I have a 2003 Rincon 650 and it wont start worth a s@!t when its below 30 F. I turn the fuel shut off to off when it is sitting and still no luck. I have tried everything!!!! Primer, no primer. Choke, no choke. Playing with the throttle, not playing with the throttle and everthing in between and no luck except its a sure thing to kill the battery every time trying to start in cold weather.
What the heck can I do?????? PLEASE HELP!!!!!!

 

yo

Maybe you have already tried this, but your reference to the battery suggests you haven't thought of it. Even though I have the electric start on both my quads, in really cold weather, I can usually get them started using the pull start. Seems like you get a lot more compression with a good hard pull on the cord as opposed to the electric start. Just pull the choke and yank like hell. Never had to go beyond two pulls, even in the extreme cold

Good luck!

 

Have you switched to a hotter spark plug for cold weather???? A hotter plug will have a LOWER heat range number.

 

On my old 250 when the rings were startin to go i would have to pull start it in the winter but on my ex all i did was change the pilot jet and it idles like a dream on the coldest days. I'd check your carb for blockages and then check your compression.

 

Hondas are normally remarkably good at starting.

With a fully charged battery, have the gas on and choke on, wait two minutes with the ignition on for the carb heater to work, prime and start - don't touch the throttle.

If that doesn't work I would check the choke cable. If it has slack, your choke will not be fully enabled.

If that doesn't work, how old is your gas??? Winter gas blended with lighter hydrocarbons for easier winter starting. Is the gas in the Rincon left over from this summer? Are you using a brand name gas?

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I would check your valve adjustment with the engine under 100 degrees F. Also check the battery voltage while the engine is cranking over. Battery voltage should remain above at least 9.6 volts.

Spark plug heat range determines the actual "spark plug temperature" when the engine is up to operating temperature and at wide-open throttle. When the engine is cold and first started, spark plug "heat range" will not affect the initial start up. When you look at the electrode end of a spark plug and focus on the white porcelain, the spark plug that has the most porcelain is the colder heat range of the spark plugs. That is because with more porcelain the plug is capable of transferring more heat from the tip of the spark plug into the cylinder head for the heat to be dispersed into the cooling system or cooling fins.

Spark plug gap can effect the duration (or amount of time the spark jumps the gap) and the "intensity" of spark. You may want to double check the gap too.

 

once u can start it make sure u start it regularly even if ur not riding just to let it warm up and give it some exercise. this will keep it easy to start

 

Sounds like you may need to change the plug.
Also try letting it sit with the ignition on for a minute or two. The Rincon has an internal carburetor heater and it will heat the carb when the ignition is on. So pump the primer 2-3 times (if it's really needed), pull the choke, and turn the ignition on and let it sit for a minute or two to warm up. If that fails, change you plug or check the gap.