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Time to tidy up the 117 !

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#26 ·
Yeah big price difference. I would probably just do the basic race head for my little stunter. My smart friend didn't torque my head bolts right so I blew a headgasket yesterday. I'm hoping that's all the damage there is. I checked the valve lash and it's a bit off from what it was adjusted to when I put on the 88 kit. the exhaust side is up to .006 from .003 so I'm just hoping there's no head damage.
 
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#29 · (Edited)
The head in the pic IS NOT the V2 race head. Look at the cam cover its flat. Here is what the new V2 race head looks like. Here is 2 links .TB Roller Rocker Race Head V2 Kit for 88cc & 108ccZ50 CRF50 XR50 & Pit bikes - TB Parts - CRF50 XR50 Z50 88-Up - TBW9102 - TBolt USA, LLC and .TB Roller Rocker Race Head V2 108cc Big Bore KitZ50 CRF50 XR50 & Pit bikes - TB Parts - CRF50 XR50 Z50 88-Up - TBW9109 - TBolt USA, LLC Look at the pic close click on it. The new race head has a round cam cover and they dont make a 54mm piston for it yet so you cant get it as a 117.. Only a 88 or 108 so the head in the pic is of the older style race head.. They still make the older style brand new its just not the biggest head for a CRF50 that TB makes. This new one is.. ilder styly 25/22 valves. The new style 28.5/23.5 Here is the race head you have http://tboltusa.com/store/tb-roller...er-rocker-race-head-v2-108cc-big-bore-kitbrz50-crf50-xr50-pit-bikes-p-8607.html The valve tappet covers are different on the new head. They no longer take those stock round CRF covers there now oval thats the best way to tell..
 
#30 ·
If you look closely at his photo you can see it IS the new race head because you can see the roller rockers and that it has the new 3 bolt cam sprocket cover also it doesn't say it's a 117 it says it was a 117 but it was tired so he bought the NEW V2 88 kit an then the crank to make it a 108.
 
#33 ·
Bean573 said:
If you look closely at his photo you can see it IS the new race head because you can see the roller rockers and that it has the new 3 bolt cam sprocket cover also it doesn't say it's a 117 it says it was a 117 but it was tired so he bought the NEW V2 88 kit an then the crank to make it a 108.
Click to expand...
yep it is the V2 the cam cover is in with the intake mani.
 
#34 · (Edited)
Oh ok so you guys are saying he hasnt posted a pic with the NEW head on the bike. I was going off of the picture with the engine in the bike. And that engine has round tappet covers and the NEW head dosent use them. They are oval like +R head or KLX. Cool well lets get a pic with that head on an engine lol.. My bad thought everyone was talking about the pic with the engine in the bike. Where the bike is all black.. I made a booobooo.. :banghead:
 
#35 ·
Ok yeah you are looking at the bike photos before he bought the V2. It had a kitaco 117 SE-ultra in when he first built it but that motor was worn so I built him a V2 88 but he has now decided to upgrade to the 108. There is a pic of the new V2 head still in plastic.
 
Discussion starter · #38 ·
ive had the bike out for a ride , but with an 88 motor in it as I havnt got the 108 back

the zochie brakes keep fading even after they have been bled & it also has a 200mm rotor so you would think it would stop great

I purchased a ktm master cylinder as a mate has one on his zochies & it works a treat

Image
 
Discussion starter · #39 ·
I really should have kept this thread updated as the bike has seen lots if changes & is now well used !
I ended up putting a full new tb108 in the bike and this is how it turned out

Image


Had a few issues & decided to put the takegawa 88 back in

Image
 
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rdn50s
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