RM250 98 rm 250 rebuild

[Nighthawk016]

Yea man it runs great just needs a carb tuning and the gasket fixed

What carb does the bike have on it? I cant remember if the 98 have the PJ still or not

 

[Casey holt]

It has the keihin carb on it does it need to b setup for the bore, sry for all the uestions but I wanna make sure its all good to go before I go race this weekend

 

[josmoloco]

This site is a hotspot for poor running RM 250's haha

 

[Casey holt]

Ok so ordered oem seal for it pretty cheap 19 bucks. Anybody have a link to adjust the carb on it cause when I rev into it, it wants to bog down

 

[Casey holt]

Ok so ordered oem seal for it pretty cheap 19 bucks. Anybody have a link to adjust the carb on it cause when I rev into it, it wants to bog down

I think the carb is still set before the kit was put on

 

[Nighthawk016]

I think the carb is still set before the kit was put on

stock settings on the 98 carb (model # 37E2 and it is a PWK38PWJ) are main jet #162, needle N1EI in the center position, 45 pilot jet, and a 60 power jet... of course premixed at 32:1. Start there and whittle your way down to the correct jetting, it will take a little time but will be totally worth it when you are done.

 

[bobkyle2]

You will need to read up on how to re-jet. Make sure the carb is clean also.... Getting that carb jetted for that big bore needs to be number 1 on your list of things todo... IF its running lean, you are staving the engine for fuel... And on a 2 stroke if its starving for fuel its starving for oil.

You will need to do a plug chop.

 

[bobkyle2]

http://www.kawasakimotorcycle.org/f...ing-guide-info-2-stroke-riders-must-have.html

This will help yeah.

 

[Casey holt]

There is my carb which is the air fuel screw, can I adjust the stock jets to run on the bore

 

[Nighthawk016]

There is my carb which is the air fuel screw

the mix screw is the brass one in the bottom right of the pic.

can I adjust the stock jets to run on the bore

No, you just buy new ones but you have to run the bike before you can decide what to do. If its really rich, it will blow unburnt oil out of the exhaust. If the pilot is lean, when you start it, it will rev really high.

 

[Casey holt]

Well when I first rode it the spark plug was was a black color n the piston is prety much brand new n it has a black color to it like the oil wasn't burning or he was useing cheap oil mixture. I use amsoil myself. But when I ramp into the thbrorle it bogs down but I can work it to where it clears out. I can't tell the difference betwen lean or rich

 

[Casey holt]

Sorry for the noobie questions and all I'm always use to buyin a new bike n not haveing to mess with it or pay a shop but I am haveing finacial problems so I wanna learn how to do it myself

 

[James]

Sorry for the noobie questions and all I'm always use to buyin a new bike n not haveing to mess with it or pay a shop but I am haveing finacial problems so I wanna learn how to do it myself

No need to be sorry, that's what we're here for.

Learning to work on your own bike is both satisfying and cheaper.

 

[Casey holt]

Ain't that the truth, so for the air fuel screw how far do I need to srew it all the way in until it stop then turn it out 1 1/4 turns?

 

[Casey holt]

the mix screw is the brass one in the bottom right of the pic.
There is 2 brass screw one on the bottom of the card where the float is and one below to theright of the idle screw
No, you just buy new ones but you have to run the bike before you can decide what to do. If its really rich, it will blow unburnt oil out of the exhaust. If the pilot is lean, when you start it, it will rev really high.