JPaganel

There you go. High-tension wires do go bad, and it's a cheap fix.

Not necessarily a good assumption. I would look at coils, wiring, and TCI first Test power at coils. Test coils for resistance. Clean...

Kinda hard to say. I would suggest going back to basics: How is your compression? Do you have spark? Is fuel actually making it...

Airflow is different somehow. I had this on a transverse four, inner two cylinders were different from outer. Parts fiche. That's...

Nice. Make sure you slide the fork legs up to match. If you only do the front or the back, it changes geometry, which affects how it...

What you are looking for is a JASO-MA or JASO-MA2 certification. Many diesel oils have it. It is usually on the back of the bottle in...

I think you are talking about carbs from a DOHC model. It isn't so much that they are newer, they are from a completely different...

Never heard of that, but I suppose anything is possible if you are a good welder.

This is part 12R-14453-00-00, officially called "air cleaner joint". Yamaha has discontinued it. Your best bet is eBay, or the...

There is a difference in left and right main jets. Pilot and air jets should be the same. The stock jetting for the 1982 Yamaha XS400J...

I don't really remember where I got mine. eBay, probably. The only problem there is that it is full of cheap Chinese ones. Some of...

I've done this for my wife. I would say to limit the actual lowering to 1 inch. You can do this by installing shorter shocks in the...

Classic symptom of plugged pilot circuit. You got some cleaning to do. You are on the right track. There is a big bundle of wires...

Yamaha made things confusing. Maxim and Seca are styling packages. Seca is more sporty styled, Maxim is more cruiser. This primarily...

Also - are the carb holders good? How about gaskets between them and the head?