Question about 1988 Suzuki GSX-R 250

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Bike wont start

Hey my bike just won't start :( i have checked everything and it's all good it has fuel, a spark to the coils, spark from the coils to the plugs, new plugs, new air filter, strong charge from battery.it turns over but does nothing else. it was running perfect then i bled the brakes went to start it agin and it just wouldnt start. can somebody please help me. its an 88 gsx250r gj72a engine. cheers

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  • cheekycoco May 28, 2009

    it was the compression, the idle screw was up to high so too much air was getting in and not creating a vacum. had to call in the pro's (the motor-cycle doctors) they're fricken awesome took him 20 mins to diagnose a get it started and explained what he was doing along the way. cheers flynow for the help

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I would check for compression on the cylinders. a engine has to have fuel,fire and compression or it wont run. Check the specs to get the operable compression levels.

Posted on May 27, 2009

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I have lost my fob ,and replaced my turn signal module,and antenna security module,now i get power when switch is on and everything works bike will turn over but no fire?


Hi, Richard and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, you need 12.5 volts or better and be able to pass a load test if necessary, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Faulty fuel pump fuse or relay.
11. Security alarm needs a reset.
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Hi, Timmy and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
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Hi I have a Baotian 50cc bt49q 9r. Bike won't start I've cleaned the carb drained old fuel etc, bought a new battery and a new spark plug.CDI might be faulty which I have ordered or the coil pack ?


Hi, Neil and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
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My fzr 600r crancks but wont start what can be the problblem


Hey man, pull the plug wire off to see if there's spark when u crank it - if not then check there's a thin wire with a lug on the coil pack - if wire is on & not damaged then have the coil pack checked

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Why wont my bike start when it gets hot ?....


Hi, Stacey and the usual suspects are:
1. Faulty ignition coil.
2. Faulty spark plug cables.
3. Faulty temperature sensor.
4. Faulty starter motor.
5. Valves adjusted too tight.
6. Spark plug gap too wide.
7. Fuel has vapor lock.
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Fuel pump cycling long time bike won't fire,has good spark.


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
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Feb 14, 2013 | Motorcycles

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Starting and stay running


Hey,

The 'wire to the coil' that you mentioned could be the problem! (They ain't meant to be taken apart.)

You see, these things are built and operate as a unit, and must be replaced as such.....

Go to a bike wreckers (dismantlers) and source yourself another coil and spark plug lead assembly and refit.

Then, as long as you have a good battery, spark at the plug, and fuel, the old thang should fire up and run OK......

Good luck, mate....you've got a groovy little bike there. :oD

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Hey Chad,

The first thing I would do is a compression test. You say you have spark, but have you actually tested the strength of the spark ? A simple check to see if the spark is strong enough is to take the spark plug, hook it up to the spark plug wire, hand hold the shell portion of the plug roughly a 1\2 inch away from the cylinder head, and crank the engine over. If the spark jumps this gap, you have good spark. If it doesn't jump this gap, your ignition coil or stator coils maybe weak and not producing enough voltage for a good spark.

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1 Answer

92 cavalier 4cyc. with coil pack cranks but won,t start checked fire has none


if the car crankes and wont start there are a few things you need to have for it to run. spark fuel and timing. check for spark at plugs. check for fuel preasure and injector pulse. if these are o/k then check engine timing. if everything is o/k then you probably have a major vacume leak.

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