Top 20 1992 Suzuki GSF 400 Bandit Questions & Answers

your cdi should be under the tank

if you have an volt meter you can check on the batterie ,if he loads.you chould have somwhere 13 a 14 volt.start your bike and set,voltmeter on positif red and negatif black you chould read 14.2 vthen trottle up little and the number chould go higher.when you read ,14.9 means he overload.in that case your regulator.engine turning,rough because sparkplug dont get the right amount voltage.so the piston will not go strong down by weak spark.and then it will go not,go up strong.was the new batterie reddy for use.

Rent or buy a vacuum pump and check for leaks

you need to buy a new regulater/rectifier ,dont ride the bike like this as it will cause more electrical problems and posibly fry your cdi

check the jets and needles i had same issues,and air cleaner if dirty clean and /or replace with k

check for burnt out solenoid. They can be purchased at any automotive store, you dont need to spend the extra cash on OEM

It will be a lot of trial and error testing I am afraid, this is a problem that needs to be traced out to find the source of the short.

yes i would definitely try the coil if it has an electronic ignition.

if clutch actss fine in first and doesnt shutter, 2nd is shuttering than possiblely the teeth on the internal transmission gear is chipped or broken.see a dealer/mechanic

hi buddy on my bike i had this problem when you rev it it will rev down gradually so it changed the jets and ir worked so try this buddy then get back to me give me a good rating

When you want to change jets for more fuel.. they actually come in Jet Kits. you can try different sizes but will have to change 3 knobs for proper mixture of gas/air ratio. The knob adjustments you just have to try one at a time for proper adjustment and only turn 1 knob 1/4 turn at a time. Tightening the knob makes less gas flow and loosening allows more gas. the three knobs are for 3 different ranges of RPMs. there is a low mixture knob, mid range knob, and high rpms knob. for example if your RPMs at idle through 5k RPMs are boggy, you can try a 1/4 turn and if it gets worse do a half turn back and ride again. do this off the street where you won't disturb traffic. it takes a while to get it running properly mixed.

Please visit this site for the brake calipers
http://www.motorcyclistonline.com/caliperclean/index.html
and for the indicator check if the bulbs to tht side are of the same watts..e.g 12V x 21wt.
Hope this helps!

as you have replaced carbs you will need to retune for fuel intake also check its getting enough air ie.. air filter has been changed or is clogged

You have an air leak after the carburetor. Old, cracked rubber fittings between carb and cylinder will let air into the manifold causing a lean fuel/air mixture. Same is true of "O" rings and gaskets. If there is a leak in the head gasket that will lean the mix also. Fix the air leaks and you fix the problem.

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Check the condition of the petcock (Valve) in the tank, open it up off of the bike. does fuel run out freely? if not take it out of the tank and service it , some have screens to trap debris. these can gum up wth debris and varnish from old gas.

Hope this is of some help.
Ed

Sounds simple but believe me. it is nothing but a horror story if attempted. Seek out the professional for this one! Smiles!

I would disconnect the regulator so it does not charge the battery. Now... monitor the battery voltage... try starter, horn, lights, flashers... battery going down ? No fire/smoke/smells ? Re-connect regulator and check again. Regulator should charge battery @ 15volts MAX !!

One coil works #1 and #3 cylinder and the other one works #2 and #4, it could be a bad coil or fouled plugs on the dead cylinders.

yes...

i had similar problem when i took my battery off and disturbed a wire that is crutial in the circuit when running the bike with sidestand down so check you havent pulled the wires as on mine no neutral light was showing until i found i'd pulled a wire by accident