I posted a problem on my 2000 zr7 about fuel in the air box I was told to check to see if the Pendulums in the chamber of the carb were adjusted properly. I am just wondering if somebody can add to this and help explain more. Thanks
They are called fuel floats. they float on top of the fuel in the fuel bowl and are attached to a valve that closes the fuel supply from the tank when a certain fuel level is reached inside the fuel bowl. Fuel level is crucial to air/fuel mixture and overflow can end up in the air box - more likely inside of your engine cases. To ckeck the float level consult your repair manual for instructions.
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Fire, fuel, air. If you're missing one, the engine won't run. You have spark, or "fire" Now check for fresh fuel (a wet plug) and finally air flow to from the air intake filter to the combustion chamber. If everything checks out, you may have a timing issue or internal engine damage.
The injectors are "leaking down" when the engine is off. This is putting raw fuel into the cylinders and it is leaking by the rings on the pistons into the oil. Since this dilutes the oil it can result in excess wear on the engine, replace the injectors soon!
Always the first thing is replace fuel filter, check that there is no mouse nest in air cleaner box, check to see if you have spark, then check to see if you have fuel delivery to the combustion chamber, check kill switch, check that fuel pump is working. If all that prove OK the your carbs may need cleaning.
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.
if its a 2 stroke then you need fuel spark and air to get the bike to start have you got compression? check it by removing the spark plug and put your finger over the hole air try and start the bike your finger should be pulled into the hole if not then a piston ring is either cracked or broken
open the air box and check the filter then clean the carb thats all you need for a 2 stroke
if its a 4 stroke then again check the air filter and compression remember that a 4 stroke doesnt have the oil with the fuel it goes in a separate chamber
fuel inside the carbs - loosen the drain screw at the bottom/bowl. Check for quality / quantity of fuel;
fuel into the combustion chamber - check the plug (would be wet).
For a no start 2 stroke engine with your described condition, a possibility to consider is too much / unburned 2T oil in the lower combustion chamber; remove sparkplug, air dry (or use compressed air).