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HERO HONDA CD 100 DELUXE 2000 model 50,000km run. changing engine oil (good one) every 2000km. now black smoke only 30kmph. cleaning carbu., airfilter, changing sparkplug didnot solve. please help me by advicing what else can be done.
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OK, here's a YouTube video describing how to do this. However it's not in English. But the guy does a good job of showing how to find to drain port and should be sufficient for you to figure the rest out.
Usually people change near 2000 kms but it really depends on your usage You can check your engine oil near the footrest if it seems blackish u might wanna change
There might be a problem of engine oil leakage. If your bike leaves oil leaks after staying in a place for some time then you have a leakage. Otherwise you might wanna go to a hero service centre
Several tips; Maintain the air pressure in tires at the highest max PSI as embossed in the sidewall of each tire. Don't rev the engine needlessly. Turn the engine off when stuck in traffic. Change to a larger front sprocket with one or two more teeth, ( 12 teeth to 13 or 14 teeth ). Ride slower for less wind resistance. Keep the chain oiled. Change gearbox oil every 2000 miles. Please note that you may need to add a link to the chain in order to use the larger sprocket. Please rate my answer. Thanks.
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