 |
| From 1982 Yamaha Virago XV750 |
 |
| From 1982 Yamaha Virago XV750 |
|
| From 1982 Yamaha Virago XV750 |
Monday, January 24, 2011
Yet another project bike.
So the katana has become a father/son project bike. The only problem is that I often want to work on it when he doesn't. Luckily, a friend knew I liked to tinker, and offered me his old bike as a project bike. He doesn't even change his own oil, so when the front brake wen out, he parked it. Five year later, his wife is hassling him to get rid of it, and he wants it in a good home. So here's my new project, a 1982 Yamaha Virago 750:
Saturday, January 22, 2011
Shifter!
Here's the new shifter from Faster Minis, along with the old one for comparison:
The only problem is that it doesn't extend away from the bike as much, and it has that square corner where it folds. This is kind of a good thing too, in that I don't think it will leverage against the shaft as much if the bike goes down. I'm going to file down that corner so it doesn't rub, but I knew about that going in, from the guy who recommended that shifter.
 |
| From Motorcycle restore blog |
The only problem is that it doesn't extend away from the bike as much, and it has that square corner where it folds. This is kind of a good thing too, in that I don't think it will leverage against the shaft as much if the bike goes down. I'm going to file down that corner so it doesn't rub, but I knew about that going in, from the guy who recommended that shifter.
Stuff on the way!
I've ordered the stuff to replace the shaft from bikebandit.com. Hopefully It will be here in the next couple of weeks, it's been one week already. I decided to just go ahead and replace everything, including bushings, springs, washers, while I was in there anyway.
Here's the parts list from bikebandit:
H/LIGHT & IND BRKT,LH,CHROME,B : 1396967 (5575423-001)
CIRCLIP : 1380659 (5559024-001)
CIRCLIP : 1380659 (5559024-001)
WASHER,THRUST,12X18X1.2 : 2126306 (5559043-001)
SHAFT ASSY, GEARCHANGE : 1378708 (5557073-001)
BUSH, SPRING LOCATION : 1378712 (5557077-001)
RETURN SPRING, GEARCHANGE : 1378704 (5557069-001)
BOLT, SPRING ABUTMENT : 1378705 (5557070-001)
GASKET,SUMP 3CYL : 1388088 (5566524-001)
I've also ordered a folding shifter from Faster Minis. This should fit the legend, and will hopefully fold up if the bike goes down again, rather than breaking the shaft.
In the bikebandit parts list, you'll notice "H/LIGHT & IND BRKT,LH,CHROME,B" is not part of the shift assembly. I decided to go ahead and replace the one I hacked together with wire and JB weld, because I ordered a flyscreen! Hopefully, this will push the wind off of my neck-it's next to impossible to go past 60mph, because of the flutter against my throat. Here's a thunderbird with the same flyscreen:
Here's the parts list from bikebandit:
H/LIGHT & IND BRKT,LH,CHROME,B : 1396967 (5575423-001)
CIRCLIP : 1380659 (5559024-001)
CIRCLIP : 1380659 (5559024-001)
WASHER,THRUST,12X18X1.2 : 2126306 (5559043-001)
SHAFT ASSY, GEARCHANGE : 1378708 (5557073-001)
BUSH, SPRING LOCATION : 1378712 (5557077-001)
RETURN SPRING, GEARCHANGE : 1378704 (5557069-001)
BOLT, SPRING ABUTMENT : 1378705 (5557070-001)
GASKET,SUMP 3CYL : 1388088 (5566524-001)
I've also ordered a folding shifter from Faster Minis. This should fit the legend, and will hopefully fold up if the bike goes down again, rather than breaking the shaft.
In the bikebandit parts list, you'll notice "H/LIGHT & IND BRKT,LH,CHROME,B" is not part of the shift assembly. I decided to go ahead and replace the one I hacked together with wire and JB weld, because I ordered a flyscreen! Hopefully, this will push the wind off of my neck-it's next to impossible to go past 60mph, because of the flutter against my throat. Here's a thunderbird with the same flyscreen:
Doom, despair and agony on me.
Well, my fix for the Triumph broke a few months back. Misery.
For history, the shifter shaft was broken when I got the bike. It's a known design flaw in the Hinckley triples-there's a notch on the shaft to hold the shifter correctly, and the shifter itself is a piece of cast aluminum that you could club someone to death with. The result is: if you lay the bike down, even easy, on the left hand side, the shifter shaft will snap, rather than the shifter itself.
Now, on the newer triumphs, the shaft just slides out, and you can put a new one on with no problem. On the older ones, the part that engages the transmission is part of the shaft. To fix it by the book, you have to crack the case to replace it. Some enterprising fellows on the TriumphRat forums discovered that you could come up through the oil sump and replace it that way, with some creativity. Someone else figured out you could drill and tap the shaft lengthwise, and put a screw in to hold it together without opening anything. This is what I did, and then I dropped it (at like 2mph going over some gravel, I'm fine,) and broke off my fix.
What followed was a huge pain in the ass trying to do the easy fix again, which ended up costing me in time and money, almost as much as replacing the part. The plan was to drill out the old bolt, re-tap it, and put a new bolt in.
Problem #1: I got impatient when re-tapping the shaft, and broke off the tap in the hole. Taps are REALLY hardened steel, and it would in no way be drilled out (I tried. A lot.) I ended up using a dremel and multiple grinding bits to grind out the tap. It took forever, and two trips to the store to buy new grinding bits.
Problem #2: Here's a bad description of the fix: There's the shaft, which is drilled and tapped. Knurled spacers to replace the broken tip, and for the shifter to attach, and the bolt head, going through the spacers and attaching to the shaft, all held together with red loctite to keep anything from slipping. Like so:
Result? The spacers ended up slipping just enough to make shifting impossible.
Problem #3: Stupid brute force fix attempt. I decided that JB weld would hold all that crap in place but good. I was wrong. The spacers still slipped, but now it was impossible to remove the bolt, so I ended up cutting off the bolt head, so now I had a shaft with about 3/4 inch of threaded stock sticking out of it. I found a local machinist to make me a big spacer to screw on to the thread, thinking that using the three individual spacers was my problem. I was wrong, although it held for about 15 minutes.
End of story? A few months down, and I've decided to suck it up, and replace the part coming up through the sump. More posts to follow.
For history, the shifter shaft was broken when I got the bike. It's a known design flaw in the Hinckley triples-there's a notch on the shaft to hold the shifter correctly, and the shifter itself is a piece of cast aluminum that you could club someone to death with. The result is: if you lay the bike down, even easy, on the left hand side, the shifter shaft will snap, rather than the shifter itself.
Now, on the newer triumphs, the shaft just slides out, and you can put a new one on with no problem. On the older ones, the part that engages the transmission is part of the shaft. To fix it by the book, you have to crack the case to replace it. Some enterprising fellows on the TriumphRat forums discovered that you could come up through the oil sump and replace it that way, with some creativity. Someone else figured out you could drill and tap the shaft lengthwise, and put a screw in to hold it together without opening anything. This is what I did, and then I dropped it (at like 2mph going over some gravel, I'm fine,) and broke off my fix.
What followed was a huge pain in the ass trying to do the easy fix again, which ended up costing me in time and money, almost as much as replacing the part. The plan was to drill out the old bolt, re-tap it, and put a new bolt in.
Problem #1: I got impatient when re-tapping the shaft, and broke off the tap in the hole. Taps are REALLY hardened steel, and it would in no way be drilled out (I tried. A lot.) I ended up using a dremel and multiple grinding bits to grind out the tap. It took forever, and two trips to the store to buy new grinding bits.
Problem #2: Here's a bad description of the fix: There's the shaft, which is drilled and tapped. Knurled spacers to replace the broken tip, and for the shifter to attach, and the bolt head, going through the spacers and attaching to the shaft, all held together with red loctite to keep anything from slipping. Like so:
SHAFT- SPACERS-BOLTHEAD
------- ------
| 000000 -)
=========== -)
| 000000 -)
------- ------
Result? The spacers ended up slipping just enough to make shifting impossible.
Problem #3: Stupid brute force fix attempt. I decided that JB weld would hold all that crap in place but good. I was wrong. The spacers still slipped, but now it was impossible to remove the bolt, so I ended up cutting off the bolt head, so now I had a shaft with about 3/4 inch of threaded stock sticking out of it. I found a local machinist to make me a big spacer to screw on to the thread, thinking that using the three individual spacers was my problem. I was wrong, although it held for about 15 minutes.
End of story? A few months down, and I've decided to suck it up, and replace the part coming up through the sump. More posts to follow.
Subscribe to:
Posts (Atom)