| Author | Message | ||
     Mrzifear |
In the first week of getting my 1125 I put a K&N air filter on. I like their filters and they have always worked well for me. The Only real problem I have had with my bike is after riding it and stopping for a little while it would be very hard to start. It would just turn over and over and over and then maybe backfire and then start. This would cause the 02 light to sometimes come on. This only happens when the bike is warm. when its cold it just fires right up. It got to the point when I went riding with friends I didn't want to turn it off. I searched the forums and found other people with the same problems. I asked the dealer to look into it but they didn't know. So I just got used to it and lived with it. A few weeks ago I was taking the noid out. I had taken the cable off when i got the bike but I finally bought the 5 buck little thing that you put in. BTW I had no idea the noid weighted so much. So as I am cleaning the small amounts of crap that got sucked into the air box from the ram air and I figured I would try the stock filter again. Long story short after swapping back to the stock filter I have not had one hard start. I can stop for 10-30 min and the bike fires right up now. I am very happy that this seemed to fix my problem. I will look into putting the K&N back on when I finally break down and get a tune but for now its all stock air filter for me. Mrzifear | ||
| Moosestang |
Coincidence, nothing more. I used stock filter, K&N filter and even dual K&N filters and mine fires every time. What are your AFV's? I assume you don't touch the throttle when starting. I'm sure there is some common denominator between everyone with starting problems, but I seriously doubt it's an air filter. | ||
| Blur |
Thanks for posting what you figured out. I'll stay away from a filter and probably the FMF I have until I know when I can get it tuned. | ||
| Froggy |
I agree that it was a coincidence. Being winter, it is much cooler out, next summer the problem will probably come back. I recommend you have your dealer check for updated ECM programming. | ||
| Mrzifear |
my AFV with the K&N were dropping down to low 90.1s at times. After changing back to stock they have gone back up to 95-100 depending. I thought the hard starting I was having might has been a summer thing but it was doing it in the winter too up until the change. And really the Winter in L.A. isn't that cold. It could just be dumb luck that it stopped doing it. But being thats the only thing thats changed and the problem went away I don't know what else to think. On a Side note and I know its been said here before but in stock trim the bike does run noticeable better with the stock filter. I had hoped it wouldn't it but it does. Though I have no numbers to really prove this. | ||
| Thurstonbuell |
If your bike has been idle for a long period of time , turn the ignition on , with the kill switch off , press the start button and you'll hear the fuel pump run until it has built proper system pressure , you can now start the bike with greater ease .... Just a fyi | ||
| Moosestang |
It's all in your head. I can tell no difference in running on my bike. I also didn't get any change in AFV. I would guess it's your weather change like Froggy said. There's more to it than just temps. I wouldn't be surprised if altitude comes into play for the starting issue. I'm close to sea level, everything works better at sea level. | ||
| Mountainstorm |
One source of hard starts occurs when untrained mechanically inclined people take their bikes apart and then reassemble them incorrectly. There is a small round tube on the right of the intakes that faces upward. This must not be obstructed. It is easy to overlook the proper fitment of this breather tube into the rubber gasket that seals around the intake horns. If the tube is obstructed the engine cannot get the proper airflow for the start and idle. | ||
| Jules |
I've had the K&N in mine since new and although I had some "hard start" issues (including two days of "no start" LOL) they were cured with a revised flash and all is good again. AFVs are fine too, 100/105 and the bike runs way better with this flash, smooth down to 2500 RPM now. | ||
| Moosestang |
Mountain, it's a rubber hose that goes in a plastic hole. How can you mess that up? The breather tube doesn't go into the rubber gasket that seals around the intake horns. It just pushes into a hole in the bottom of the air box. | ||
| Mountainstorm |
You are correct. The rubber gasket and the plastic airbox bottom panel are two distinct parts. I misspoke. |
