This is why it's said time and time again, keep the bike hooked up to an optimate, replace the standard solenoid with the Yamaha one, part number 4KD-81940-00 and fit a Varta, Yuasa or Bosch YTX14BS or YTZ14S-BS battery.

superninj said:

Hi,

Yes it is kept outside, can the kill switch be rescued by stripping and cleaning?

Yes it has a datatool alarm, but it was proffesionally fitted, what are the faults?

I have heard of the sprag problem, the bike hasn't even done 10K yet!!!

Thanks for the reply

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Hi Dude,


As Mr Legs has pointed out it could be a number of things.

I did have the same kinda problem with mine after i trashed it. To be fair the bike never cut out, the power use to drop and then come back in again especailly under hard accelaration. It turned out it was the Datatool alarm that was causing it. I simply mount the alarm on some foam and didnt tighten it up so tight.

As for the nasty crunching sound ive had it happen about 4-5 times in the 4 years ive owned it :uhoh. Im only hoping its not caused any damage.

The bike is due for a service but gonna leave it till next year now cos the tax is up end of the month and i aint renewing it. I may investigate a little further into the sprag clutch when i get it serviced.


Good luck dude,


Ritch

Are the spark plugs OK?

Sounds like it could be the plugs or possibly a coil breaking down, have the plugs out and see what condition they are in. If in doubt bin them and get some Iridium ones.

I would also go through all your electrical connectors too, just to make sure it isn't a poor connection or loose/dirty battery terminal.

superninj said:

unfortunately a private sale

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On top of all the tips Mr superninj, i'd give the seller a call and just check with him to see if there has been any prior history of the problem, if the bike had been kept outside for long periods of time or left inactive for a long period before the sale. When was the datatool fitted? Doesn't hurt to ask :biggrin

Let us know how you get on and good luck with resolving the problem :thumbup

If the fuel looks cloudy I would recommend you get rid of it, however make sure it's not just cloudy cause of the vibrations from the bike.

Take a sample, put it in a clear glass jar and leave it for a few hours to see if any water settles.

Poor quality fuel would certainly cause your running problems.

Lets see!!!

i know everyone else's advice is better than mine, but i had something of the same problem, i found out it was a loose wire from my #2 coil on my left side. my bike would start up great and then cut out after a minute or so of idiling. even after it was warm, it would still die out.

i am sure its not the cure to your issue, but it doesn't hurt to look at you coils and make sure they are all connected..