Suzuki RM-Z 250 - Recent Questions, Troubleshooting & Support - Page 6


You have rust in your gas tank causing the needles to stick open. Check the filter on your fuel petcock or add an additional inline filter. Or you have worn needles in the carburetor. Disassemble clean and replace. You possibly have a malfunctioning vacuum fuel petcock that is bleeding fuel past vacuum diaphragm. Rebuild the vacuum petcock with a K&L rebuild kit or replace it with a new petcock that will also have a new fuel filter on it.

Suzuki RM-Z 250... | Answered on Sep 24, 2010


You red line this bike don't you? The first thing to start going on a cam is the bearings. Change bearings and run the bike for about 30 hours at 1000rpm and let it break in, then change the oil and hit it hard. It will last longer.Might want to look in the crankcase too and see if there is metal shavings there too. You may need to change the rod bearings. But either way you are on the curve of burning up your engine.

2005 Suzuki RM-Z... | Answered on Sep 08, 2010


If the kick starter operates normally the likely cause for a transmission lock up is bent shift forks. The bent forks are trying to engage two speeds at once i.e., 2nd and 3rd at the same time. A broken circlip on a tranny shaft could also cause the dual engagement. If the starter is locked up the problem is likely to be a broken retainer clip. There is a possibility that the cam chain may have broken and is wrapped up on the crank gear. Is there oil in the gearbox? The engine may have seized up do to a lack of lubrication. You can see a diagram of your entire engine at the site below. > Please rate my answer www.babbittsonline.com/pages/parts/viewbybrand/default.aspx

2004 Suzuki RM-Z... | Answered on Sep 02, 2010


You might find a service manual on ebay.com that has a wiring diagram in the book.

2004 Suzuki RM-Z... | Answered on Jul 29, 2010


sounds like the timing has sliped out a bit,,,check it first

2004 Suzuki RM-Z... | Answered on Jul 13, 2010


no dont release any gas
you might lower it a little by unwinding the spring preload, but this will soften the suspension
You will probably need a lowering linkage, which is one of the links between the shock and swing arm.

2004 Suzuki RM-Z... | Answered on Jun 25, 2010


Several things here. Do an oil change, 10w40 motor oil. Run premium gas and install a new NGK spark plug one heat range colder than stock. It sounds like you have an air leak causing a lean fuel mix. Check the carb mount bolts and the intake manifold bolts for tightness. Also set the valve clearances with a cold engine > .002 intake and .003 exhaust. Check for any cylinder head leaks. This would show up as oil on the cooling fins at the base of the cylinder head. Tighten the head bolts if needed.

2004 Suzuki RM-Z... | Answered on Jun 14, 2010


one bolt, look underneath the engine, could be in the middle or off to the side a bit. There is only one drain bolt, with a head size of about 14mm

Suzuki RM-Z 250... | Answered on May 13, 2010


It should build up some pressure, before it overflows as it heats up, perhaps you need a new cap.
If the bike starts and runs ok it probably isnt a head gasket gone

2004 Suzuki RM-Z... | Answered on May 12, 2010


Check the lash of the wrist pin? They do make a clacking noise if too much play is involved

2004 Suzuki RM-Z... | Answered on May 12, 2010


have u checked your top end on it , u might need a new set of rings compression ring might be weak install a pressure gage on it kick start it check your pressure readings should be around 160 if it bleeds off then u need a new rings

2005 Suzuki RM-Z... | Answered on May 10, 2010


One oil filler, check your manual or download one from one of the manual sites on fixya. Quantity is written on crancase generally, or dipstick on filler plug, The oilpump, pumps the oil throughout engine.

2004 Suzuki RM-Z... | Answered on May 07, 2010


use some grease on the threads and lock nuts. Make sure the axle and lock nuts are loose before trying to adjust the bolts.
The bolts really only set the chain and wheel, until the axle is tightened,
grease the axle as well.

2004 Suzuki RM-Z... | Answered on May 07, 2010


hi,no easy answer i,m afraid,you will have to split the engine,before you pull it all aprt check the shift drum selector rawl pins,if one of those has come out,it will not shift up into the next gear,hope this helps...cheers

2005 Suzuki RM-Z... | Answered on May 03, 2010


hi,if your bike is burning the trans fluid,it sounds like one of the seals has not seated properly allowing trans fluid to enter the bottom of the intake/combustion chamber,i am afraid to say it but you will need to pull it apart again and investigate...cheers

2004 Suzuki RM-Z... | Answered on May 01, 2010


http://motocross.transworld.net/1000015179/features/2004-suzuki-rm250/

NGK BR8EG is stock plug, I changed to a NGKB9EGV (comp. racing plug) and noticed better start, slower warm-up but much fuller power band.
The above link gives great details and links for your bike. Cheers.

2004 Suzuki RM-Z... | Answered on Apr 30, 2010


2 things
reed valves are worn out
or low compresion

2005 Suzuki RM-Z... | Answered on Apr 17, 2010


Have the ignition coil checked for they die a slow death. Also the ignition module may have problems as well. They tend to short out when they get warm after awhile. There is no other explanation for this if the bike starts up later as you stated

2005 Suzuki RM-Z... | Answered on Apr 12, 2010


good question ... what is your problem?

What you describe sounds normal ...

2004 Suzuki RM-Z... | Answered on Apr 11, 2010


unscrew the black colored screw, install in the engine side of your bike,,, wipe it with a cloth, reinstall it,, start your bike, for 2 minutes,, unscrew it it tell you the level of oil in your byk

2005 Suzuki RM-Z... | Answered on Apr 09, 2010

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