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Just checking up, now that im getting to giving the new "to me" 93 moto4 350 2wd a tune up. Are there any weak points to really keep an eye on for failure? Never had a shaft driven quad before. On a side note, my yamaha came with a plow which i fully plan to use this winter, are there any dos and donts for plows with this quad? gears to avoid? etc? obviously letting your bike warm up etc.
Hey folks, On my quad (250cc yamaha 4 stroke motor). It's actually a Jainshe Puma 250, but it's just a renamed beartracker. It seams like the spark is a little weak. Starts up and runs fine in warm weather when I don't need the choke, but as soon as you choke it, it has to start the first crank or it won't start without a bunch of sweat that ends up usually with a shot of ether. As soon as it starts and warms up, no problems until it sets overnight or several hours. When I pull the plug and crank it, it has a blue spark, but not the tuff guy look that you see on a car or lawnmower. The plug is gapped IAW the book (forget what it is at the moment). Could the coil be bad, or bad connections somewhere? Any ideas? Thanks, Dave