20 Most Recent 2005 Honda CRF 150 F Questions & Answers

Please check ignition coil, correct contact of keys and switches , and important to check for open or peeled wirings responsible for disconnected paths,

four stroke motorcycle oil 20w40 or similar, the bike shop you purchase it from will help. do not use car engine oil

The idle screw and the air screw on the outside throat of the carb must go back in the same locations they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. If they are tightened as a normal screw would be, they are ruined.

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New ht lead

U have to pull the motor ,split the case replace the shaft and seal and reassemble.Get a book

Stuck throttles can be a number of issues, but here are some possible cause:
Cable rusty or frayed..always keep them lubed up
If a slide carb, sometimes residue can cause the slide to stick if been left for a long time.
Incorrect cable routing

If the bike still has good compression and no more leaks after topping up coolant and normal riding then I think you will be OK.

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Chances are that water condensation in the gas tank has collected in the carb float bowl. There should be a drain plug on the float bowl. Go ahead and drain the bowl with the gas valve turned off. After the bowl has drained, turn the gas back on and let the gas tank drain a half cup or so. This should rid the tank of water. No adjustments are needed. Your carb has a plug on the bottom of the bowl. Please rate my answer. Thanks.

The oil plug location can be referred from the below diagram



To change the oil on a 150F you have to take a cap off it takes a big socket set to do this. The cap is right next to the shifter. once the cap is off a spring is right behind it and and filter behind that keep those parts for later. the oil will begging to come out and you need a pan to catch it. When all the oil is out put the assembly back in and fill the bike with 10w - 30 oil. you need about 1.1 quarts.
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same as car. drain the plug. put it back in. drain the oil filter and replace. replace oil start her up. kill her. let her sit. check oil. add if needed

Ethenol may have it stoped up...take a real fine wire and run thru the jets then blow it out....iwork on lawn mowers and have the same problem..good luck

you have to loosen the back tire a little and use the tentioner on the back of the swing arm to tighten the chain