2005 Aprilia Mojito Custom 125 - Page 4 - Answered Questions & Fixed issues

See if this helps Thread Another Spark Plug Question for my Aprilia SR50 help needed

There are picture charts to show different spark plug appearances. Once you determine your situation, you can take action to remedy the problem.

check the cdi

If adjuster screw is towards the front half of the carb, clockwise = lean, anti-clockwise = rich. If screw is towards back half of carb, clockwise = rich, anti-clockwise = lean. Make small adjustments. If you can't get good results then change pilot jet.

plugs and wire

REMOVING A REV LIMITER IS NOT REALLY A GOOD IDEA AS THIS CAN LEAD TO SERIOUS ENGINE DAMAGE RESULTING IN HIGH EXPENSE TO REAPER

The starter clutch is failed. The starter clutch is located on the back of the flywheel, so you'll have to remove the flywheel. The flywheel is difficult to remove and sometimes requires heat (torch) along with a three bolt type puller. Once the flywheel is off, the repair is fairly straight forward. Just remove the old clutch, paying attention to the direction of the rollers, and install the new one. The gear on the flywheel should also be replaced to insure good performance of the new clutch and starting system.

If the pull start is stuck, it is normally because it is kinked and knotted inside the coil housing. Take the top off, pull out the spool, rewind the rope, put back together, and pull start away!

ask a parts shop if they have one if not the computer or the library should be able to help

drive it off a cliff, its a 50

Replace the tyre. The only thing that keeps you on the road while riding a bike is the tyres. If you have any suspicions either replace it or take it to a tyre repair shop and see if they will fix it. I would re-inflate the tyre first and leave the bike over night to see if the tyre is sound or not. It may just be a failed valve.

Dirty fuel filter? Is your fuel valve in the ON position?

need to clean the carbrator if that dont work buy a repair kit at the parts house

bolts that are loss

your taming is of by 2 decress

rectifiers not working but check for corroded terminals before replacing

sounds like a fuel problem check for fuel in carb, if not check fuel freely running from tank when you turn engine, if does than it'll be floats in carb stuck

are your breaks binding, have you got a centre stand, can you spin the wheels freely#

While it could be a bad coil, the first thing I would check would be the plug wire. If the plug wire is integrated into the coil, then you may have to replace the entire unit. Check with your local Aprilia dealer or on the Internet for the closet dealer.

check for leaks and replace cap or rubber washer under cap