Dust to Glory 360

Discussion in '2 smokers' started by Mrs forrest_fire1, Feb 17, 2012.

  1. slideways

    slideways permanent ex-pat

    Joined:
    Mar 1, 2003
    Oddometer:
    7,441
    Location:
    The Bahamas Mon.
    #21
  2. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    Sure it's speed and sport inc they have lots of stuff also economy cycle has good stuff :evil
    #22
  3. MightyChosen1

    MightyChosen1 I wanna be sedated

    Joined:
    Sep 17, 2008
    Oddometer:
    1,719
    Location:
    Central,IL
    Looking foward to see this project come together. My beat up old 73 RT-3 is been sitting out in the shed for a year but I hope to get to it sometime soon.

    [​IMG]

    Like someone said . Lots of power but not much in the suspension department. I need to upgrade to rears shocks and brakes before I start riding it again.
    #23
  4. Gundecker

    Gundecker aka fng

    Joined:
    Nov 17, 2009
    Oddometer:
    253
    Location:
    Biloxi
    Great re-build report.I spent some formative time on my brothers DT 360 back in the late '70s.They have a distinctive sound and feel.I can't wait to see the project completed and hear your ride impressions.
    #24
  5. Mrs forrest_fire1

    Mrs forrest_fire1 Adventurer

    Joined:
    Feb 16, 2012
    Oddometer:
    19
    Location:
    Madras, Or
    Right from the start of the day I began to continue cleaning the dirt and grime off the bike. It seams like an endless task, but I can tell I'm making progress. I grabbed the gas tank and clean off the outside, then I dared to take a peek at what the inside of the tank had in store for me. I was so surprised to find that the tank is in excellant shape. Thankfully it was completely out of fuel when stored, so it didn't have any bad fuel gunk and there wasn't a lick of rust. :nod Yes!!!, I manage to remove the hoses attached, which turned out to be quite the challenge as the hose was removed in multiple pieces. Finished up the tank by putting on fresh fuel lines and a little Dot 5 for some extra shine.

    That afternoon my piston and gaskets arrived in shipping. My husband said he will do his best to get the piston ported for me ASAP, but he does have a shop to run. Hopefully it will be sooner than later :D. So I'm at a stand still with the engine, until the piston is completed. Then I will send the piston and cylinder in to get hoaned/bored.

    It was an excellant Central Oregon winter day, sunny in the mid sixties. I was itching to take the dirtbikes out and go for a ride. Well.... the previous weekend (while I worked) my husband and his father-in-law went riding on some fresh built trails by COMAC (central oregon motorcycle & ATV club) and the forrest service. My father-in-laws bike is currently out of service until he finishes rebuilding his carburetor. So, needless to say, my bike was used. Which is fine and dandy, until it's returned to me missing a few exhaust bolts. So I got distracted from my RT1 project to fix the exhaust and put a new seat cover on my bike, cause I wanted to go riding the next day, when my husband was off. On a side note: we ended up not going riding as planned the next day, because we woke up to 3 inches of new snow and that ment the riding areas, easily had double the amount of snow :(:

    Back to my report.

    My next step was to begin working on the forks. One seal is leaky and I'm sure the oil is just rotten. I could just clean the seals really well, but it would be so simple to just change everything out. The research began. OEM seals are non-existant, so I just can't order them from our OEM dealer. The aftermarket books that we have doesn't even list RT1 360 bikes. I then turned to the internet to hopefully find something. I came across this Ebay sale and they had listed these seals that were for MX 125, 250... DT1 & RT1. Hmmmm...... so I went back to the aftermarket catalogs to see what those bikes all took or if they were listed. The MX 125 & 250's and DT1's were listed and they all take the same fork seal. It makes sense that in 1972 yamaha only had a handful of fork sizes compared to today's market. Though before ordering any seals (or wasting money) I want to confirm that these seals for the MX & DT's will also fit the RT1's. Does anyone know if this is accurate? I plan to try and call up the store rep for yamaha eventually and confirm this, but what do my fellow bike enthusiasts say? My next question for you, does anyone have any experience on the best weight for fork oil to use in the RT1's? I plan to use the bike for on road/dirt road use. Input is greatly appreciated here.

    Sometimes I find myself easily distracted when I'm researching stuff on the internet. I started searching out seals, then I was checking out what other RT1 parts were available on ebay, then I'm checking out accessories and the process goes on. I finally got back on track and went back to the RT1. I priced out some fork oils, just to get an idea of how much I will spend.

    I probably just need to pull of the forks and just check out the condition of the seals and everything else. I think that's what I'll do next.

    Day 3 wasn't that super productive, but I did learn a fair amount of information while researching. It's just unfortunate that time flies by when doing this. So not pictures were taken, but I'll definately take more the next time I work on the bike.

    Until Next Time.....
    #25
  6. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    You need some sleep :rofl. I am just as bad with my RD400, read and read, then some more, look at yamaha-motors parts catalog, the have schematics, which show you the assyblies, I am nearly done with mine, now when I can get my license and the rain stop :puke1, I will be riding it :D
    #26
  7. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    Ok I did a search for you and Yamaha-motor USA said the have the seals :evil, to get them you just send an email to your local dealer and the get then from Yamaha :clap
    #27
  8. Hunsta

    Hunsta Have guns will hunt

    Joined:
    Jan 25, 2006
    Oddometer:
    5,492
    Location:
    Gympie Queensland Australia
    Do yourself a favour and just change the seals. Weather the old ones look good or not, its a pain to have to redo the forks if you find the old one sh#t themselves after the first hour. As for the ebay bay ones, go for it. Ive ordered mine of ebay for my 76 DT250. Way cheaper and just as good as OEM ones
    #28
  9. Stromius

    Stromius Part time danger seeker

    Joined:
    Jan 28, 2011
    Oddometer:
    73
    Location:
    Seattle, WA area
    Great thread and great save!

    I did a frame off restoration of a 1969 Yamaha CT1 and had lot of fun. I found bikebandit.com had OEM parts and diagrams. Not all parts are still available but eBay vendors still sell a lot of NOS and used parts that worked out great.

    Definately replace the seals (2 crank, sprocket, kick start and oil pump shaft). These dry out and don't seal after 40 years :). When they fail, they'll either allow extra air into the crank case (engine revs out), sucks oil into the crank case (007 style smoke screen) or just empties your crank oil onto your garage floor :cry.

    I bought a complete seal set from eBay for $15. I also found a carb rebuild kit for about the same. I got a tip to use Berryman's to clean the carb varnish as well that's usually in the fuel bowl.

    Good luck on your project!
    #29
  10. nsu max

    nsu max Been here awhile

    Joined:
    Dec 31, 2008
    Oddometer:
    399
    I hope this helps with oil pump.
    1) As you look at the pump starting on the left side you will see a white plastic gear if you look closly you will see an arrow on the face of the gear pointing in the direction that the gear rotates when the engine is running.
    2) Then if you look at the the hose next to the gear there is a phillip head screw with a red fiber sealing washer next to the hose, if you remove the phillip head screw (don't loose the red sealing washer) a bit of oil will/should run out.
    3) Now if you take a finger and rotate the gear in the direction the arrow is pointing oil should come out of the hole that the phillip head screw was in. If oil pump cable is pulled and the black pully is moved more oil should come out of the hole.
    4) Don't forget to put the screw back in and snug it up.
    5) For proper oiling the pump is adjusted with the engine idling, the cable adjuster is tightened or loosened to line up the line or ridge on the cable pully with the pin next to it.
    Thats how you check the oil pump, this is also how the pump gets primed or air bubbles are cleared from the oil line if you change the old oil or if the tank goes empty.
    #30
  11. Copperhead64

    Copperhead64 n00b

    Joined:
    Mar 2, 2012
    Oddometer:
    9
    Location:
    West Tennessee
    Bought this one off a friend for $200,rolled it off the trailer,dumped some premix in the tank and away I went!
    Old bike would make your hair bleed.
    Good luck with yours,
    It'll be awesome when you finish.:wings
    My 15 year old rode it everyday for a month till it roasted a piston skirt and I traded it.Had the stock piston from 74 best that I can tell.
    [​IMG]
    #31
  12. Cat Daddy

    Cat Daddy Been here awhile

    Joined:
    Mar 9, 2008
    Oddometer:
    887
    Location:
    Third trailer on the left
    Fork seals for your bike are Yamaha number 278-23145-51-00 and still quite available. Powersports Plus has them.

    http://www.powersportsplus.com/parts/detail/yamaha/YP-278-23145-51-00.html

    That same seal fits the following bikes...

    1967 YR1 FRONT FORK
    1968 DT1 FRONT FORK
    1968 YR2 FRONT FORK
    1968 YR2C FRONT FORK
    1969 DT1B FRONT FORK
    1969 DT1S FRONT FORK
    1969 R3 FRONT FORK AND FRONT FENDER
    1970 DT1C FRONT FORK
    1970 DT1CMX FRONT FORK
    1970 R5 FRONT FORK
    1970 RT1 FRONT FORK (RT1, RT1M)
    1970 RT1 FRONT FORK (RT1B,RT1MX)
    1970 RT1M FRONT FORK (RT1, RT1M)
    1970 RT1M FRONT FORK (RT1B,RT1MX)
    1970 XS1 FRONT FORK (XS1)
    1970 XS1 FRONT FORK (XS1B)
    1971 DT1E FRONT FORK
    1971 DT1MX FRONT FORK
    1971 R5B FRONT FORK
    1971 RT1B FRONT FORK (RT1B,RT1MX)
    1971 RT1MX FRONT FORK (RT1B,RT1MX)
    1971 XS1B FRONT FORK (XS1B)
    1972 DS7 FRONT FORK
    1972 DT2 FRONT FORK
    1972 DT2MX FRONT FORK
    1972 R5C FRONT FORK
    1972 RT2 FRONT FORK
    1972 RT2MX FRONT FORK
    1972 TD3 FRONT FORK
    1972 TR3 FRONT FORK
    1972 XS2 FRONT FORK (XS2) (TX650 - )
    1973 DT3 FRONT FORK
    1973 MX250 FRONT FORK
    1973 MX250A FRONT FORK
    1973 MX360 FRONT FORK
    1973 RD250 FRONT FORK
    1973 RD250 FRONT FORK RD250B
    1973 RD350 FRONT FORK
    1973 RT2MX FRONT FORK
    1973 RT3 FRONT FORK
    1973 SC500 FRONT FORK

    1973 TX500 FRONT - FORK
    1973 TX650 FRONT FORK (XS2) (TX650 - )
    1973 TZ250 FRONT FORK
    1974 MX250A FRONT FORK
    1974 MX360 FRONT FORK
    1974 MX360A FRONT FORK
    1974 RD250A FRONT FORK
    1974 RD350A FRONT FORK
    1974 SC500A FRONT FORK
    1974 TX500A FRONT - FORK
    1974 TX650A FRONT FORK TX650A - XS650B
    1974 TY250A FRONT FORK
    1974 TZ350 FRONT FORK
    1974 YZ250A FRONT FORK
    1974 YZ360A FRONT FORK
    1975 DT250B FRONT FORK 250B - C - 400B - C
    1975 DT400B FRONT FORK 250B - C - 400B - C
    1975 MX250B FRONT FORK
    1975 MX400B FRONT FORK
    1975 RD250B FRONT FORK
    1975 RD250B FRONT FORK RD250B
    1975 RD350B FRONT FORK
    1975 XS500B FRONT - FORK
    1975 XS650B FRONT FORK TX650A - XS650B
    1975 YZ250B FRONT FORK
    1975 YZ360B FRONT FORK
    1976 DT250C FRONT FORK 250B - C - 400B - C
    1976 DT400C FRONT FORK 250B - C - 400B - C
    1976 MX125C FRONT FORK
    1976 RD400C FRONT FORK
    1976 TY250C FRONT FORK
    1976 XS650C FRONT FORK XS650C
    1976 YZ100C FRONT FORK YZ100C
    1976 YZ125C FRONT FORK YZ125C
    1977 RD400D FRONT FORK
    1977 TY250D FRONT FORK
    1977 YZ100D FRONT FORK YZ100D
    1978 RD400E FRONT FORK
    1990 MOTOCROSS - YZ250A FRONT FORK
    #32
  13. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    Hey, I told you guy's Yamaha keeps them simple, most of the time :huh, till you go to a 79 RD :eek1 35mm forks :lol3
    #33
  14. Cat Daddy

    Cat Daddy Been here awhile

    Joined:
    Mar 9, 2008
    Oddometer:
    887
    Location:
    Third trailer on the left
    #34
  15. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,535
    Location:
    Oregon City Orygun
    #35
  16. Andyinhilo

    Andyinhilo Long timer

    Joined:
    May 16, 2008
    Oddometer:
    1,763
    Location:
    Hilo, Hawaii
    #36
  17. Hunsta

    Hunsta Have guns will hunt

    Joined:
    Jan 25, 2006
    Oddometer:
    5,492
    Location:
    Gympie Queensland Australia
  18. southforkspeedster

    southforkspeedster koolaidless

    Joined:
    Oct 25, 2005
    Oddometer:
    2,017
    Location:
    the dry side of Oregon
    :lurk

    so............must have been riding on Sunday............sure nice weather for it:deal
    #38
  19. Motoduc1

    Motoduc1 backtrackvideo.com

    Joined:
    Jun 28, 2006
    Oddometer:
    1,030
    Location:
    Nebraska
    Love it...don't quit!
    #39
  20. Mrs forrest_fire1

    Mrs forrest_fire1 Adventurer

    Joined:
    Feb 16, 2012
    Oddometer:
    19
    Location:
    Madras, Or
    You know us so well! We had to check out the new single track trails that recently opened up in one of the riding areas.
    #40