RM125 97 rm 125

[Jayazoomy]

I have a 97 Rm 125 10 hours on top end just cleaned carb and new plug and cleaned air filter every one has told me 1 1/2 turns for the air screw but at that my bike just floods out and anything below 2 3/4 it has no jam all seals were done with top end anyone have any ideas why it would need so much air

 

[jackson409]

what are your jets sizes in the bike? pilot and main? what is the needle size and where is the clip on the needle?

 

[SRAD97750]

IF THE CARB IS CLEAN...
and you are at the end of adjustment on the idle mix screw, then the pilot jet needs adjusting.
If you need the air screw out almost 3 turns then you need a smaller pilot jet to lean the mixture. -BIG DAN

 

[Jayazoomy]

Idle screw can still go in and out

 

[SRAD97750]

Yeah, The optimal setting is 1.5-2.5 turns from gently seated.
If you are outside of that by alot, it's worth putting the right jet in instead of just putting a band-aid on the issue(screwing it farther).

It's not hurting anything to have your needle set one way or the other. But if you were to change elevation or temperature and needed more adjustment, you may run out! -BIG DAN

 

[Jayazoomy]

I am in ontairo and it is only 6 Celsius out would that make a difference

 

[Jayazoomy]

I am going to take the carb off again do u know where the needle should be and what the jet size main and secondary should be

 

[Jayazoomy]

The number on the needle is r2071j and it is on the third slot the main jet is 168 and the secondary one is a 50

 

[Jayazoomy]

Just took off reed valves look in good condition anything else I should be looking at well I'm this far

 

[SRAD97750]

Sounds good so far, You can drop to a 45 idle jet and it'll bring your air screw adjustment under 2 turns from seated. -BIG DAN

 

[Jayazoomy]

My brother suggested dropping the needle and turning the idle screw out think that would help

 

[SRAD97750]

Changing the clip on the needle will change the 1/4-3/4 throttle.
But the idle speed adjustment will do nothing but lower your idle.
I think the pilot jet is the culprit. -BIG DAN

 

[Jayazoomy]

Thanks even thou they r the stock jets gess they ware over time just went over my reed valves real well and noticed one has a little fray on one corner would that effect it to

 

[SRAD97750]

Thanks even thou they r the stock jets gess they ware over time just went over my reed valves real well and noticed one has a little fray on one corner would that effect it to

Carburetors are wear parts... If you replace the idle jet, i'd replace the main jet as well just make sure both jets are accurate. So, get a 45 pilot (one size smaller than stock), and whatever stock was for the main.
I don't think minimal fraying is an issue. As long as the tips of the reeds rest on the cage. -BIG DAN

 

[bobkyle2]

Hold the reeds up to a light, and look through the back side. If you see light through them, replace them. Sometimes you can take them off and flip them... But if they look frayed, i'd replace them. If they start chipping the piston is going to lunch them.