Valve clearance checks and buying a used bike...
Posted: Mon Dec 08, 2014 8:04 pm
Hi folks. After buying my ZRX this summer, i synched the carbs and noticed quite the improvement in smoothness and performance. Then i painted it, and rode it for a couple of months back and forth to work. It had 13127 miles on the clock, i think when i bought it. Today it is in the garage with 14,900. Time for 15,000 interval maintenance...so check this out.
Well, I started thinking about the mileage and how many bikes i see on the market with similar mileage. As the weather deteriorated and a storm ruined one of my trees out back, the next thing i know we're having record lows and i decided to take the bike off the road for the winter and check the valves...you never really know when there are no receipts and you are the 4th owner in 13,000 miles.
Sure enough...WAY out of spec. All 16 of them. This bike has been SO powerful, smooth and fun to ride, i am really glad i checked this. Today, i fired it back up and ....all i can say is it's amazing what you can get used to! The difference is actually night and day. Faster revving, smoother idle. i even had to turn the idle speed down 1000 rpm from where it was! It was idling right at 1050 when i took it off the road. Today, after warmup with choke off, 2050. wow.
So, have a plan when you buy used. This particular thing was clearly skipped at the 7500 interval, and one of the #3 exhaust valves was a little scary, but apparently not burned. There hasn't been any perceived problem, but the improvements indicate i just didn't know what i really have here for power....and i still loved it!
lol...okay, i am also painting gold highlights you will see later, and tweaking other things to suit me ergonomically and style-wise. I am going through many systems to make next year a year of reliable riding. Thanks for reading.
Well, I started thinking about the mileage and how many bikes i see on the market with similar mileage. As the weather deteriorated and a storm ruined one of my trees out back, the next thing i know we're having record lows and i decided to take the bike off the road for the winter and check the valves...you never really know when there are no receipts and you are the 4th owner in 13,000 miles.
Sure enough...WAY out of spec. All 16 of them. This bike has been SO powerful, smooth and fun to ride, i am really glad i checked this. Today, i fired it back up and ....all i can say is it's amazing what you can get used to! The difference is actually night and day. Faster revving, smoother idle. i even had to turn the idle speed down 1000 rpm from where it was! It was idling right at 1050 when i took it off the road. Today, after warmup with choke off, 2050. wow.
So, have a plan when you buy used. This particular thing was clearly skipped at the 7500 interval, and one of the #3 exhaust valves was a little scary, but apparently not burned. There hasn't been any perceived problem, but the improvements indicate i just didn't know what i really have here for power....and i still loved it!
lol...okay, i am also painting gold highlights you will see later, and tweaking other things to suit me ergonomically and style-wise. I am going through many systems to make next year a year of reliable riding. Thanks for reading.