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January 22nd, 2021, 02:52 PM   #1
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I Ride: 2009 FE570, 2007 DR650, 1998 Gas Gas EC250, 2004 Honda CRF150
570 longevity question...

Hey guys. Just about to tear into the 570 and I have some questions for you all. Iíll try to keep it short but thereís some history. This thing is a 2009 with 13000 miles on it. It was that way when I bought it and those miles seem like hard-ish ones. I canít quite tell but there seems to have been some ham-fisted wrenching done. There was a screw toe-nailed into the 70 degree rear tank for the plastics. Someone obviously jacked that nut up and just decided to change the angle to go straight into the plastic of the tank and create a way worse problem and hope he never had to take the plastics off again. Same at the top of the front tank where they put a longer screw in the fuel pressure regulator and poked a hole into the tank and also stripped the threads. So with that knowledge of previous owners Iím not sure where this bike stands maintenance-wise over itís life. It also got stolen and wrecked while I owned it. I fixed a twisted triple and replaced the steering bearings. Itís straight and everything works.

So Iíve had all the suspension done at Super Plush in San Francisco and Iíve fixed all of the leaks in the tanks. I adjusted the valves when I first bought it and they were close. One of the shims had been indented a bit (concave on a flat side) which could be a problem but I havenít gotten in there since. That being said other than that small possible problem, everything I could see while the engine was open looked super clean. The splines on the final drive look great for that many miles with no cush hub. (I think it might have spent some time of itís life supermotoed.) The gas definitely boils but it doesnít yet have a fan kit. It usually runs great. It stranded me once with the fuel pump but I replaced it with CA Cycleworks. Now I think the injector needs cleaning so Iíll go through all the filters in the meantime and adjust the valves again to see if the new shim took a beating like the last one did.

All this to say, should I keep this bike and just love it and ride it or move one? I thought Iíd sell it and get a newer smaller displacement bike like a Beta 390 because this thing is such a monster in the slow stuff. But now Iíve gotten a 250 2 stroke to rip around and learn on so that plan is obsolete. Can I make this 570 my dirt fun dual sport bike and my DR650 my heavy road biased dual sport? With this many miles is it reliable enough to take into the desert and trust itíll get me out? I rode one 3 day trip around Jawbone canyon on this thing and it was so damn fun and ran great. Also carried the weight without protest.


So, should I keep it?

Is there anything I should look for while Iím in there adjusting the valves to see where the engine is at in itís lifespan?

Any advice on making this bike do another 5 or so reliable years where I can pack it up and feel great about going out on some hard trips.

Are parts still gonna be around to fix things, maybe do a top end if necessary?

I like working on bikes and I do all my own maintenance except suspension (so far). But Iím still not a great mechanic and I donít have a ton of time so I want to just ride and do oil changes. I donít mind doing deeper work like valves when they need to be done but I donít want to have constant issues Iím dealing with as this bike gets older.

What say the wise old 70 degree owners?!
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January 24th, 2021, 04:59 AM   #2
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Parts should available for more than 5 years. Not cheap to rebuild top end if using OEM. Clean/replace all 4 fuel filter , injector. Clean up any wire connections loose or corroded Dielectric Grease use it on all connections. Maybe get new plastic for the future it’s getting harder to find. If removing shrouds be careful/patient with the screws brake free is helpful let it set for days
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January 24th, 2021, 04:28 PM   #3
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I Ride: 2009 FE570, 2007 DR650, 1998 Gas Gas EC250, 2004 Honda CRF150
Originally Posted by Rainerio View Post
Parts should available for more than 5 years. Not cheap to rebuild top end if using OEM. Clean/replace all 4 fuel filter , injector. Clean up any wire connections loose or corroded Dielectric Grease use it on all connections. Maybe get new plastic for the future itís getting harder to find. If removing shrouds be careful/patient with the screws brake free is helpful let it set for days

Yup. Those screws in the shrouds are already stripped from the previous owner. Been looking for a way to get stripped holes rethreaded in that plastic. Iíll get into the motor in the next couple weeks and see if a top end is necessary. Not totally sure what to look for in that regard. Donít want to spend a bunch of money so maybe Iíd move on.
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January 24th, 2021, 04:32 PM   #4
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Originally Posted by Rainerio View Post
Parts should available for more than 5 years. Not cheap to rebuild top end if using OEM.

The KTM equivalents are just as expensive or is that not an option? Guess Iíll do some research on that and non-OEM.
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May 14th, 2021, 09:23 PM   #5
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Got an 8% leak down test result. I think thatís good enough to not spec the piston. The rockers are super beat. Iím replacing them and the rocker shafts with the new KTM ones with the groove for oil. Iím figuring the groove goes at the ďtopĒ even though with the 70 degree Bergs the top isnít quite the top. Replaced all the fuel filters and the injector. Any advice on putting new parts in? My dad gave me some assembly lube so Iíll make sure things are lubed up. Cam looks good. Might shine it up with some crocus cloth. Havenít decided. Got advice on both sides, one saying donít polish it and one saying definitely polish it.
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May 22nd, 2021, 07:59 PM   #6
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I Ride: 2009 FE570, 2007 DR650, 1998 Gas Gas EC250, 2004 Honda CRF150
So mid valve adjust. I took the cam out but the rockers wouldnít fall back far enough to access the shims. The manual says ďraise the rockersĒ and I remember distinctly the last time I adjusted valves I could roll them back all the way. I think. This time the intake rocker hits something that stops it. I took the intake rocker out and then the exhaust rocker freely rocked back all the way.

Is this normal? Is something drastically wrong.

Also I released the cam chain tensioner by way of just pushing up on the cam chain guide until it released (like you would on a table). The chain seems tight. Can it get too tight? The manual says to push from the top (with a special too) but I wasnít sure if this would create a different tension than compressing it from the bottom. I thought maybe that little button on the top was a different release than the full compression release. Anyway, Iím paranoid about the tension.
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May 24th, 2021, 08:03 PM   #7
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I think it has to be the intake rocker hitting the inside (right side) cam bearing. I canít imagine anything will interfere with anything else when the cam is in and everything is only moving hundredths of millimeters so Iím fairly sure Iíll just start it up and see what happens but let me know if this is a bad idea.

Otherwise itís coming along nicely. New rockers and shafts. Valves perfectly in spec (after many errors, math and otherwise). New injector and fuel filters. Wrapped my mid pipe and repacked my FMF canister. I hope to run it this weekend.
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