Bought '07 CRF 150 for grandson...advice please. - Honda Motorcycles - FireBlades.org
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post #1 of 26 Old 03-18-2013, 10:25 AM Thread Starter
 
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Bought '07 CRF 150 for grandson...advice please.

Bought a Honda CRF 150 ('07 model?) for my grandson, age 10. Bike is in immaculate shape; it's been in storage for 2+ years by grandparents of a spoiled kid who literally never touched it. They can't find any paperwork...they "think" it's an 07 model....?

There is fuel in it; smells rancid; and it won't start, of course. I'd appreciate some advice; I can fly the hair of our Army's helicopters and am fairly good at mechanic stuff....but I'd sure appreciate some experienced recommendations.

1. I opened the top of the carburetor and sprayed some carb cleaner down the throat to "test the waters"....and surprisingly, it sputtered for a few seconds.

2. Can I find an owner's manual for this online?

3. Any advice on how to proceed is appreciated; I know it's quite broad...I need to drain all that rancid fuel first. Recommend high octane fuel?

--Bryant
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post #2 of 26 Old 03-18-2013, 12:13 PM Thread Starter
 
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Re: Bought '07 CRF 150 for grandson...advice please.

http://campaigns.hondampe.com.au/Mot...CRF150R-RB.pdf

An exceptional shared posting; thought I'd pass along.
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post #3 of 26 Old 03-18-2013, 3:22 PM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

There should be a tag along one side of the frame near the head stock.. It will give the VIN as well as the model year.

As for starting it.. Remove all the old fuel, put in fresh fuel and maybe some kind of carb cleaner/injector cleaner. It might take a bit to get it to start.

You may even have to pull the carb off and give it a cleaning.

James Taylor
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post #4 of 26 Old 03-18-2013, 3:31 PM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

For sure get rid of the old fuel and get the oil changed. You'll likely have to pull the carb and have it cleaned. A new spark plug probably wouldn't hurt either.

If the bike isn't braking properly, you don't start by rebuilding the engine.
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post #5 of 26 Old 03-18-2013, 4:02 PM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

is the the 150f or the racing 150R? there is a huge difference, the f is air cooled and made for trail riding and the R is liquid cooled and much more high performance. and if the bike is in near mint shape its a pretty safe buy, its gonna take some work to get going but most Honda bikes are bullet proof if there is proper maintenance. There is a possibility to find a manual online but its gunna take some searching.
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post #6 of 26 Old 03-18-2013, 6:41 PM
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Re: Bought '07 CRF 150 for grandson...advice please.

ON the left side of the bike, at the bottom of the carb is slotted screw. thats the drain for the carb. Open that to get all that nasty old gas out of the carb. I wouldn't try to start it until you get fresh gas in there, the 07 carb has some very tiny jets and orifices that clog easy, and tend to run lean.

curious to know, what model 150?

You'll probably have to remove the carb and bench clean it. I've had to do it twice on my '07 crf450x
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post #7 of 26 Old 03-19-2013, 8:29 PM Thread Starter
 
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UPDATE ON CARB: Bought '07 CRF 150 for grandson...advice please.

I removed and drained the tank; pulled the carb and cleaned it as well as I can on the bench of my workshop. I don't know carbs so I'm certainly not sure that I got into all the places.

Put it back on, poured in about a pint of 93 octane gasoline and tried to start; not even a sputter. So, I unscrew a cap on the top of the carb thru which the throttle is linked; down that throat I spray more carb cleaner or dump some 93 octane gasoline, put cap back on, hit starter and it starts and accelerates for about 2-3 seconds with nothing further. I've done this at least 5 times; each time, starts and accelerates for 2-3 seconds then nothing.

What now? Take the carb to a professional for a rebuild? From my untrained perspective, sounds like fuel is not reaching the carb.

Thoughts?
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post #8 of 26 Old 03-19-2013, 10:55 PM
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Re: Bought '07 CRF 150 for grandson...advice please.

That's just what my bike did. You have to go completely thorough the carb, clean all the jets, soak the body, I even used the super fine drill wires for a cutting torch head to get the smallest bit through the starter jet. That's the one that plugged up on me. Mine runs now, but no doubt it's lean. I try to put the best gas I can get in it, and drain it if not in use.
I think you can get a re-jet kit for about $50 that comes with different sizes.
Does your bike have smog stuff on it to be a Green bike?
Oh Yeah, new plug could hurt at all either!
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post #9 of 26 Old 03-20-2013, 2:05 AM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

exactly what jondog9 said, just take the carb all apart, its not that complicated, just take out each part clean it and reinstall it. I'd change the plug too while your at it, and make sure the gas is on, stupid mistakes happen to the best of us
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post #10 of 26 Old 03-20-2013, 2:39 AM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

Make sure your fuel line is clear. Soak carb take out and blow thru those jets with compressed air and be sure you can see thru their orfices. There's nothing to that carb. Take few mins to look over it carefully reassemble and should start easily. 2 1/2 turn out air fuel mixture screw and around 1 3/4 on idle screw.
Hope your grandson is riding it soon. :-)
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post #11 of 26 Old 03-20-2013, 5:38 AM Thread Starter
 
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Re: Bought '07 CRF 150 for grandson...advice please.

Thank you all; I will give it a shot for soaking it myself. All of your advice is substantial and I'll update on how it's going. Thanks again, fellas!
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post #12 of 26 Old 03-20-2013, 8:31 PM Thread Starter
 
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Re: Bought '07 CRF 150 for grandson...advice please.

I've cleaned every single piece of this Keihin carb. Nothing without pouring gas down the throttle throat.

Took it off and took it to the local Honda dealer; service tech set the mixture with this "D shaped" tool and told me to adjust idle. It "tries to start", in that I mean it sorta sputters, comes to a very slow idle every 4th or 5th start attempt. If I pour gas down the throttle throat, it'll start and accel smoothly for about 2 -3 seconds.

In this "tries to start", it will not accept throttle; not even a touch.

Rebuild kits either non-existent or on back order. I'm about to throw $190 at a new one and be done with this.
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post #13 of 26 Old 03-20-2013, 9:38 PM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

Oxygen,Fuel,Spark=Go Check your air filter sounds stupid but ive seen em so bad the bike will only run for a second or two. Check gas line and make sure gas is on. Did you pull all the jets out and clean them when you cleaned the bowl? And make sure your spark plug is good( not smashed and getting spark.)
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post #14 of 26 Old 03-20-2013, 11:45 PM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

Are you getting fuel to the float bowl? Turn fuel on and loosen screw at bottom of the float bowl see if gas is running out if not clear your tank to carb line.

ARE YOU SURE YOUR JETS ARE CLEAR?
could you see light thru the tiny hole in the jets?
You did unscrew the two jets correct and clean them?
its something silly man those Lil hondas are indestructible don't get fed up yet and buy new carb. Unless you bash it with hammer lol
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post #15 of 26 Old 03-21-2013, 10:20 AM
 
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Re: Bought '07 CRF 150 for grandson...advice please.

If it is coming to a slow idle, you may have to turn up your idle.

Not sure about the 150s, but is there not a choke anywhere?

James Taylor
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