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September 17th, 2015, 10:09 AM   #11
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Originally Posted by maKe View Post
Is there any possibility to install the oil pump incorrectly?
I can not see that happening if you want the shafts and rotors installed so the cap and plastic gear drives fits back.

I don't have a compression tester that fits in the berg head. If it really is oil pump issue and it ruined my fresh motor I'm done with the bike. Built it back slowly so I could catch any mistakes while assembling it back.
The pump's are problematic as the KTM 530's and could go bad with something like gasket material getting in the right place at the wrong time or possibly the pickup coming loose.
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September 17th, 2015, 01:26 PM   #12
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Crap for you hope it's a cheap EZ fit for You. Will be opening up a FX450 soon in trying to get as much information as I can be for I do.
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September 17th, 2015, 02:11 PM   #13
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Have you checked the oil squirter that mounts to the case - the one that squirts under the piston? Could it be plugged and not getting oil under the piston?

Bummer about the motor.
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September 17th, 2015, 02:13 PM   #14
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[QUOTE=maKe;165449]Crank is locked at tdc. Is this correct timing for the crank position sensor...?
[QUOTE]


Looks like it is at TDC to me.
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September 17th, 2015, 05:06 PM   #15
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Originally Posted by Torque Monster View Post
Have you checked the oil squirter that mounts to the case - the one that squirts under the piston? Could it be plugged and not getting oil under the piston?

Bummer about the motor.
Exactly I hooked a drill to the pump and spun it around 3500rpm and Nada out either squirter.
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September 18th, 2015, 08:56 AM   #16
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Wohooo....
Attached Thumbnails
Shut down at 60mph after rebuild, won't restart anymore - 2011 FS570-20150918_184143.jpg   Shut down at 60mph after rebuild, won't restart anymore - 2011 FS570-20150918_184209.jpg  
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September 18th, 2015, 10:11 AM   #17
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That's brutal.

No oil to the piston surely. I feel the pain.
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September 18th, 2015, 01:21 PM   #18
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Still somewhat unclear what caused the piston seizure. That was intake skirt in the pic. Exhaust side seemed untouched. Intake valves leak now, so might need to cut the seats if they are badly hammered. Hopefully I can reuse the valves. Can the titanium intake valve seat surfaces machined out, or are they trash can stuff if they have wear?

Oil squirter wasn't blocked and oil flowed freely when testing with compressed air. Head was full of oil and rocker shafts also. That seems to indicate oil was flowing.

What troubles me is that the suction side oil screen (the one near oil drain plug) was full of crap that blocked the screen completely. Not aluminium mostly as it was catchable by magnet. Felt like a silk screen or some sort cloth. Found a small piece of that stuff in the crankcase too. Oil filter was clean and oil also.

I'm starting to think that the ceramic coating that I applied in the head caused this. As it was clearly flaked off on most spots. The ceramic on the piston crown was also flaking. The bits and pieces were captured between piston and cylinder, and the rest is history...

Cylinder looks like it's reusable. Scuffed the aluminium what was left of the piston skirt off from cylinder walls, and found no markings or scratches whatsoever. Need to check plating condition and bore with bore gauge before final decision.

610 or similar motor is tingling on my back, but I'm not sure if I have faith in the bike anymore until I can be sure of what caused the failure this time.
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September 19th, 2015, 04:11 AM   #19
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stay positive dude you had your share of bad luck with this bike you got a lot of time/money/effort invested it would be a shame to give up now.
Hope you can enjoy your wonderfull bike again soon

A couple of weeks ago I contacted fp engineering about the big TB do you mind me sending you PM because my tuner said some things about it that I want to verify with someone who has actual experience with it...

Ps if you want you can try my ecu with the higher rev limit I got from fp engineering specialy mapped for big tb maybe wit the higher revs you can get to the magic 70 hp
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September 19th, 2015, 12:40 PM   #20
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Thanks mate for the positive feedback! I'll try stay strong and not give up too easily.
Hit me up if you have any questions! I'll try to be as much help as I can.

Very interested to try the ECU. I had similar plans with my stock ECU that I would flash 450fx file in it with 11k limiter. Do you still run stock ecu or aftermarket? The GET ecu is the only thing I'm missing. For now I'll try to get the bike back on the road. Found my stock piston and rings inside the garage. Time to do hi-comp version from that. Deck the cylinder so the piston sits above deck slightly and aim for close to 1mm squish. Might have to put the piston on lathe to reduce the dish and lower the cc. Have to watch out top ring to piston crown distance not getting too close. Have one modified cam still left that I think I'm trying to get work. The decomp lobe needs some machining and have to check also cam base circle runout. First cam version was horrible so much valve train noise.



I've had some bad luck with my toys this year, and been out of the game for the most part of the year. I crashed my pride and joy 4 wheeled supermoto early this year after most of the snow was melted. Now it has been in a body/paint shop for 3 months and still not finished completely...

Bought this thing last year from Japan, because I like to go sideways with more than 2 wheels also. Best decision after the Berg.











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2011, 60mph, anymore, fs570, rebuild, restart, shut



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