Got a few questions - F2
#11
#12
A little skinny on octane:
The Low-Down on High Octane Gasoline
Your bike should NOT be leaking after taking it to a shop. The shop should have tested and confirmed the problem was solved before giving it back to you, otherwise they should have discussed some other options with you.
I would get some goodies out of this whole ordeal.
The Low-Down on High Octane Gasoline
Your bike should NOT be leaking after taking it to a shop. The shop should have tested and confirmed the problem was solved before giving it back to you, otherwise they should have discussed some other options with you.
I would get some goodies out of this whole ordeal.
#13
Just keep in mind that ignition is triggered a few degrees before top-dead center (before the end of the actual compression stroke). so there is a flame front of combusting air/fuel mixture spreading to the walls of the cylinder as well as downward at the same time that the piston surface is rising upwards. there is unburnt air/fuel being squeezed in between the piston and the flame front. as it compresses further and further, it's temperature rises. if the pocket of unburnt fuel reaches the temperature and pressure required for combustion during this time, all of the unburnt air/fuel will detonate at once, before the piston passes top-dead center. this exerts torque on the crankshaft in the opposite direction that its supposed to be rotating and this can destroy your engine, peak combustion pressure is actually supposed to occur at about 15-18 degrees PASSED top dead center. So, ignition begins several degrees before the end of the compression stroke and finishes several degrees after the beginning of the power stroke, the precision of this interval is very important and the computer needs to be able to trust that the fuel mixture is going to ignite when it decides the time is right and ONLY then. High engine temps can cause the unburnt fuel mixture to detonate prematurely. higher octane fuels have a greater resistance to ignition because the temperature and pressure conditions required for their combustion are higher. dont risk your engine to save a few dollars at the pump on a machine that already gets phenomenal gas mileage
Last edited by kiithsjet; 06-12-2012 at 12:20 PM.
#14
wow kiithsjet what an awesome in depth about fuel. thx it helped me understand it alot. so far i have been puttin gin super unleaded in, yeah it costs a lil more but it worth it.
and update. i got my bike back. the shop said so we did some research....i was like about time u did research. so they said they put in a colder thermostat. i was like ok i told yall this from the begginning lol. So i rode to a tech day and everyday all day since then. my biek temp doesnt go even close to half. so they finally got it right and fixed it.
and update. i got my bike back. the shop said so we did some research....i was like about time u did research. so they said they put in a colder thermostat. i was like ok i told yall this from the begginning lol. So i rode to a tech day and everyday all day since then. my biek temp doesnt go even close to half. so they finally got it right and fixed it.
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