I have a 94 900ss cr. I love the bike but it keeps stalling
it happens usually in higher gears when i give it gas
First i can feel it lose power then if i try to give it more gas it sputters and dies.
an idea is that it could have something to do with my ignition advancers but anyone with any help they can give will help me alot
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Re: 900 ss Stalling
Sounds like the carbs are getting starved for fuel as load and rpm's increase. Start with Jack's suggestion on the fuel filter and get a new one. If that doesn't do it check other items in the fuel delivery circut. Rust or scale in the tank plugging the pickup dried out fuel lines that are semi-collapsed dirt and grit in the carbs - stuff like that.
Fuel delivery problems typically seem to manifest themselves in the higher gears under load. They don't show up in the lower gears when accelerating simply because the bike pulls through them so quickly. If delivery is barely adequate, it has a split second to catch up when you shift. As the duration of uninterrupted load increases, it will run out of gas before the next shift. Typically, they fire right back up after you pull over and let them sit for a minute with the fuel pump running. Does your bike do this?,,,
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Hi Anonymous, if you have a carburator the usual suspects are:
1. Damaged or restricted fuel tank venting system (gas cap).
2. Inlet system air leak.
3. Vacuum piston malfunction.
4. Accelerator pump leaking or no output.
5. Plugged bowl vent.
6. Fuel level (float chamber) too low.
7. Restriccted fuel supply passages.
8. Plugged jets or passages.
9. Worn or damaged needle or needle jet.
10. Enrichner valve not seated or leaking.
check for the pinched vacuum line at the carb,, sportys are hard to locate because they are tucked in way behind , it ay have come disconnected, unless there is a load on the motor it will idle fine, add a little load and you get the feeling no fuel is getting through unless you rev it up
Google " vapor lock " and read the wikipedia definition. Your problem could be vapor lock but I think it is a vacuum problem. If no air can get into the gas tank then fuel can't get out. Most gas caps have a vent aspect built into the cap. Ride your bike with the cap loose. If the problem disappears you now know the source.
I have a crf 250 R and i have learned multiple things about these bikes like if you leave it running and not riding it for about ten min. it will over heat. they love race gas 113 octane,and alot more. but your prob sounds strange. i know if you hold the hot start while its runing it pops that could be a problem. or it could be you are not cleaning the bike out i would need to know more about this to give a definate answer but try going over the bike. Look at key parts like the carb air cleaner fuel line any thing that is nesessary for the bike to run.
At a guess....
Your clutch is slipping. Higher gears and increased drag at hiway speeds put the most torque through the clutch and it sounds like that's when the plates start to slip. When you back off the plates grab again until the load over powers the plates again.
But that's just a inter-guess through a computer screen...... ,,
what should I do?Check the fuel tank petcock position. Check that the valve is in the proper position for fuel to flow. It happens.
It's possible that the spark plug is fouled. Remove the plug and inspect for evidence of fouling. Clean and replace and then try starting the engine.,