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Discussion Starter · #1 ·
Hey guys having problems with my SSR 125 I just got a new mikuni 22mm and I can't get the bike to start at all. I confirmed spark. And I have fuel in the bowl I'm completely out of ideas. Also there is an extra hose on the side of the carb I was told it is a vent. Where is it supposed to go? And help is appreciated
 

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My 22mm (made in Japan) on my 140 piranha had a 100 main and 15 pilot, air screw was about 1 3/4 turns out. Just got done rejetting my bike so I'm fairly confident in that info. The vent on the side just gets a length of hose attached to it to dump it down next to the fuel drain.
 

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Let's do this first...
Take carb apart and make sure the jets are clean then
Pull the plug and see if its wet or dry.
If wet dry it out and kick the bike over a few times to dry cylinder out.
If dry, put plug back in and spray carb cleaner or starting fluid into carb.
Kick it over and if it doesn't start, or try to start, it may not be a fuel issue.
 

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LINK:
TBolt USA Tech Database - TBolt USA, LLC

ENGINE AND CARB QUICK CHECK LIST


TBOLT USA TECH DATABASE! TECH-0088


Install Intake manifold to head and carb, oil gaskets and tighten bolts lightly at first then torque then down gradually in a cross pattern to provide a good seal and avoid air leaks


1)Throttle cable adjustment check:
a)Carb slide MUST hit bottom
b)Test it , You MUST hear the sound of the slide hitting the bottom of the carb
c)You must have free play or slack in the throttle cable
d)You must be able to turn the throttle a small amount WITHOUT moving the carb slide


2)Make sure the carb is 100% clean, free of debris and you can see light thru both main and pilot jets
You must start with a known good and properly oiled air filter


3)Double check you valve tappet adjustment .003intake and .004exh.


4)Make sure your exhaust gasket is installed properly.


5)Make sure you have a good intake to head and intake to carb seal and NO intake leaks


6)Make sure all electrical connections are tight and you have a solid ground from the engine to the frame.
and make sure you have spark




7)Check for good fuel flow and fresh fuel.


8-See our jetting guide and do a plug read.
And Check Our Simple Guide to Jetting TECH


9)Make sure your head studs are tight
110 INCH POUNDS (not Foot Pounds) on all Round Cam cover motors
16 FOOT POUNDS on all KLX Head Motors




Flooded Engine:
IF your flooded , pull the plug , Kick it over like 10 time WITH THE PLUG OUT
Put in a NEW PLUG


One more thing
I find at times it helps to just crack the throttle a tiny bit to let air in , just a tiny bit
 

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Discussion Starter · #8 ·
Thanks for the info guys all great information. The plug is wet and smells of fuel so I'm guessing it is insainly rich. Does anyone know the factory adjustments for the fuel/air screw and the idle adjust screw? I'd like to make sure its set properly after I tear it apart
 

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Do you have another carb to try?
Was it running before?

Ive pulled my carb off and sprayed a little bit of starting fluid down the intake just to see if it will even fire off.
Or even with the carb on, fuel off though, sprayed a little starting fluid to see if it'll fire off
 

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2.5 out on the botton brass fuel screw
1.5 out on the idle screw for starters

CONFIRM THIS:

1)Throttle cable adjustment check:
a)Carb slide MUST hit bottom
b)Test it , You MUST hear the sound of the slide hitting the bottom of the carb
c)You must have free play or slack in the throttle cable
d)You must be able to turn the throttle a small amount WITHOUT moving the carb slide
 

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Discussion Starter · #15 ·
It ran like crap with the original carb and I was not able to get rid of bogging. So I bought a mikuni because they are supposed to be solid. I don't have fuel flowing out of the overflow so I think the foat is working fine. If I tip the bike it will flow out. I'm going to re set the screws today to what you guys suggest and double check some things
 

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Ive never had an issue with a mikuni 22 out of the box with a 125 engine.
Now anything can happen even with new stuff.
Did ya clean the carb incase to make sure the jets are clean?
 

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You may not have the slide in correctly

CONFIRM THIS:


1)Throttle cable adjustment check:
a)Carb slide MUST hit bottom
b)Test it , You MUST hear the sound of the slide hitting the bottom of the carb
c)You must have free play or slack in the throttle cable
d)You must be able to turn the throttle a small amount WITHOUT moving the carb slide
 

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Discussion Starter · #18 ·
You may not have the slide in correctly

CONFIRM THIS:


1)Throttle cable adjustment check:
a)Carb slide MUST hit bottom
b)Test it , You MUST hear the sound of the slide hitting the bottom of the carb
c)You must have free play or slack in the throttle cable
d)You must be able to turn the throttle a small amount WITHOUT moving the carb slide
the slide is installed correctly =]
 

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Ok have you taken the carb apart and cleaned it yet?
Check the needle and seat and float is working properly?
 

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Discussion Starter · #20 ·
Just tore the carb apart and cleaned every jet and orifice. I started the acres and 2.5 on the bottom and 1.5 on the idle. No luck. I then slow adjusted the lower screw to 3.5 still nothing. I took the filter off the carb and I noticed I feel air and fuel blowing out of the intake is that normal?
 
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