5twins

The dwell angle on these bikes is about 90° (93°± 5°). That's how long the points "dwell" in the closed position, allowing the coil to...

Yes, it has to do with how air is delivered to the pilot jet and what it flows. The BS30/96 type pilots (like yours), sized in the 40s...

No, I've never tried it, but I don't really feel the need. Once properly jetted and set up, these CV carbs respond quite well in my...

Yes, your pilots are a size larger than stock ......

You don't want the idle speed much above 1200 because the ignition can start advancing. When that happens, the engine speed increases...

For a front, I always run a 100. A 110 may be too wide.

On the later models, normally the tail light is wired right into the ignition switch and comes on with the key. The engine doesn't need...

Mine shipped from Sugar Land (via FedEx) and are now in Kentucky. Supposed to be here Thursday.

Tony, did you get the plugs you ordered yet and if so, are they indeed the BP7ES plugs, not the BPR7ES (resistor version)?

According to the parts diagram, it's an M6 x 35mm long. You can often find a screw or bolt's size and length by looking at the middle...

I think I found them, or at least something very similar ...

Where are those gaiters from? They look pretty nice.

You can repair that one. Most of us just "patch" them up with JBWeld. The screen makes a good backing for it and the repair is very...

You can use a Honda MP08 coil. They're a dime a dozen on eBay. I got a 3-pack from a Gold Wing 6 for about $24. Here's a thread on them...

Yes, it's my understanding that Mike started this place after selling MikesXS. I'm thinking maybe he had a lot of stuff left and wanted...

I sure hope these are BP7ES plugs and not the BPR7ES (resistor) ones. Some places are substituting the resistor ones for the plain ones...

Yes, I change both of those gaskets when I first get the bike, after that, hardly ever. To clean the old gaskets out, I use plain old...

Honestly, that's a gasket I hardly ever replace. It lasts and lasts. I do install a new one when I first get the bike but after that...

Even with the electronic ignition, I think you still only want one instance of resistance in each plug wire. So yes, change the cap or...

..... or you could switch to fork gaiters, even cheaper and better protection for the seals and fork tubes ......

Yes, that should be fine. I've used a 1.5mm thick o-ring in the past but it was a bit big. It filled the whole width of the o-ring...

Just one small thing - the wires on your brushes are routed incorrectly, they should wrap around the outside of the brush. You can see...

The pilot jets are original and are a "no hole" type of VM22/210. Yamaha must have contracted with Mikuni to have them made without the...

Going by the size and shape of those plug caps, I'd say they're the resistor type. You can confirm by measuring through them with a...

The first 650 Special came out in '78. Yamaha continued to make the Standard model along with it in '78 and '79. In 1980, the Standard...

This is the perfect example of why we don't recommend the rebuild kits. Many times the jet sizes are wrong too, lol. The replacement...

It may also be putting out AC not DC current.

To make those "on the fly" idle speed adjustments easier, I've started pressing knurled "caps" onto the screw heads ..... The top...

I never bought any 3.5mm fiber plates, never needed any as all my clutches are the later type that use 3mm fiber plates. If you do the...

Yes, the spring steel clip that holds the choke on can be bent to try and adjust how much the lever lifts the choke plunger, but before...

Although B8ES plugs were speced when the bike was new, BP7ES plugs were specced for the later models and it's accepted practice to use...

So, it was that too short Y-22 needle causing the issues. That needle can only work in the '70 to '73 carbs, as a replacement for the...

Yes, the measuring method is the best way to insure the amount of oil is equal in both forks. This is especially true when you do your...

Yes, it looks like the timing chain is off a tooth. You should be on the "T" mark (TDC) when that little pin hole in the cam is pointing...

Well no, not really. Those are just stock '82 wires and plugs. What you want to show us is what's on the other end of them, your stator.

These forks work much better with slightly more than the stock amount of oil (about 5.7oz.) in them. I go about 6.5 oz., 7 if the forks...

Yes, all the models with the headlight safety relay do that. Get the motor spinning enough so the alternator puts out some voltage and...

Yes, but it can be tricky. The holes in the ends of the later cams weren't finished off and sized exactly for the bushings. You have to...

I'll admit that I'm very partial to the Pamco and have been running one for many years, almost since they first came out. Pete sent me...

I know what the light checker does but not exactly how it does it, lol. If you study a wiring diagram for your model, you will see you...

Well, I suppose you could try the longer needle jets but they may not flow the same, especially when the throttle is closed. As far as...

Which one cold starts easier?

Yes, low power to the coils, resulting in a weak spark, is apparently a common problem on old bikes. Although I've never done it, here's...

So, what were the 5 little "fixes"? I think I see a bit of a "groove" ground into the top corner on the swingarm. A little off the MC...

Yes, I noted that as well in that post.

I should have linked you guys to this thread where we discussed this topic recently. Most hose clamps have a couple little "bumps" under...

OK, it looks like your kits came with the correct generic Y-31 needle, so you should be OK using it. But needles are something that...

Having that nut on there will also clean up the threads as you remove it.

For opening up the instruments, a simple paint can opener works well, available pretty much at any hardware store .....