Typical Valve adjustment question
  • NorCalCRF250x
    Posts:12
    Joined:Thu Aug 17, 2006 10:28 pm

    by NorCalCRF250x » Wed Jan 31, 2007 7:46 pm

    Well I finished it up tonight. Went down to the honda shop exchanged out my shims for what I needed installed them and the clearances all worked out perfectly .011 is a little tight but it goes in on the exhaust so within spec. Intakes both take a .005 but one is a little tight with the .005 so within spec still too. Nervous on the first start up even thought I rotated it over a bunch of times before i put the valve cover on. But it started up right away and ran great. So thanks for all the advice guys I appreciate it.
    2006 CRF250x
    White Brothers E2 Exhaust
    Works Connection Radiator Braces
  • Asmith
    Posts:14381
    Joined:Mon Apr 10, 2006 7:52 am

    by Asmith » Wed Jan 31, 2007 8:34 pm

    Nice job. Good luck, I hope they don't move a bit...ever.
  • [email protected]
    Posts:5039
    Joined:Sun Aug 14, 2005 6:21 pm

    by [email protected] » Wed Jan 31, 2007 9:10 pm

    Hey Doug, BTW that photo of the alignment marks did you take that? Is it your bike
    ?
    No, it isn't, I think it was gprodick's photo from an excellent post he had on the subject while installing a HotCam.
    The first time I checked the valves on my X they were ALL off, but just a little,which caused considerable gnashing of the teeth. Well, "look HARDER" (like on the Lion King) is what I did,and behold,another mark ! Then ANOTHER mark ! Eventually I discovered if I used one of the other marks (it turned out to be the right one)the clearances were all perfect,so I figured the odds of the valves being perfect if I used that mark would mean that I had found the right mark. Duh.
    An R head, with more flywheel weight and wide ratio gear box !

    Oh, what I meant by that guys was that the 250/450X's already have heavier flywheel weights and already have wide-ratio transmisions, do the combination of those things along with an R head could be very interesting :twisted: !
    Doug what's the 450R like?
    I'm thinking with more crude power coming from the engine any "lugginess" is less likely with this reason alone, but does that close-ratio GB slam, or what? I would have to think so.

    I just LOVE it. One of the advertisers in the magazines has a several page ad where they have all 5 major brands,and each one is for instance "The perfect Honda GP bike,then next "The perfect KTM GP bike,etc.,etc.
    Besides the additional motocross I'm doing this year,any kind of event withing a day or so drive that is similar to the western States "GP's" I will go to,enter
    and run. That kind of racing and the kind of bike configured for it is exactly the kind of riding I love. Off-Road, a lot of WFO places, big,swepping turns, natural (or mostly !) terrain big jumps, maybe 1 or two per lap....that's what I really like.
    So,any of you east of the Mississippi types that hear of something like that please let me know.
    The R with a Rekluse is magic. Not as plush and versatile as an X, but noticeably lighter and super agile.
    The 07 has amazingly smooth power fron idle on up with no real "hit".When I read that 'new for 07' characteristic I knew then I'd be buying one and installing the auto-clutch,because that kind of comination just sounded like it had huge potential for what I like to do .Trust me, the 'lugginess' you don't want it ain't got ! It will pull smooth as butter,very strong and very,very smoothly to the mid range,then it just starts ripping and you wonder how they go that transition so seamless.
    I would like to have the skills to be able to swaop out a whole transmission, but sadly I do not :oops: I sure admire the guys that do,though . Doug
  • stuart
    Posts:87
    Joined:Thu May 04, 2006 1:38 pm

    by stuart » Wed Jan 31, 2007 9:34 pm

    Doug the reason i asked if that was your photo is because i noticed the tranny oil level to be bang on the bottom of the large hole.

    And it got me to thinking if that is the correct level, when we do an oil change on our tranny side you could pull that cover for the timing marks and fill till it reaches the bottom of the hole. It seems the bottom of that hole is above the oil level hole that we DON'T use, so i assume the guys bike in the photo has a quart in the tranny.

    I know everyone will say "just put a quart in and forget it" but what i describe above would seem like a simple and fool proof way to do it. Any thoughts?

    Just an idea!

    Sitting here in my office, its 35deg c outside here again today, about 3.30pm and looks like a storm is brewing outside!
    CRF450X
    Big Gun Evo, Shark Fin, Pink Wire
    Airbox Mod, JD Kit (with o-ring)
    Ballards bar raisers, 49th Rear
    Hot Cam Stage2
    ________
    CRF230F Wife
    Big Gun Mini
    ________
    CRF100F Eldest Son
    _____
    KTM65SX, Peewee 80 and 50 for other kids
  • Asmith
    Posts:14381
    Joined:Mon Apr 10, 2006 7:52 am

    by Asmith » Wed Jan 31, 2007 9:48 pm

    stuart wrote:its 35deg c outside here again today, about 3.30pm and looks like a storm is brewing outside!


    Sounds nice!!!

    Have a beer ready, I'm on my way...
  • stuart
    Posts:87
    Joined:Thu May 04, 2006 1:38 pm

    by stuart » Wed Jan 31, 2007 9:50 pm

    I've got a XXXX Gold waiting for you. Sounds a bit suspect doesnt it, http://www.xxxx.com.au/
    CRF450X
    Big Gun Evo, Shark Fin, Pink Wire
    Airbox Mod, JD Kit (with o-ring)
    Ballards bar raisers, 49th Rear
    Hot Cam Stage2
    ________
    CRF230F Wife
    Big Gun Mini
    ________
    CRF100F Eldest Son
    _____
    KTM65SX, Peewee 80 and 50 for other kids
  • [email protected]
    Posts:5039
    Joined:Sun Aug 14, 2005 6:21 pm

    by [email protected] » Thu Feb 01, 2007 3:07 am

    That's an interesting idea Stuart.
    The last time I sat TDC the bike was leaning left on the kickstand (I'd put a kickstand on my R),there was a whole bottle of red stuff 946ml I think,and when the access bolt was loosened oil came running out at a oretty good clip, I rightened it back up and started draining it out via the crankcase drain,
    So, I'm not sure if that picture was a bike that had been using a whole quart or not.
    That beer sounds like an interesting idea too,especially along with the 35 degrees C.
    Lucky Australians . Annex Australia NOW ! Doug
  • stuart
    Posts:87
    Joined:Thu May 04, 2006 1:38 pm

    by stuart » Thu Feb 01, 2007 3:34 pm

    Yeh it was just a thought. Next time i do my trans oil change ill open it up and see how much i have to use to fill it the bottom of the opening. Why, i dont know, but i always worry about overunder filling, i like it when you can actually see. I wish the X had that cool oil level sight glass like the R, that would be even better.
    CRF450X
    Big Gun Evo, Shark Fin, Pink Wire
    Airbox Mod, JD Kit (with o-ring)
    Ballards bar raisers, 49th Rear
    Hot Cam Stage2
    ________
    CRF230F Wife
    Big Gun Mini
    ________
    CRF100F Eldest Son
    _____
    KTM65SX, Peewee 80 and 50 for other kids
  • [email protected]
    Posts:5039
    Joined:Sun Aug 14, 2005 6:21 pm

    by [email protected] » Thu Feb 01, 2007 7:04 pm

    I wish the X had that cool oil level sight glass like the R, that would be even better.

    I wish they did , it can't be like it's some big expense or something. Doug
  • NorCalCRF250x
    Posts:12
    Joined:Thu Aug 17, 2006 10:28 pm

    by NorCalCRF250x » Thu Feb 01, 2007 8:11 pm

    I just figured out what the bike is suppose to have by the book and I use a ratio rite to figure out how much to put in there. Seems to work with me no problems yet and oil has looked good everytime as has the tranny fluid has too.
    2006 CRF250x
    White Brothers E2 Exhaust
    Works Connection Radiator Braces
  • scoot scooterman
    Posts:3
    Joined:Mon Feb 19, 2007 3:43 am

    by scoot scooterman » Mon Feb 19, 2007 3:59 am

    well guys my 06 250x has done 1400km and it let me down on a ride. would not elect start or kick but clutched it real easy and yes valve adjustment.
    i just trail ride it and it has never been reved over 6200 revs i was told i should have got twise that many km out of it ????????????
  • User avatar
    JAWS
    Posts:4449
    Joined:Fri Jun 16, 2006 6:59 am

    by JAWS » Mon Feb 19, 2007 7:28 am

    True, that isn't a lot of miles. Did you check it now and then? How was your maintenance?

    Joe
    Image
    '05 CRF450X,McClain suspension, Cycra Probends, Pastrana FMX Pro Tapers,BRP Sub mount & Scotts stabilizer.See carb sticky for more
  • scoot scooterman
    Posts:3
    Joined:Mon Feb 19, 2007 3:43 am

    by scoot scooterman » Tue Feb 20, 2007 4:09 am

    well jaws this is the thing was never told about the valve adjustment i have owned XR's up until buying the crf and have only just found out the hard way i guess .
    Stumbled across this site and think it is awsome thanks to all you experienced guys inexperienced guys like me can start to understand more about the bike and others experiences
    P.S thanks to all :D
  • stuart
    Posts:87
    Joined:Thu May 04, 2006 1:38 pm

    by stuart » Tue Feb 20, 2007 3:38 pm

    Well first ride report after the Stage 2 cam and the new inlet valves is ALL GOOD! In fact i must have been down on compression for a while, engine braking seems better and it runs very very sweet, no popping on decel etc... I must admit the Cam seems to make it feel a little more tractor type and not as revvy as i expected, however the ride was all in single track and generally muddy and wet, so i didnt get too many chances to really open her up.

    Anyhow, I'm happy, I dont really care if i need more valve work in 3500K+ time, this bike is too much fun to bother worrying about it!
    CRF450X
    Big Gun Evo, Shark Fin, Pink Wire
    Airbox Mod, JD Kit (with o-ring)
    Ballards bar raisers, 49th Rear
    Hot Cam Stage2
    ________
    CRF230F Wife
    Big Gun Mini
    ________
    CRF100F Eldest Son
    _____
    KTM65SX, Peewee 80 and 50 for other kids
  • [email protected]
    Posts:5039
    Joined:Sun Aug 14, 2005 6:21 pm

    by [email protected] » Wed Feb 21, 2007 5:11 am

    must admit the Cam seems to make it feel a little more tractor type and not as revvy as i expected, however the ride was all in single track and generally muddy and wet, so i didnt get too many chances to really open her up.

    Fear not Stuart, wait'll you get 'er up around 550O rpm, and up, you'll be all smiles.
    It's pretty cool how that cam maintains and even improves low rpm pull, yet really shrieks up top. Doug

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