It was the succeeding model of the GX which mounted a new engine that had a DOHC head. It was equipped with a YICS (Yamaha Induction Control System) and a balancer, and its rear suspension had been upgraded into mono-cross type.
I've made the mistake and bought BPR 7 ES at first. The R stands for Resistor, but the cabs have a resistor and you don't need resistor caps. This is my spark plug after 150 km with a new aftermarket exhaust. 100 % good combustion. I even made the mixture a little bit richer. Even when you see in some Yamaha books that you should run BPR 7, check the resistance of your cap, first. If the cap has 6 Kilo Ohm, then no need for another resistor. . The BP 7 ES are for most Yamaha Viragos the best spark plugs. The problem is that eBay these days even sell fake plugs from China. I know that Webike gets their stuff from Japan, so no need to worry about a nightmare of fake plugs in my bike. The price is also okay, will buy them again when I need new ones. Only 4 days from order to delivery is good.
I have heard the reputation of this Plug, but I tried buying it to be handled by Webike.
So far as Watani's designation OEM DPR Gap 1. I adjusted it to 3 mm and used it. Ignition system and lighting and fans (Cause of voltage eating) And is completely processing Wiring is divided.
Even when I changed Igniter and Coil "Beauty is on fire" Although I was impressed with this, I will go further up when I put this in. The cloudy rush of about 5000 rpm from Clutch meat is like Silky, it seems that generations have gone lightly for about 10 years. I feel that my heart or exhaust smell has also decreased (Lol)
However, it is said that the introduction of Wotani SPll is the Large premise as minimum as Mr. Shimaba says from the import distributor. Horribly Gap is wide so fire will not fly in the same Coil.
If the fans turn around due to heavy traffic in the summer, there are many misfires → JR 8C installed, but ... If you want to enjoy drastic solutions and fine Feel, I recommend this combination.
Discovering the Spark plug that looks like the face on the product explanation screen of Wa Big who happens to be found. Regarding its use, this plug which encourages watani attachment to the ignition system. The purchase decided immediately for a car that meets the conditions! When looking at the real thing, Steel color which Blue took first gets an eye out. The center electrode of the tapping was NGK - Compared to DR8EA, it will be positioned more towards the center of the combustion chamber by 1 mm or more, which will increase expectations for combustion efficiency Up. However, looking at the details, I can not deny the feeling that it is more complicated to make than JAPAN's Plug. BALI of the center electrode and screw terminal type terminal are obviously off center. , I feel a little cheapness because I am watching JAPAN items with high precision from the usual. However, if you actually use it and have sufficient performance and durability, you can say that it is not necessary to request such parts that are not normally visible. I installed it immediately, but the exchange itself is exactly the same as regular Plug exchange and there is no particular problem. The accuracy of the Screw part seems to be a passing point. When I try to cover Plug cap, it is Fashion that Blue 's Steel color looks sharp. And Engine start! - - - That sounds exhaust sound from Mild something more than usual. Because it is a single cylinder, there is a place called Dododo, but it is called Toto. However, rather than being cheesy rather than luxurious - - -. Also, the warm exhaust gas Gas in the winter season has Gas smell, but it feels like it has been relaxed. Impression that Engine braking became Mild when I actually ran. I have stopped playing. Furthermore, Engine vibration seems to be decreasing. Since Cowl was wearing, engine oscillation was swaying the edge of Cowl, as it was Big Li after replacing the Plug, it became impossible to see it. It is feeling that the rise is also powerful though it is Mild. I am surprised that there is such a change with just one Plug. I ran about 20 kilometers, but I did not feel Minus factor. I would like to see the impact on fuel economy and the durability of the plug itself. It is limited to strong motorcycle of watani equipped car or ignition system, but it is recommended plug at the first impression.