I experienced horrible cold weather starting with my 03 Eiger 400 4X4 but I found the problem. The problem is the air vent tube leading from the Keihin CVK32SS carburetor through a hole in the plastic bodywork terminating in a hole on the back side of the fuel tank plastic. My Eiger was assembled incorrectly by either Suzuki or my dealer. I am not sure who routes the line in question or when it occurs. The air vent line was routed to the edge of a plastic cover and bent hard around the corner instead of being routed through the as-designed hole that allows a smooth bend in the line. The 5 minutes of cold start warm up time everyone mentions is the key to finding the problem. When the air vent line is pinched and cold the ability to flow air through the tube is reduced. The air vent tube is located close to the exhaust header. It takes about 5 minutes for the area to warm up and then warm the air vent tube enough so it expands and relaxes the crimp allowing almost normal air to pass through it. I needed to replace the air vent line as it was permanently crimped and routed it correctly through the as-designed hole in the plastic cover. My Eiger would then start normally with full choke for only about 30 seconds accepting throttle inputs right after that. This was tested at 15 degrees Fahrenheit in Northern New York.

Good Luck

 

Hey reymondtj,

I am glad that someone had figured out the problem! I too was also experiences horrible cold weather starting with my 2003 Eiger. It happened last winter but I just let it thaw in the garage and it was fine the next day. This winter was different though and the only solution that my dad could come with was to put a hair dryer near the carburator on low setting. After about five minutes everything is back to normal and the Eiger runs well until the next day. I also own another 2003 Eiger but it has never experienced these problems. Thanks again for finding the solution, it was greatly appreciated. [img]i/expressions/face-icon-small-smile.gif[/img]

 

I have replied a couple times to Eigers and cold weather. 1.5 turns out on the air/fuel mixture screw and change the jet from the factory 122 to a 126. This works as Eigers are way to lean from the factory to meet Emissions for North America. Try it as it works.