20 Most Recent 1986 Suzuki GSX 750 ES Questions & Answers

it probably isnt a firing order problem, or it probably wouldnt run

one coil fires 1 & 4 cylnder, the other coil fires 2 & 3 cylnders, as the pick up gets its signal from the crank, it sends a spark to each cylnder on the exhaust stroke as well as the compression stroke, ignition timing also doesent change as it is electronic and cant drift out like when points wear.
a short in the ingnition or kill switch can occasionally cause a backfire
Backfire can also be caused by
lean mixture, dirty carbs, loose carb clamps
leaking inlet or exhaust flanges and gaskets
tight valve clearances, burnt valves

make sure everthing is clean and tight, good air filter and exhaust, check valve clearances ,and give it a compression test, check the valve timing, incase it has been assembled wrong,(they rarely jump a tooth unless the chain and tensioner are completely stuffed)

Not sure exactly what you mean .. On older Suzuki's you set the valve clearance with the valve lobe pointing directly up on compression stroke (lobe has just pushed the valve down).

Hope this helps

should be the same tank. Model letters in earlier years depic syling additions. GS1150 E GS1150ES only difference was upper/lower farings etc.

I refuse to answer this as you could be using a stolen bike

I got a Suzuki lt 50 it starts fine drives fine at low speed then when I go over half throttle it bogs down I've cleaned the spart plug cleaned the carb and cleaned the jets but its still doin it any ideas please ??

GSXR 750 '92 spec is oil cooled ( If you look at the front of the motor you will see a narrow slightly curved radiator that's the oil cooler) The water cooled bikes have a radiator cap at front right side of the fairing. If you cant find a radiator cap it's definately oil cooled. Safe Riding!

try charging battery or jumping it , might need a battery

Check that the side stand is up. There is a safety switch to make sure you don't take off with it down. If it is up already, the switch on the side stand is faulty and needs to be replaced.

Tyre pressures 1st. Chain tension and lubed. Engine oil level. Coolant level(if you have it) All your lights and indictators. Clutch and brake lever operation. Throttle is operating smoothly.Brakes and then brakes again.This all takes less then 10 minutes and makes for a nice ride day.Hope this helps

if they havnt been interfered with,i would leave them alone.

Is the clutch working and cable adjusted. ?

the EX is just a designation that the bike was an "E" model which has no other meaning and the X designates an Export version, hence EX. I owned this very same bike, i drove it 20 years and never had a single problem except the alternator stator going out, which is its only weak spot, never let the battery run down, replace the battery every year is my best advice, the idle speed is 1000-1100 rpm hot engine, you can buy used factory manuals (the only manual worth buying) for this on ebay if u just keep an eye out, reviews are avail from Cycle World archives.

Check your spark plug and if wet then you are getting too much fuel into the combustion chamber. Now if it is not wet then it may be a case of not enough gas as when you drop down in gears the engine has to rev at higher rpm and hence need more gas. Hope this helps.

Check the stater it may need replacing. check timing, check plugs, clean carb jets, check air filters of breather box, check petcock of fuel tank. add fuel filter to see fuel flow. check floats in carb. check igniton plate, coil wires and plugs.

Si jodance

Behind the radiator on the left side. It is the device with cooling fins, even though the electronic parts are embedded in rubber paste.The location isn't ideal and sudden defects leave people stranded so what people do is relocate the regulator/rectifier to a cooler place. Perhaps to the air inlet, under the air filter. Follow the three, mostly, yellow cables that originate from the stator when you don't find it behind the radiator.

What do you mean by "Midway"? How old is this motorbike? What exactly did you do to clean the carburettor? Is it a new spark plug and a new, clean air filter? Did you empty the fuel tank to remove the fuel tap to clean the filter on the inside of the tap? Is it doing anything else? Things like - is it hard to start, has heavier exhaust smoke or it has a rough and uneven idle.

A broken timing chain is the most likely cause, the piston is hitting an open valve, or you have a dropped valve or a stuck valve. Another possibility is something jamming behind behind the side covers.The key would be how you discovered this? Driving along at 105 and the engine stopped, or ???https://www.google.com/search?q=2009+suzuki+boulevard+timing+chain+or+timing+belt....

You can't, the computerized system is in place to stop exactly what you are trying to do, Steal the bike without the correct credentials. You can't reprogram or over-ride the computer. You need a bike electrician.

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