collapse

www.dimecitycycles.com


www.restocycle.com

www.CITYLIMITMOTO.com

www.jadusmotorcycleparts.com

www.bisonmotorsports.com

www.speedmotoco.com

www.cognitomoto.com

www.townmoto.com

www.sparckmoto.com

www.Moto-Madness.com

www.pistonsociety.com

www.steeltowngarage.com


Author Topic: 1981 Yamaha SR250 Tracker style build  (Read 7574 times)

Offline Extreme_250

  • Posts: 47
1981 Yamaha SR250 Tracker style build
« Reply #10 on: May 12, 2016, 22:08:28 »
Took the carb off because my idle was sticking, (no it wasn't the throttle cable) and got every thing apart. I took the needle jet out for the first time, (watched a video on how to get them out) and holy Mary mother of god was that baby gunked up. Got my jets soaking in B-12, will have everything back together tomorrow. 
« Last Edit: May 12, 2016, 22:10:17 by Extreme_250 »

Offline Extreme_250

  • Posts: 47
1981 Yamaha SR250 Tracker style build
« Reply #11 on: May 13, 2016, 00:30:11 »
While my jets are soaking, I've been trying to get that big dent out of my tank. I can't really make anything work to pop it out from the inside, so I tried glueing a hammer handle to the tank, and the glue wouldn't even stick. So, gonna go to the parts store tomorrow hopefully and get a crankcase breather and a dent puller.

Offline Extreme_250

  • Posts: 47
Re: 1981 Yamaha SR250 Tracker style build
« Reply #12 on: May 13, 2016, 02:06:59 »
So.. When putting the needle jet back in and the main jet after that, I notice that the needle jet is sliding up and down.. I'm thinking wtf? So I look at the carb diagram, and there is supposed to be a washer between the needle jet and main jet. Ever since I've been working on it there has never been one there. (my sisters ex took the carb apart 8+ years ago trying to get it running, and he lost a lot of shit for this bike) I'm guessing it didn't move up and down before because it was so gunked up. So I'll have to order that, should have it by next Thursday/Friday.
« Last Edit: May 13, 2016, 02:10:10 by Extreme_250 »

Offline advCo

  • DTT BOTM WINNER
  • *
  • Posts: 2202
  • Nick Ol' Eye
    • adventur Studios
1981 Yamaha SR250 Tracker style build
« Reply #13 on: May 13, 2016, 02:09:45 »
As far as I know you have a few options. Buy a suction cup dent puller, which I have no experience with and couldn't tell you whether or not they work or are a scam. Weld a stud to it and pull it out that way. Or work it out from the inside, which given its location probably will be a pain in the ass. Although If you're creative enough you can find something to get in there and pop it out.

Whatever method you use its not going to be perfect, and you're going to have to use some body filler to get it smooth regardless.

Also, never trust anyone's mechanic work. Always consult a service manual and factory parts diagram because most people don't know what the hell they're doing.
« Last Edit: May 13, 2016, 02:13:06 by adventurco »
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline Extreme_250

  • Posts: 47
1981 Yamaha SR250 Tracker style build
« Reply #14 on: May 13, 2016, 17:08:32 »
Woohoo! So I found a small little washer and it works perfect for the needle jet. So I got that back together, checked my valves again, (intake was a little loose, exhaust was perfect) got everything together and fired her up. Wow, is she running good! Before I did have a little lag on WOT, but now it's smooth, no lag. Very happy! I'll be needing my bike until this Sunday, then I can take the air box/battery box and get started on the fun for this build.

Offline cosworth

  • Posts: 561
Re: 1981 Yamaha SR250 Tracker style build
« Reply #15 on: May 13, 2016, 19:24:57 »
You've come to the right place. There are a few of us that know the SR250 inside and out.

Jadus sells a seat combo you might like...
1981 SR250 café hot rod (sold)
1976 XS360 collector plates
1980 XS400 (on the bench)
1981 XS400 (in pieces)
2017 Husqvarna 701 enduro
Livin' the dream in western Canuckistan

Offline Weldangrind

  • Posts: 84
  • Quae nocent, docent
Re: 1981 Yamaha SR250 Tracker style build
« Reply #16 on: May 18, 2016, 02:39:40 »
You can always try the blood pressure cuff trick to get the dent out.  They're cheap enough on eBay.

Offline Extreme_250

  • Posts: 47
Re: 1981 Yamaha SR250 Tracker style build
« Reply #17 on: May 18, 2016, 16:45:36 »
Yeah I might try that. Couldn't hurt


« Last Edit: May 19, 2016, 01:53:31 by Extreme_250 »

Offline Extreme_250

  • Posts: 47
1981 Yamaha SR250 Tracker style build
« Reply #18 on: May 18, 2016, 16:48:02 »
So I've got the Battery Box and Air Box out. What are your thoughts? I'm thinking it'd look nice enough with the stock seat on for now. Eventually I will buy or make a seat, but today is not that day ;)

Offline Extreme_250

  • Posts: 47
1981 Yamaha SR250 Tracker style build
« Reply #19 on: May 18, 2016, 16:51:02 »
Definitely going to buy gaiters and tank badges, (that would make it look better right there) most likely going to shorten the front fender too. Might chop some off the rear fender, haven't decided. But that tail light has to go, it's ugly as hell
« Last Edit: May 18, 2016, 16:55:51 by Extreme_250 »