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What's the reason for the bike turning off during my ride?

1623 Views 2 Replies 3 Participants Last post by  n2o2diver
Can the TW200 turn off whilst riding it if it hasn't been given enough time to warm up from a cold start? I was running a bit late today. I turned on the choke on start, and I might've left the max choke on a minute longer than necessary since I was inside getting my gear ready. Turned off the choke, and let the bike warm up for about 3 minutes.

I was then on my way, when at the end of my street, as I held the clutch in to switch gears from 5th to 1st, the bike turned off. It wouldn't turn back on, kind of like it was struggling from lack of battery juice. I just replaced the battery a month and a half ago, and I filled up the tank yesterday (btw, throttle went dead yesterday mid-highway because my tank was empty. Switched it to reserve gas, and filled it up at the gas station. Could that of played a factor? Fuel cock was on tank this morning so I don't think so).

The bike started when I rolled it forward and tried to start it. What do you think went wrong? I've been riding for a few months but I'm not too knowledgeable with bike problems. Do you think it was the shortage of warm up time, or do batteries (factory replacement) really last that short of a time? Or did it turn off because of the choke being left on too much this morning?

Thanks guys
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First, dirty gas from switching to reserve or running very low (install a filter and clean the carb a bit), fuel cap not venting (when it tries to die remove the cap and see what happens), carb vents plugged (look at the drain lines on it for blockage), kickstand switch malfunctioning (less likely but just spray some contact cleaner in it or disconnect it). The TW200 (at least the older ones) should be able to run without a battery at all, so dying while the engine was on isn't likely a battery issue. I sure hope you charged the battery before you installed it though.

Dying when you pull the clutch is usually a fuel issue, which would make sense given your description. I would pull the bowl off the carb (read the stickies on here) and give a light cleaning to it and the jets and see if anything improves. Also, with the bowl off, hold the float up, turn the fuel on momentarily, then drop the float and make sure a little gas starts pouring. I forget how hard it is to remove the bowl with the carb on the bike, but I do recall it being doable.

If you've never before, get yourself four replacement screws (preferable SS allen heads) for the bowl. Helps a lot if you're removing it a lot as the stock ones strip easy. You can learn the details of that on here.

Also, since you'll be doing carb work here and there (Or you pay somebody a stupid amount of money to do it. I don't judge.) Search for the JIS driver thing. It'll save you a couple more stripped screws.
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