Well, it depends on what you want. If you want a netbook~ i reccommend the HP Mini 110 series or the HP Mini 210 series. The 210 series got better reviews than the 110 series, but it is your choice. If you want a laptop, i recommend anything. bi bi now
A commutator is the central part of an electric motor.
Yes, if the comutator in the pump is worn.
due to comutator
Camshaft position sensor of Mazda Milenia 2,5L DOHC is inside ignition distributor (the same part with iggnition comutator).
"Induction" motors imply AC power Most AC motors do not have brushes or commutator If your motor does have brushes, a lot of sparking where the brushes meet the comutator is a good indication that it needs to be cleaned and/or "cutdown". If your motor does not have brushes, then you have more serious trouble. Need more details
You make your own. From ebay seller, you buy a bigger brush and you grind it to fit. The original brush was 8.65 by 8.65. You also have to unsolder the metal end plate and attach the new brushes lead keeping the spring.http://www.ebay.com/itm/3010915864081 PCS 8mm x 16mm x 32mm Carbon Brushes for Generic Electric Motor
Answer 1 - When Starting Requires a "Jump"There could be several causes, but I suspect that the basic reason is that not enough electrical current is getting to the starter. The addition of another battery in parallel provides that extra "oomph" to turn the starter fast enough to turn the engine over fast enough to function and start. Some of the possible causes that I can think of right now include:A battery which is unable to provide the amount of current [measured in Amperes (Amps)] which the starter needs to spin the starter and engine fast enough.Corrosion build up on the contact surfaces at any point where connections are made, such as: battery/terminal/cable clamp connections, cable connections at the starter solenoid, connection of the cable at the starter, connections inside the starter such as, brushes to comutator etc.A cable or wire to the starter that has been cut or damaged so that it does not have the same cross-sectional area [diameter] anymore, and therefore resists the flow of current.A worn/defective starter solenoid.A defective starter [as in worn out brushes or "dragging" bearings or bushings which reduce the Rpm of the starter.Answer 2 - Another Possibility?Maybe a defective ignition coil or high tension lead?