I recently picked up a 2005 Honda CRF450. When I test rode it it ran perfectly, had plenty of power, and it had nothing that I could notice wrong with it. I have owned it for about 2 days now and rode it everyday, but when I started it today it ran fine, but then died randomly when I was warming it up. I started it back up and it started making this knocking sound and died right after the noise started. I tried starting it again, ran for a second with the noise, then died. It was a cold day today, it was around 20 degrees in my garage when I tried starting the bike.
I have no clue what this would be, I am going to change the oil in the bike before I do anything else and wait until the weather warms up to try and start the bike again. I haven't put new gas in the bike since the previous owner had it, either.
I have no clue what this would be, I am going to change the oil in the bike before I do anything else and wait until the weather warms up to try and start the bike again. I haven't put new gas in the bike since the previous owner had it, either.
Last edited: