Suzuki RM-Z 250 - Recent Questions, Troubleshooting & Support - Page 3


Hey mac1567 I am having the same problem what did you do to fix it.

2005 Suzuki RM-Z... | Answered on Sep 17, 2015


The problem is common in 2 stroke watercooled bikes ,what happens is the head gasket leaks and the leaking burnt gases pass the gasket and sneak into the water jacket which highly compresses the cooling system and blows the water past the water pump seals and into the gearbox,mixing with the oil and making a vile mayonnaise mixture,make sure when you fitted the seals you fitted them the right way around the main sealing lips should both face their fluid they are keeping out and the impeller shaft should be free from and scoring or damage where the seals touch it.p.s im a fully qualified motorcycle mechanic with over 20 years experience so im not just guessing at an answer

2004 Suzuki RM-Z... | Answered on Feb 15, 2015


rod bearing or thrown rod

Suzuki RM-Z 250... | Answered on Dec 02, 2014


It dependes on who you ask or which manual, you read but the main names are
counter shaft seal.
or drive axle oil seal
or drive shaft seal,
or sprocket shaft seal

the transmission shaft that the clutch is on is called main axle, the sprocket shaft is called drive axle\counter shaft

2004 Suzuki RM-Z... | Answered on Nov 19, 2014


It sounds like you have a problem with fuel starvation. Check from fuel tank to carburetor. Tank may have sludge in it, shut off valve may have clog or rust, fuel lines when old tend to collapse in on them selves, filters clog or become dirty, and carburetors tend to accumulate dirt, water, clogs, and may need to be rebuilt. Since you are running fairly well, your problem may be small and inexpensive. GOOD LUCK FRIEND.

2012 Suzuki RM-Z... | Answered on Nov 08, 2014


pull the carburetor apart and clean it really well and this should solve your problem

2004 Suzuki RM-Z... | Answered on Aug 19, 2014


check compression.may have a bent valve.

2005 Suzuki RM-Z... | Answered on May 27, 2014


the spark is probly weak-magneto worn or the fuel delivery not rite--purchase a clymer manual-has detailed maintenance for shop mechs

2004 Suzuki RM-Z... | Answered on Feb 24, 2014


see the troubleshooting chart and fix it. God bless you

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2005 Suzuki RM-Z... | Answered on Nov 30, 2013


It's an internal transmission problem. A bent or worn gear shifting fork, or the gear dogs are battered. On the other hand it could be worn clutch teeth sliding, a worn clutch cable or the plates are sticky. Check the clutch plates and adjustments on linkage.

2005 Suzuki RM-Z... | Answered on Nov 30, 2013


Sheared Quarter moon key is has rotated the the magnetic flywheel on the tapered shaft so the timing is off. Remove the left side engine cover and spin off the nut on the out put shaft. You may need a claw puller. You'll find the half key in the shaft is cut in two. Tap it out with a chisel on the end. It's sitting in a curved grove so will tilt up out when tapped on one end. also remove the flat part from the magneto wheel replace the key in the shaft groove with THE right size, and push the magnetic wheel back on strait with the new key. replace the bolt. and reassemble the cover. Start er up. and go.

2005 Suzuki RM-Z... | Answered on Nov 30, 2013


Sounds like the valves are out of adjustment.

2005 Suzuki RM-Z... | Answered on Aug 07, 2013


Carb is not a pump. Carbs depend on suction and pressure to operate. If you are not getting fuel, the fuel pump may not be delivering the fuel to the carb or the carb may not be allowing the fuel in due to a stuck float valve or a dirty jet. I'm leaning toward a dirty jet or bad fuel.

Suzuki RM-Z 250... | Answered on Jul 26, 2013


check the battery with a load test to see if there is a dead cell. go to a battery shop to have this done

2004 Suzuki RM-Z... | Answered on Jul 23, 2013


DOES IT STOP RUNNING BECAUSE OF A FOULED PLUG WHAT RATIO FUEL/OIL ARE YOU RUNNING
40:1 IS A GOOD RATIO NEVER HAD A FAILURE IN 20 YEARS

2005 Suzuki RM-Z... | Answered on May 08, 2013


trail riding d'idnt provided enough air to make you're bike running cooler..and get you're head to warp a little and let pressure in you're cooling system. at least i would try a new gasket and some coolanol coolant to put in after....they get faster heat transfer..also you can put a higher pressure radiator cap that will keep in you're coolant...

2004 Suzuki RM-Z... | Answered on Jan 07, 2013


so here is the answer straight from the manual:

Intake: 0.09 - 0.16 mm (0.004 - 0.006 in)

Exhaust: 0.17 - 0.24 mm (0.006 - 0.009 in)

Suzuki RM-Z 250... | Answered on Dec 12, 2012


sounds like the float is not working properly , could also be the jet. would be a good idea to buy a carb kit, not very expensive and save a lot of grief.

2004 Suzuki RM-Z... | Answered on Nov 07, 2012


this particular year was very unusual because it removed the multiple inputs from magnetos and just went with a single (2 wire) signal coil (green, black) which will ultimatly go into the left side case behind the pull start. the white/blue wire goes directly to the coil. the orange wire goes to the ignition and will have 12 volts when the ignition is powered on, then go to ground with ignition off. the black/white is constant ground. this year was different because the cdi let the regulator do all the converting from ac to dc. it is also one of the haardest years to find a box for used.

Suzuki RM-Z 250... | Answered on Oct 19, 2012


if your having a problem starting it is usually always the valves that need to be set/ reshimmed mech.i also have 06 crf 250

2005 Suzuki RM-Z... | Answered on Oct 15, 2012

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