20 Most Recent 2005 Suzuki RM 250 Questions & Answers

Castrol Syntec motorcycle 10-40wt is what i woul recommend and you have a dipstick. So if you have drained the old fluid start by pouring in 1 qt. then check the dipstick w/ bike level on level ground. Then add a little oil at a time until full..If you have a sightglass instead of a dipstick then fill half to 3/4 up the sightglass. Buy 2qts while your at the store...good Luck to you friend...Tim

Sorry Jay, only Harry Potter could do that but first even he would need the magic phrase. :-)

47mm

On the neck of the frame MOPAR KENNY

20w40 or 20w50 motor oil is just fine. Please, rate my answer. Thanks.

Outer cartridge on the twin chamber Showa fork for an RM250 uses 350ml of 5W oil.

Hi there and welcome to fixya,

Check the throttle cable, there maybe dirt or sand trapped on the cable causing it to be pulled - as preset prior to actual throttling.

Check for the idling knob, check for the air fuel mixture as well. Standard is 2.5 turns out.

Check the jets. Open the carburetor and make sure moving mechanisms are moving normally. The jets should be clean as well.

Hope this helps,
let me know if it doesnt so I can follow it up

Hi,
That 20w-50 is a premium lubricant already, upgrading to synthetic is much costly but much better.
It depends on how you frequently maintained your lubricant changes. If that grade of oil does not make any problem, better stay with it!
Hope that clears your mind!
Thanks for using Fixya!

any transmission oil that is for m/c would do... you just have to pick your brand... i use maxima...

Hi To help you to resolve your problem first check your throttle gaz cable for damage and adjustment.. Same thing with your clutch cable see if those cable are in good shape...Then your carburetor look on the side you will find two srew H. and L. and on the top of your carb you will find another adjustment, this one adjust the gas throttle to your handle if your rpm is to hi it will be imposible to change gear the correct idle is arround 1000 rpm.. for two stroke same think for 4 stroke

32 to 1. That means 4 ounces of two stroke engine oil per gallon of gas. NEVER use motor oil.

it's easy yes. not much can go wrong. i think all that needs replacing is 1 o ring on the piston slide, and mabey a filler cap gaskit.

if you have a look on the wheels, if they are original. there are numbers, it will be DOT then the date. for instance DOT4 8 05 this would mean it was a 06 bike. 03 would be 04 07 would be 08. hope this helps

try about 250-350 cc

You have either a leaking gasket / pipe or a cracked water jacket .try to locate source of leak .

you can use the expensive oil such as silkolene light gear oil or you can use 10w40 semi synthetic car oil. we have used this for 15 years of racing. never had a problem with it. never even had to change a clutch.hope this helps.

hi,drop the oil, remove the right hand casing. undo the water pump casing. remove the impeller (10mm bolt) dont lose the copper/ally washer. draw the drive shaft from the inside of the casing. remove the bearing. remove the seals, keep note which way round the seals are. they should be opposite. one keeps oil in and the other keeps the water out of the oil. if there are any score marks on the drive shaft,replace it , as it will only leak again. to put it back together, just reverse process. hope this helps. kev.

should be 1/2 to 3/4 inch play midway of the sprockets on the bottom. Too tight stretches the chain and too loose falls off.

You might be too rich on the pilot jet. (Too large)
Run it for a minute with the choke on, then shut the choke off, and let it run with just a little thrttle till it's warm. If it doesn't "clear" up, your jetting may be off. (The pilot does idle) Pull the plug to see what color it is. Black is too rich. (Too large of a jet)

also i forgot to add pul the gasket and head in evenly