Normal 0 When my 2007 carburated Yamaha Roadstar Midnight Silverado 1700 is cold, I can ride about 2 minutes, then it starts sputtering and no matter what I do – it dies. After about 30 seconds or so I can restart and be on my way. It likes to start its ‘death throes’ when I hit top gear, usually on the highway on-ramp! This bike is new with barely 2500 miles and has done this since day one. Choke position makes no difference and letting it warm-up before riding makes no difference either. The dealer keeps telling me that, “it’s the nature of the beast” and how cold natured it is… Bull, I don’t see silverado’s all over the side of the road and they’re common here.
The dealer is not interested.
The bike is set up very lean to meet emissions standards. Any of them will benefit from larger jets. It's probably running too lean.
I drive in Minnesota with plenty of cold weather riding. This bike was awful to ride in cold. I thought it was going to blow the carb off the bike. installed a dynojet kit in mine, came with a larger pilot jet, and the jet needle of course. Helped a lot right out of the box. You will allso want to modify the exhaust and intake box for more flow. The exhaust is very restrictive. And then finish tweaking in the settings from there
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