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Thread: DR 350 needs some work

  1. #11
    Join Date
    Jan 2013
    Location
    Stupid Freehold Boro NJ
    Posts
    10,156

    Default

    A valve seat?! FFS.

    When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

    Glen
    -85 1150 es - Plus size supermodel.
    -Rusty old scooter.
    Other things I like to photograph.....instagram.com/gs_junkie
    https://www.flickr.com/photos/152267...7713345317771/

  2. #12
    Join Date
    Mar 2005
    Location
    West Slope, OR
    Posts
    11,866

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    Oops! Valve spring seat
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

  3. #13
    Join Date
    Nov 2013
    Location
    MoN, AZ
    Posts
    18,028

    Default

    Quote Originally Posted by Rich82GS750TZ View Post
    I don't think I've ever seen a translucent gas tank on any bike before. Leaves no question about how much fuel you have. That's really cool.
    That's old school, Rich. Several of our big Yamahas (the YZ360 and the 490) got those tanks when we decided we wanted more fuel capacity. They ain't pretty, but they're practical and resilient.
    "Thought he, it is a wicked world in all meridians; I'll die a pagan."
    ~Herman Melville

    2016 1200 Superlow
    1982 CB900f

  4. #14
    Join Date
    Mar 2005
    Location
    West Slope, OR
    Posts
    11,866

    Default

    Update time - the project has been stalled by bent exhaust valves, me damaging the new cam chain and a cam chain guide that has been back ordered for 3 months. That piece is supposed to arrive tomorrow.

    IMG_20200825_224301035 by T, on Flickr

    IMG_20200902_113152722 by T, on Flickr

    IMG_20200902_134304690 by T, on Flickr

    The FSM shows a special tool to hold the con rod, so you can tighten the flywheel nut, primary nut and balancer nut. This chunk of 5/8" marine plywood, with a slot cut in it, did the trick. Thanks to my friend TS, who just restored his utility trailer and had some scraps. With all the side stuff in place and tight, I put the piston and barrel on

    IMG_20200925_163236451 by T, on Flickr

    The guide goes between the head and the barrel, so it's wait time
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

  5. #15
    Join Date
    Mar 2005
    Location
    West Slope, OR
    Posts
    11,866

    Default

    The other outstanding issue was the exhaust. The header was stuck in the muffler. The assembly wraps around the frame.so I had to remove the top end, starter, electrics, air box and rear fender to get it off the bike. I have been soaking the joint in Deep Creep for months, and it's still stuck.
    My propane torch ruined the paint, but nothing else. So, off to my mechanical genius Jeff, who applied a real torch with the same nonresults. So, we brainstormed, then tinkered. We got the packing to move in the muffler, then about 45 minutes of tapping with a hammer, applying 2 large pipe wrenches to rotate it and many bad words, it moved. And, moved a bit more. Then, I applied vertical force and, bit by bit, it rotated more and moved up. Out it popped. It looks like there was some weird corrosion has it stuck together. Jeff tried grinding off with a variety of abrasives and we ended up with this

    IMG_20201007_224234193 by T, on Flickr

    It's that black stuff at top left, it goes around the back. This morning I wire wheeled it and polished it with emery. Prime and paint is underway

    IMG_20201007_224220729 by Tn, on Flickr

    Our work wouldn't be possible without this cool pipe attachment for his middle sized vise. There's no way we could have applied the amount of brute force required without it.

    IMG_20201007_224250762 by Tn, on Flickr
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

  6. #16
    Join Date
    Nov 2013
    Location
    MoN, AZ
    Posts
    18,028

    Default

    Love that little bike.
    "Thought he, it is a wicked world in all meridians; I'll die a pagan."
    ~Herman Melville

    2016 1200 Superlow
    1982 CB900f

  7. #17
    Join Date
    Mar 2005
    Location
    West Slope, OR
    Posts
    11,866

    Default

    Well, I got it this far, put the tank on and, Voila!

    IMG_20201013_163306617 by T, on Flickr

    IMG_20201013_163313883 by T, on Flickr

    One of the oil drains is leaky and the carb is flooding. But, it runs! Fixing both tomorrow. I think there's still some tools in my tool box
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

  8. #18
    Join Date
    Mar 2005
    Location
    West Slope, OR
    Posts
    11,866

    Default

    The oil drain wasn't torqued when installed
    The leaky carb was a dried up float bowl gasket, which is a giant O ring. Luckily, my nearby dealer had one in stock

    VID_20201014_180416494 by Tn, on Flickr

    I had enough time to ride it up and down the street before dark
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

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