2003 RM 250 Jetting Questions

[Mihylo33]

I'll definitely get some yamalube, i used to run it in my KTM and liked it. I had heard good things about amsoil so i thought id give it a try.

My favorite all time oil was suzuki ccs bit they don't make it anymore. Same goes for Kawasaki premix oil though they still make it. The zooks love the basic oils at stock mixing ratios. Always follow the manufacturers specs.

 

[jackson409]

Didnt even know you could adjust that!

Do you just turn the part that you pull out? I read that it should be set at 10-12 clicks out?

I said it about 10 post back. Lol, but no you don't need to pull it to turn it just turn it. Read my first post about how I set mine.

 

[jackson409]

My favorite all time oil was suzuki ccs bit they don't make it anymore. Same goes for Kawasaki premix oil though they still make it. The zooks love the basic oils at stock mixing ratios. Always follow the manufacturers specs.

Yeah mine loves the castor but hates the ester blend

 

[tylerdb]

When I spin my choke knob it never gets tight...I took it out and can't figure out why

 

[jackson409]

When I spin my choke knob it never gets tight...I took it out and can't figure out why

Does it click when you spin it? Does it have a directional arrow on the top of the knob?

 

[tylerdb]

No arrow And I don't hear any clicking. It did something though because I can't get the bike to idle now

 

[jackson409]

No arrow And I don't hear any clicking. It did something though because I can't get the bike to idle now

Notice on mine it has it so maybe your doesn't have the adjustment

 

[jackson409]

I noticed your boot ring is half off in that would cause an air leak.

 

[tylerdb]

Haha yea that's why it wasn't idling I noticed that right after I was just in a rush.
Maybe I can pick up one of those choke assembly's. I have a zip tie on mine just so it will allow the choke to stay on.

Gonna try a 42 pilot jet too just to see if that makes it any better

 

[tylerdb]

Tried a 42 pilot jet and no better...I did find that the choke now does not work.

I'm thinking that maybe the choke is staying in the on position all the time?

 

[Mihylo33]

I would try the choke circuit now.

 

[tylerdb]

Gonna try an carb from my buddies 05 just so i can rule out any motor problems. If that makes it run good im gonna swap his choke assembly to my carb and try that.

 

[Mihylo33]

Gonna try an carb from my buddies 05 just so i can rule out any motor problems. If that makes it run good im gonna swap his choke assembly to my carb and try that.

Just swap out the choke assembly.

 

[tylerdb]

Carb fixed my problem, bike runs mint. Gonna swap the choke assembly tomorrow to confirm.

 

[tylerdb]

Swapped my buddies choke and float assembly on to my carb and it runs the same.

Our jetting, needle height and slide are the same.

Any ideas guys? I'm stumped