Losing power (bogging) on Freeway High RPM. Scary, Help Please!
this is my very first motorcycle and yes I am a newb so I apologize for any ignorance in advance.
i tried searching many a times for an answer here but to no avail.
Here's the deal. My bike runs great while riding around town in streets. When i get on the freeway and go ~80 mph and above my bike will run a couple of miles great. But after a while it will suddenly lose power (bog down) and start dropping speed down to 65. I will give it full throttle but the bike will keep dropping speed or just hold the speed at ~65mph. If I happen to release the throttle the speed will drop and if given more throttle it will stay at that lower speed and not go faster till I pull over.
I have to get off and the engine will sometimes die when coming to a stop. I wait a few seconds and restart it with the choke and it goes fine and will ride the streets no problem.
What is wrong with my bike????? Is it the engine, fuel system, is it overheating??? Is it a fixable problem??? Am I not letting it warm up long enough???
Is this normal since its a 250cc and isnít built to ride at 80 mph to 90 mph for a long period of time (Iím guessing)???
I have not experienced this problem while going 65-70 mph for long rides on the freeway. Only when I ride higher speeds for an extended period of time ~5-10 miles.
2008 ninja 250r stock
bought it used with 1800 miles on it
Other examples to be more specific. All separate days.
1st time Happened (Orange county, ca. 6:45 am)
started my bike, let it warm up, road onto freeway. started going average 85 - 90 mph. about 8-10 miles down the freeway, it suddenly started losing power and dropping speed. I gave it w.o.t. and still slowed down and engine wouldn't speed up. it stopped dropping to 65mph then it maintained there unless I slowed it down then it would stay at that lower speed 50 mph. Scary when 18 wheelers are passing you lol!
exited and turned off the engine, let it cool down for 1 minutes, started fine and ran fine street wise. so got back on and SAME THING HAPPENED AGAIN going 85 mph only at a shorter distance ~4 miles. It wouldnít start unless I put the choke, then rode fine in streets again.
2nd time. (Orange county, ca. 6:45 am)
Same thing happened only I was going average 75-80 mph. It lasted a little longer, but same situation happened only the engine did turn off when coming to stop.
3rd time (Orange county, ca. 5:50 P.M.)
Same as 2nd time, engine died coming to a stop.
4rth time (Orange county, ca. 2:00 AM)
Same thing, only going average 75 mph bout 8 miles down freeway. Engine did die when I was coming to a stop.
I just wait a minute or little less, put the choke on, then it starts and run like a beauty in streets.
Any help would be appreciated, if need any more specifics please ask.