Question about Mongoose Mischief Mag BMX Bike
My first thought about the chain continuuin to become loose, is that you need to loosen the nuts on the back wheel, and pull the wheel (while the chain is still attached to bot hsprockets) in order to remove any slack. If it's a continuous issue, chances are that back tire keeps migrating forward because those nuts aren't tight enough.
To the pedal issue-If the pedals are wobbling or vibrating because the aren't snug while on the pedal bar (the bar that the pedals revolve around) it is probably because the peddals are too large. Try buying a new set of pedals. If they are loose and trying to slip off of the pedal bar and if you have tightened the nuts that keep the pedal on the pedal bar and they are continuing to become loose, it could be that you need to use locking nuts.
A quick fix to solving loose pedals is to add washers to the end of the bar until the washers are flush up against the pedal and the nut.
Posted on Mar 23, 2011
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Posted on Jan 02, 2017
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Feb 24, 2015 | Pedals Cycling
Feb 17, 2015 | Cycling
These are the instructions for adjusting the chain. They are taken directly from the manual available at http://ep.yimg.com/ty/cdn/razorama/e100e200e300manual.pdf
To adjust the chain:
1. Loosen the axle
2. Loosen the brake anchor (this is attached with the small bolt in the long slot on the left side of the rear fork)
3. Tighten the tension adjusters on the axle 1/8 to 1/4 turn to tension the chain. Tighten both adjusters the exact same amount to maintain the wheel alignment.
Note: this system of adjusters is common to motorcycles and BMX
bicycles so I your are not familiar with it, if you know anyone who is,
they would not have a problem adjusting it for you.
Chain tension: The chain should be "just not-quite snug" in other
words, not taut or sloppy loose. BE CAREFUL NOT TO ADJUST TOO TIGHT. The tensioning system can easily impart too much tension and snap the chain or bend the motor output shaft. Turn the adjusters 1/8 to 1/4 turn at a time and recheck the tension each time.
4. Once the tension is good, tighten the axle and brake anchor bolt. Test run the scooter. Readjust as needed.
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