Sv650 cuts out at 5000 rpm - 1999 Suzuki SV 650

Question edited for clarity.
Question moved from Suzuki Cars.

It is a known issue

https://www.google.com/search?q=2000+Suzuki+SV650+misfire

..

This is Suzuki standard for a Pointy, sure someone will be along soon to say if Curvy is the same or not. Start at the standard air gap then see how it feels from there.

Front fork oil capacity (each leg) :
490 ml (16.56/17.25 US/Imp oz) for SV650
488 ml (16 .49/17.18 US/Imp oz) for SV650S

Fork oil level :
92 mm (3 .62 in) for SV650
94 mm (3.70 in) for SV650S

what is the answer to this question?

The power regulator may be at fault.

1. GSX 600F Katana - Motorcycle Specs

   www.motorcyclespecs.co.za/model/.../suzuki_gsx600f_katana%2098.ht...Suzuki GSX 600F Katana ... Wet Weight, 229 kg / 504.8 lbs. Fuel Capacity. 20Litres ... The original GSX600F was launched in 1988 as a sportsbike. At that time ...

If you can actually hear the engine race up to 5000 RPM you may have a serious problem. But more then likely you cant actually hear the engine rev up. If this is the case I would suspect a bad Tachometer ground wire.

You are hitting the rev limiter top range, which cuts off your ignition.

I have a 2001 Grand Cherokee and the problem drives me crazy, but it is the way the car is designed- as soon as you hit the rev limit, it shuts down ignition and your jeep will "buck" - a real pain when you are trying to accelerate into traffic!

You have the 4.0L straight six engine, yes?

If so, please take my advice and learn to live with the minor annoyance of the rev limiter- that engine is IMHO the best Chrysler ever made (nearly "bulletproof"!) and it was so reliable you cannot even get it in a jeep now! For decades, that engine was used in welders, tractors, generators...and yes, jeeps... and it is a favorite among mechanics for its durability!

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There is a fuel cutoff set by the cars computer that limits the RPM's of the engine to prevent engine damage. If its cutting out below say 5000 rpm, then theres a problem. The check engine light being on steady means one of the sensors detected something the computer doesnt like. Get the car to a good mechanic to scan the light and retrieve the trouble code. That will tell you what the problem is. Some auto parts stores, like Auto Zone, will scan the light for free.

That could happen from something as simple as an overdue air filter, bad plugs, or, unless you know it to be fresh, a failing timing belt, which could destroy your engine which I think is an 'interference' type that can have valves and pistons occupying the same space at the same time if the cam gets out of time.