Fresh carbs no start

[Awoofc54]

X

[Awoofc54]

Alright so I just bought my first bike (2009 Ninja 250r). The seller had the bike garage kept, but it was sitting for about 2 years. The bikes battery was the first thing that needed replaced. After installing a new battery, I tried starting the bike and it wouldn’t turn over. I used starter fluid and the bike would turn over but died fairly quickly. So i ask a buddy of mine to take a look at it and he said the carbs were bad and I need to get them rebuilt. So I took the carbs to the shop to get rebuilt and cleaned (I don’t own a vehicle that can haul so I only brought the carbs). After a few days I got the carbs back and installed them. I excitedly went to turn my bike on and it wouldn’t turn over. Starter fluid was the only way the bike would turn on, but it only stayed on for a few seconds. Could I have routed the hoses to the wrong places?

The point is I’m not sure what I’m doing wrong and also I don’t know what I’m really doing at all lol. I would take the bike to a shop but I don’t have anything to haul it with. Is my first bike a bust? Please help!!!!

[ducatiman]

starting attempts using full choke? petcock is supplying fuel to carb bowls, for sure? 100% fresh fuel? Spark plugs fresh? Air filter flowing/cleaned or replaced? Just a few possibilities.

[Awoofc54]

@ducatiman, yes to all of those besides the petcock. I think that is my problem

[Snake]

Also make sure to check the filter going to the petcock.

[Awoofc54]

Can either of you describe or have a photo of the correct hose that goes on to the petcock on the gas tank? @Snake @ducatiman

[ducatiman]

there are actually 2 from petcock.......fuel supply (larger of the 2) and vac hose

[jkv45]

Open the floatbowl drains to confirm you have fuel in the floatbowls.

Hold back on the Starting Fluid, it's bad for plastic parts. If it sputters on Starting Fluid, you have proved what you want to know - all is good except for fuel.

The other possibility is the shop didn't know how to properly clean, rebuild, and adjust the carbs - which isn't uncommon these days. That's why we always suggest you send carbs to ducatiman - he knows how to do it right.

Be sure to charge the battery frequently.

[Awoofc54]

So here are some pictures that can help a little bit better. So the red hose definitely goes on the bottoms of the gas tank right? And the white circled hose goes on the other petcock on the the tank? Also do the carb hoses look to be in the right spots?

[ducatiman]

big red goes to petcock, larger of the 2, its the fuel line.

Seems your white is misrouted, plugged onto incorrect fitting, see this for correct installation

https://faq.ninja250.org/wiki/Carbur...nia_difference

[ducatiman]

big red goes to petcock, larger of the 2, its the fuel line.

Seems your white is misrouted, see this for correct installation

https://faq.ninja250.org/wiki/Carbur...nia_difference

another here https://faq.ninja250.org/wiki/File:Routing.gif

[Awoofc54]

@ducatiman so I don’t have a California bike it’s the other 49 states. So why do I have a T hose on my carbs. The link you posted said their shouldn’t be a T hose their if not California?

[ducatiman]

there is no evap tank, for sure?

[Awoofc54]

The vacuum hose for the gas tank had a T hose on it and had the blue circled hose on the T hose

[ducatiman]

Originally Posted by Awoofc54

@ducatiman, yes to all of those besides the petcock. I think that is my problem

I'd agree, petcock fuel delivery requires a vacuum source (hose from LH carb brass barb to small fitting on petcock)

in your supplied pics, its missing in action. As i posted earlier, the crossover tube is misrouted.

[Awoofc54]

Originally Posted by Awoofc54

The vacuum hose for the gas tank had a T hose on it and had the blue circled hose on the T hose

I could be very wrong about the bike not being a Cali bike. I was basing it off of the tank not having the 3 emissions spots. And the bike still having the original gas tank.

[ducatiman]

a previous owner has whacked the hose routing.

post a pic of the petcock, if you will

[Awoofc54]

Alright so I rerouted the hoses on the carbs properly I think (seen in picture) @ducatiman

[ducatiman]

so time to attach fuel feed line from carb inlet to petcock (large barb)

and the all important vac line, currently misrouted pointing rear over carb....to petcock (small barb)

As an aside...your LH carb is not seated fully in its manifold.

you're getting there.

[jkv45]

It's also not widely known that the components of the left and right carb are not the same on later carbed Ninjas.

[ducatiman]

tru dat....needles differ

[shspvr]

Originally Posted by jkv45

It's also not widely known that the components of the left and right carb are not the same on later carbed Ninjas.

I'm assuming you're referring to 08 thru 12? also there's a California specifics models with the added emissions evap canister on 1988 Ninja 250 on up to 07 then after that all US 08-model got evap canister and far I can tell the only real diff is in needle jet 08 thru 12 which are specifics left and right needles as you said where 86 - 07 Ninja 250 are the same part number

[ducatiman]

Originally Posted by ducatiman

so time to attach fuel feed line from carb inlet to petcock (large barb)

and the all important vac line, currently misrouted pointing rear over carb....to petcock (small barb)

As an aside...your LH carb is not seated fully in its manifold.

you're getting there.

well, OP ? Results?

[Triple Jim]

Originally Posted by ducatiman

well, OP ? Results?

He may be playing with his Christmas toys for a couple days, Gordon.

[DannoXYZ]

Now that you've got carb-hoses routed more optimally with dedicated vacuum-hose for petcock, make sure the hose-clamp is on securely past the bulge in brass fitting.

Also trace hose coming off emissions-fitting T going to PAIR valve in front. Make sure hose is actually plugged into PAIR valve with firm hose-clamp. Vacuum leaks on either hose will cause starting and running problems.

Next step after this if it doesn't work is to verify tou actually have fuel-flow out of petcock
to carbs and determine its flow-rate.

[Awoofc54]

Originally Posted by ducatiman

well, OP ? Results?

I connected all 3 hoses to the tank still no start.

[Awoofc54]

Originally Posted by Triple Jim

He may be playing with his Christmas toys for a couple days, Gordon.

I was thank you very much, got my first helmet

[Triple Jim]

Originally Posted by Awoofc54

I connected all 3 hoses to the tank still no start.

Are the float bowls known to be full now?

[Awoofc54]

Originally Posted by Triple Jim

Are the float bowls known to be full now?

Sorry for the late response but yes I believe so

[DannoXYZ]

Originally Posted by Awoofc54

Sorry for the late response but yes I believe so

did you drain bowls and measure volume collected?

[ducatiman]

a quickie clear tube test would reveal actual fuel levels.....

[DannoXYZ]

another final functional test of hoses, tank and petcock is to see how much petrol is actually flowing:

1. disconnect fuel-hose from carb-inlet
2. aim into measuring cup
3. crank engine for 10s
4. how much petrol did you collect?

[Bob KellyIII]

I would almost guarantee you that the carb cleaning wasn't done right !
I'm a retired motorcycle mechanic I had my own shop 2 times for a few years each and I had to pull and clean the carbs on my ninja 3 times just to get it to RUN !!!!!! and it only set for a few years ! the Ninja carbs are a bitch to clean
really ! and I know bike carbs... these are harder than usual !
.....
take those carbs off and send them to ducattiman and then you will have no more problems with the carbs !
its the easiest best method....
....
Bob.....