'08 crf150r - Honda CBR250R Forum : Honda CBR 250 Forums
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post #1 of 18 Old 08-23-2018, 09:24 AM Thread Starter
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'08 crf150r

Just picked this up this week -



Not raced, but in need of plenty of TLC (and parts).
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post #2 of 18 Old 08-23-2018, 10:24 PM
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Very nice. Big or small wheel? I had the big wheel version back when I used to ride dirtbikes. Absolutely LOVED it. I wish Honda would fuel inject that engine and put it in a street bike. Check for recalls, I believe early 2007 models had a camshaft recall, and certain 2008s(?) had a swingarm recall.


My only gripes with the bike was that the gearing was a little too short for longer tracks, and it was quite prone to bogging down low. It really doesn't like running below 4000 RPM. Allegedly has a rev limiter of around 14700 RPM, incredible for a single, but I like the 17200 RPM my MC19 does better The intake noise of that CRF was quite glorious.


Mine was ridden for several years as a trail bike and never rebuilt. I did not skip valve clearance checks however.
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post #3 of 18 Old 08-24-2018, 09:28 AM Thread Starter
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This is the small wheel version. I got it for about 1/2 of a normal/running price, or I would have looked for the big wheel version.

Cleaned the carb, ordered some parts, and picked up an oil filter today. Looks like it's a later model so no swingarm recall.

I've never ridden one, but it should be a blast.
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post #4 of 18 Old 08-24-2018, 11:14 AM
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And, the old lazy man's version (bigger engine, lower compression and revs) 230L:


John: '09CRF230L (Li'l Red Piglet), '89NX250 (sold)
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post #5 of 18 Old 08-24-2018, 11:32 AM Thread Starter
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I had one of these, back in the day -



We also have a CRF150F, and a CRF100F.
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post #6 of 18 Old 08-24-2018, 01:36 PM
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Btw why do a lot of dirtbikes have this hose (?) like things at the tank lid? Is that just something to prevent the lid from getting lost or has it another purpose? I've never seen something like that on a non dirt bike.

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post #7 of 18 Old 08-24-2018, 01:45 PM
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It is an air vent to let air into the tank when the bike is running. Just a hose stuck down the steering shaft.
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John: '09CRF230L (Li'l Red Piglet), '89NX250 (sold)
Propelled by Penguin Power
Nekkid motorcycles feel faster
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post #8 of 18 Old 08-26-2018, 10:26 AM
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Quote:
Originally Posted by jsonder View Post
It is an air vent to let air into the tank when the bike is running. Just a hose stuck down the steering shaft.
Thanks, but why don't other bikes need that? Or do they have that hidden away at a location where dirt might get into it in a dirtbike environment?

My computer is fighting Aids and Cancer in it's idle time, and yours?
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post #9 of 18 Old 08-26-2018, 12:14 PM
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If you have the shop manual, look at the fuel/fuel tank chapter and note that the tank has an extrusion for the attachment of an air line. This is normally near the top of the tank, the hose is "hidden" under the tank, so that it is out of sight.

Dirt bikes do/did not have as stringent antipollution rules. Honda street bikes from the 80's had vented fuel caps which were functionally the equivalent of the dirt-bike fuel caps with a vent hose.

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post #10 of 18 Old 09-04-2018, 10:16 AM Thread Starter
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Had some time at work, so I powder coated the pipe heat shield and valve cover in a gold texture powder very similar to what Honda uses on Magnesium covers.





Got the factory service manual last week, so I'll start pulling it apart shortly to see what I find.
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