Question about 1989 Suzuki GSX 600 F (Katana)

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I have a 89 katana that cuts out at 5000 rpm

The bike cuts out at 5000 rpm when in gear if its in nuetral no problem but no matter what gear im in at that rpm it cuts out but when i go above or below that its fine the rpms drop to zero in the blink of an eye but then shoots right back up once I go above or below 5000 rpm

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  • Suzuki Master
  • 9,098 Answers

The power regulator may be at fault.

  1. GSX 600F Katana - Motorcycle Specs 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 ...

Posted on Jul 14, 2015


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Posted on Jan 02, 2017

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SOURCE: 07 gsxr 600 cuts out at 10,000 rpm drops suddenly

chech side stand swich

Posted on Aug 23, 2009

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SOURCE: 2005 Katana....Idle (warm) slowly goes from 1,100 to 2,000 rpm

There is an air leak letting outside air into the fuel/air mix. This leans the mix and causes the problem you describe. The diagram below shows the likely carb air leak areas; "O" ring seal dried out, clamp seal bad due to loose clamp or hardened manifold rubber, rubber manifold dried out / cracked, the vacuum cap is loose. Other sources are a loose spark plug, bad valves and leaking head gasket.
Can I get a “very helpful” rating on this answer?

Posted on Aug 29, 2009

Testimonial: "Thank you very much. I called the local Suzuki dealer (who just installed an APE Manual Chain Tensioner) and they said it sounded like a vacuum leak. "

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1 Answer

Sputtering at 5000 rpm

AT 5000 RPM? What is the redline on the XT 600? I had a XT 500 Do not remember my year exactly, I was thinking the redline was close to 5000 RPM and if that is the case you could be possibly hitting a REV limiter or floating the valves.
Have you adjusted or checked the Valve clearance lately along with the Timing chain tensioner to be sure all are within adjustment specs?
The example you gave where it does it in 2nd gear, 3rd gear, I am sure it would do it in any gear as it sounds exactly as if teh engine is running up against a rev limiter or mechanical limits of teh valve train.

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hi, if the air filter is oil soaked or DIRTY. these are troublesome, if the oil dries-up (not pulling enough FUEL into the carburetter, too much AIR). if too much oil higher FUEL COSUMPTION or WILL NOT START (WETTING THE SPARK PLUG (S)). gerry

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Possible problem with clutches

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I would say that your bike may be running a little lean. I usually replace the jets on all my bikes as soon as I get them as the emissions requirements mandate that the manufacturers pass stringent emissions tests prior to the dealer selling them. Some bikes wont even idle or run, especially off road bikes from places like California. and in these cases you must re jet it is a must! I even throw away or drill larger holes into my air cleaner cover.

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1992 Suzuki GSX 600 katana stalls when put in first gear

Some bikes have a kickstand safty switch on them if your kickstand is down the bike will shut off in gear.

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1 Answer

My 89 750 won't shift but will run what could it be if it.s not the tranny?

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1 Answer

Fuel filter and how many rpm's should my bike be idleing at

The filter is located on the fuel line half way between the tank and carbs (if it has one as some bikes don't) The Rpm's at idle should be around 900 but can be a little higher or lower for better sound or performance.

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Sounds like possibly a clutch issue, or something inside the trans locking up. Your shift forks would make shifting harder/not go into gear.

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There should be an idle adjustment located behind one of the side fairings, its usually a black dial mounted to the case somewhere low.

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