plug chop, am I lean?

[NOVIS]

I did a plug chop. I got a picture but not sure if I can upload it from my phone. Its got a 2-3 mm very faint grayish ring. that means I'm running a bit lean right? Should I just bump up the main jet or should I adjust other part of the carb as well. When I get my internet back up ill post the picture

 

[Quadrider10]

probs way lean. try like 3 sizes up or so. imo i might be wrong.

 

[NOVIS]

Im at a 270. Ill grab up to a 300 and try them out I guess...

 

[Quadrider10]

yupp start at the 300, and work down. and post pic when u can.

 

[yamaha28]

You want it more brown then that, I would go up a few sizes and work your way down. Is this for a blaster? What mods?

 

[NOVIS]

It was from my lt. I have reeds and a dg pipe. Haven't been able to find out what the stock jets are so I was lost at where to start

 

[blasterdemon7]

Like said, you are on the lean side. Not sure what size you should be running.

 

[NOVIS]

Seems like im at the dealers getting parts every other day haha.

 

[blasterdemon7]

Did you try Suzuki Z400 Forum : Z400 Forums for some jetting ideas ? They have an LT 250R section.

 

[NOVIS]

I'm on quadracerhq, couldn't find any info there though so I thought I would do a plug chop to see where I was at. Now, even though I found out I need to re-jet, at least I know

 

[yfz450bence]

Every bike likes something different. Buy a few plugs and start richer until you get that color. Doing this takes time but still cheaper than a dyno tune and cant beat real world tuning anyways on a 2 stroke

 

[piezzi]

Every bike likes something different. Buy a few plugs and start richer until you get that color. Doing this takes time but still cheaper than a dyno tune and cant beat real world tuning anyways on a 2 stroke

BENCE, I see you from time to time on YFZ central posting stuff like this above ^^^ and you seem to be a helpful guy. I've also noticed there aren't too many helpful guys on central, which is why you stood out. Good to see you over here, dude!

 

[NOVIS]

Thanks boys! I think I know where to go from here

 

[NOVIS]

Started at 300. Plug chop said a bit rich. Ran a 290 for a bit and it felt beautiful. I think I may be a bit lean still on the pilot so I might drop the needle down 1 notch and see how it runs. at least I'm riding worry free now I:I

 

[Blaaster]

Altering the needle will not fatten up the idle, it is adjusted by the air screw!

If you drop the needle down you will run leaner, or did you mean drop the clip down to lift the needle up?

 

[NOVIS]

Yes I meant drop the clip. it feels a little choppy under 1/2 throttle, woul droppin the clip not help this?

 

[Blaaster]

It was from my lt. I have reeds and a dg pipe. Haven't been able to find out what the stock jets are so I was lost at where to start

Just noticed that you have a DG pipe, a #290 main jet seems a very big jet for a DG.

Have you done a leak down test?

I may be barking up the wrong tree, but a #290 with a DG, shouts ,air leak, especially if you think it is lean at idle.

Choppy up to 1/2 throttle and a big main which may mask an air leak!

Leak down test!

 

[NOVIS]

You know this is for my lt250 right? stock is 260 main. I have reeds, dg pipe, and no air box lid.

 

[Blaaster]

I did a plug chop. I got a picture but not sure if I can upload it from my phone. Its got a 2-3 mm very faint grayish ring. that means I'm running a bit lean right? Should I just bump up the main jet or should I adjust other part of the carb as well. When I get my internet back up ill post the picture

Well have I been barking up the wrong tree, I assumed we were talking of a Blaster, you did not mention it was a LT250.

An LT250 is a different kettle of fish, forget all that I said.

 

[NOVIS]

It was mentioned on the previous page. But I don't blame you, I don't usually read full threads either haha