YSR50 Rebuild
Moderator: rztom
YSR50 Rebuild
Any YSR500, oops, YSR50 love out there :)
Picked up both these in San Francisco for a song, Boxes and boxes of spares, Both are running, Little flyers, Came with a bung of nice goodies, Team Calamri wheels, triple and fork clamps, handle bars, fork spring conversion kit, exhaust, 24mm carb kit and fancy fuel cap and a few other bits.
I stripped the Red/White down during the week and sent all the metals out for powder coat, its a matching numbers bike, The other bike is going to my eldest son for a project, I swapped over the bits I needed and hes good to go.
Engine stripped down, Im replace the main bearings and seals, the left seal was totaled, It passed a leak down test, but the seal splits when pressed, it was rock hard, glad I got in there,
The cylinder is lightly ported, Might be a Calamari job, I sent the cylinder out for a rebore, Its in good shape, but the piston is a little worn, They are going to fit a Wiseco, The bead has been modded, squish was machined etc.
Rekeyed the ignition and helmet lock, Both on a set of A-Keys and barrels I had in the key bin.
This is as far as I got, pics will follow as I go along :)
Picked up both these in San Francisco for a song, Boxes and boxes of spares, Both are running, Little flyers, Came with a bung of nice goodies, Team Calamri wheels, triple and fork clamps, handle bars, fork spring conversion kit, exhaust, 24mm carb kit and fancy fuel cap and a few other bits.
I stripped the Red/White down during the week and sent all the metals out for powder coat, its a matching numbers bike, The other bike is going to my eldest son for a project, I swapped over the bits I needed and hes good to go.
Engine stripped down, Im replace the main bearings and seals, the left seal was totaled, It passed a leak down test, but the seal splits when pressed, it was rock hard, glad I got in there,
The cylinder is lightly ported, Might be a Calamari job, I sent the cylinder out for a rebore, Its in good shape, but the piston is a little worn, They are going to fit a Wiseco, The bead has been modded, squish was machined etc.
Rekeyed the ignition and helmet lock, Both on a set of A-Keys and barrels I had in the key bin.
This is as far as I got, pics will follow as I go along :)
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
Re: YSR50 Rebuild
Very cool projects indeed! great find!
Cant wait to see this one progresses.
Cant wait to see this one progresses.
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
Re: YSR50 Rebuild
I predict you will find yourself in a lot of trouble with the little monsters. They're big fun in a small package
85 RZ350 daily rider Toomeys, FZ swinger & wheel, Fox shock, Raasks
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger
Re: YSR50 Rebuild
RZ350 engine transplant tacky. Or one of your CR500 engines. Please. Thank you.
Ken's Garage
https://www.youtube.com/c/KensGarage1
https://www.youtube.com/c/KensGarage1
Re: YSR50 Rebuild
See? TROUBLE
85 RZ350 daily rider Toomeys, FZ swinger & wheel, Fox shock, Raasks
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger
Re: YSR50 Rebuild
LOL, I see a dangerous pattern here Ken :P
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
- Evans Ward
- -----
- Posts: 1546
- Joined: Sun Jun 07, 2009 6:39 pm
- Location: Macon, GA
Re: YSR50 Rebuild
I remember one year at Deal’s Gap years ago when a lanky dude from up north about 6’ 4” unloaded a super nice black YR50 and then ran the Dragon (318 curves in 11 miles one way) round Trip . He returned, loaded up, and left. Didn’t know him but he looked like the proverbial monkey on a football, legs all over the place when riding this. Must have been prepped well. Cool little bikes fetching a lot of coin these days,
84 RZ350-Toomeys,SCR milled head, stk 26 carbs,300 M, 35 P, stock regrooved needles AS 2.5 turns out,stk air box,Banshee reeds Zeel non-progr CDI,TSRL Program YPVS,alum rad,R6 shock,GV emulators w/RT springs,fork brace,Shindy steering damper.
Re: YSR50 Rebuild
More progress, Wheels were stripped and the metal polished!! I dont like polished metal..... BUT, It is what it is.......
Hubs sanded and repainted,
Engine is back together, New crank bearings and all seals replaces, Waiting on the cylinder to come back from a rebore.
New clutch plates and springs, gaskets etc,
Stripped and painted the outer covers, They were pretty badly corroded, Look a lot better now :)
Switches stripped and painted, waiting on the decals to finish them off,
Lots of other bits and pieces completed, all wiring has been repaired, harness all cleaned up and re-taped.
Waiting on the frame and all the metals to come back from the powdercoater.
Hubs sanded and repainted,
Engine is back together, New crank bearings and all seals replaces, Waiting on the cylinder to come back from a rebore.
New clutch plates and springs, gaskets etc,
Stripped and painted the outer covers, They were pretty badly corroded, Look a lot better now :)
Switches stripped and painted, waiting on the decals to finish them off,
Lots of other bits and pieces completed, all wiring has been repaired, harness all cleaned up and re-taped.
Waiting on the frame and all the metals to come back from the powdercoater.
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
- Evans Ward
- -----
- Posts: 1546
- Joined: Sun Jun 07, 2009 6:39 pm
- Location: Macon, GA
Re: YSR50 Rebuild
Looking really good!
84 RZ350-Toomeys,SCR milled head, stk 26 carbs,300 M, 35 P, stock regrooved needles AS 2.5 turns out,stk air box,Banshee reeds Zeel non-progr CDI,TSRL Program YPVS,alum rad,R6 shock,GV emulators w/RT springs,fork brace,Shindy steering damper.
Re: YSR50 Rebuild
wow fast progress!
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
Re: YSR50 Rebuild
Bored Jon. Lol. The covid rebuild. I was in the garage yesterday morning at 7am and finished up at 11.30 last night
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
Re: YSR50 Rebuild
Engine is complete, Carbon reeds fitted and I modded the cage, get more of a flow through it.I also fitted a new 24mm flatslide carb, A lot better than the stock 16mm carb!!! It was a PITA to get the OEM throttle cable to work with it, I want to keep the oil pump, No pre-mix... I drilled the carb and fitted an oil injector..
I removed the little cable end and cut back the outer cable, Got my length right and re-soldered on the end, Works perfect, nice to have an OEM cable, they just work that much smoother.
The oil pump cable is held in with this snazzy little clip, Nice, havent seen one of these before :)
I also drilled two little holes in the barrel fin right beside where the exhaust bolts to the cylinder.
The OEM way is the shits, this way the springs will be good and solid.
Still waiting on the frame and bits.....
I removed the little cable end and cut back the outer cable, Got my length right and re-soldered on the end, Works perfect, nice to have an OEM cable, they just work that much smoother.
The oil pump cable is held in with this snazzy little clip, Nice, havent seen one of these before :)
I also drilled two little holes in the barrel fin right beside where the exhaust bolts to the cylinder.
The OEM way is the shits, this way the springs will be good and solid.
Still waiting on the frame and bits.....
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
Re: YSR50 Rebuild
Super clean! Great work, and fast, as mentioned above. Go, man go!
85 RZ350 daily rider Toomeys, FZ swinger & wheel, Fox shock, Raasks
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger
Re: YSR50 Rebuild
Very nice work.
Enjoying this build a lot.
Enjoying this build a lot.
Re: YSR50 Rebuild
Thanks guys. Kinda stuck now till the frame and bits get here.
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30