20 Most Recent 1989 Suzuki Rg 250 Questions & Answers

The timing cant change unless the flywheel key has sheared.
Electronic ignition has no wearing parts like points, so it cant go out of time

manual !!!! clymer manual are best my bible!!!

probably the ignition coil or module, when it shuts down immediately check for spark, if there is no spark that's where your problem lies. if there is spark then chances are it's a fuel problem, and your fuel solenoid (if it has one) could be faulty, when it heats up it shuts the fuel off.
good luck

This would be the spot to look:
www.onlinefreeebooks.net/automotive-machinery.../suzuki/

give me the year and i can help you

Some manufacturers use a hybrid cooling method where engine oil is circulated between the engine case and a small radiator. Here the oil doubles as cooling liquid, prompting the name "oil-cooling." Suzuki has produced many "oil-cooled" motorcycles.

sounds like a faulty battery to me, the headlamp is taking all the power and not leaving any to power the ignition system.

Check your Thermostat

what kind of bike are we working on?? the avg temp for the elec fan to turn onis around the 220 mark. the best thing to do here is bench test the bike start it up and let it idle, put a fan that moves air in front of the bike, this will help to keep things cool while the bike heats up i know it kinda back-@ssward but do it. a inferred temp gun will help you get the temp, you can pick one up at your local auto parts store. check the temp near the senser for the fan and the radiator itself. keeping a GOOD oil, clean oil in your bike that will help with the cooling as well. If your running a bike with a fuel filter ( If your not GET ONE ) make sure its clean. Bikes with fuel pump, you a two types in tank and external, your in tanks pumps should have a filter on them in the tank, over time they get clogged like a inline filter and can cause poor running as well.
If everything is working as it should you'll need to look into your coils. Heat causes resistance, resistance causes heat and heat causes wires to break down and contact points to to weaken. Coils take alot of abuse when it comes to electricity, it doesn't always happen but it does. coils go out and tire wear odd sometimes.
I hope this helps you out if you need any more help please feel free to contact me
Fix it right Ride it FAST
M.Woodring

There are several sizuki bandits...suggest adding the the model number...must of the inline 4 cylinders should have at least 4 spark plugs.

UNLESS YOU BUY THE TECH MANUAL YOU WILL HAVE TO GO ON LINE AND LOOK UP TORQ SPECS FOR METRIC BOLTS I DON'T KNOW OF ANY DEALER THAT WILL FURNISH THESE SPECS ON LINE
UNLESS YOU GO TO A DEALER AND TALK TO ONE OF THE MECHANICS

Adjust the idle to correct RPM say 900 or so.

check for bad grounds

Plug gap 26thou or 0.7mm
Valve gaps usually 8thou inlet and 12thou exhaust at TDC.

You never EVER connect anything directly to the generator, you connect it to the battery. On the light the black wire is the ground - connect it directly to the frame;the red one you connect it to the plus+ of the battery. Ideally you should put a simple switch on it to prevent constant use.

two stroke gearbox oil, or four stroke engine oil,both are designed for use in the gearbox. has to state for motorcycle use on the label, as car oils can have friction modifiers that cause clutch slip, and dont be fooled into using automatic transmission fluid, some swear by it cause its thinner and good for the clutch , but the gears will wear faster, and eventually break.

No not really because you can easly damage something,if you have a spare crankshaft nut then undo the crank nut till its level with the end of the thread ,then using a piece of hardwood over the end give it a sharp knock with a big hammer ,if that doesnt shift it then get a puller sorry i couldnt be any more help but some of these things are not designed to be attacked by hairy backed idiots like myself

If you have converted to a pull starter than no you do not need the starter motor

it will move up and down as necessary to keep the fuel level in check.also it has to move up and down to open and close the float valve

clean air filter, and clean carb with spray cleaner.make sure carb choke is free to move.look for vacuum lines off or stopped up. if trash is in the carb just draining it might not be enough,you may need to clean the jets or float needle valves too.