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Posted on Jan 02, 2017
SOURCE: Drain and change oil
I can't tell you all the particulars from the limited amount of pictures of your bike. -Remove the oil drain bolt on the bottom of the crankcase (the universal bolt size for bikes use a 17mm wrench). -Drain the oil (remember to recycle). -Re-install the drain bolt with a new sealing washer if necessary. -The oil fill cap should be some where on the top of the crankcase. About 1 or 25mm in diameter with a raised tab for turning. -Fill with recommended oil. -There are 2 ways to check oil level on dirt bikes: 1) Oil level check bolt. On the right side cover. 2) Oil level site glass. A 1 round piece of glass on the side of the crankcase. Usually by the kick start & R brake lever. -Always check the oil level with the bike upright (as if you were sitting on it). -Check bolt - fill with oil slowly until oil comes out of the check bolt and re-install it. -Sight glass - fill with oil to cover 3/4 of the sight glass. -Remember to hold the bike upright when adding oil.,
Posted on Nov 10, 2008
looks like you have a nut at the rear of thr swing arm, one on each side, these are the rear wheel/chain adjusters. slacken the wheel nut and then adjust the nuts, there should be some kind of markings on the swingarm so you can get both sides the same. when done tighten the wheel nut and you are done
Posted on Mar 26, 2009
SOURCE: engine not running
Your carb should have another jet. What you cleaned was the main jet in the center of the carb. There should be another jet called a pilot jet. Often it has a metal plug covering it up so the setting can not be changed at that point. Instead, they want you to change the setting with the pilot air screw. In each case, if you remove the screw, count the number of turns for removal and put the screw back the same number of turns.
The pilot jet controls the idle. It picks up gas from the float bowl then the gas gets metered by the jet and the air screw then passes through a circuit (drilled passageway), in the carb casing and comes out in the center of the carb close to the needle jet. You will need to get the jet and circuit cleaned.
Posted on Jul 08, 2009
Hi I have a derbi senda sm 2005 Just brought a kickstart shaft but carnt rember how to fit it n how the springs go If any1 can help please let me no
Posted on Mar 18, 2010
SOURCE: i want to have more horsepower
Hey. Replacing the stock cam with a performance camshaft will help. To gain more horsepower you should also make the airflow to the engine better. Replacing the stock sylinder with a big bore 150cc kit will sure make the engine more willing. The engine on a 08 Derbi senda baja model, is the same engine that you will find on a Yamaha TTR 125. So that is what you should search for. Hope it helps:)
Posted on May 22, 2010
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