First post. I purchased a 1994 Vmax with 11.6k miles last summer from a friend. He bought the bike to flip. It had been sitting for several years. He had the carbs professionally cleaned by a trusted mechanic. He sold it to me with full disclosure that it had a miss (also no front brake so i wasn't able to get a feel for the miss until I fixed that). He thought the problem might be a coil going bad.
Once I took it on some rides I discovered it would run great for first several minutes, but there would be a slight hesitation once it was fully warmed up if I gunned it at around 55 mph. I purchased some GSXR COPs, custom wiring harness, and new plugs. I installed the rear COPs first (easiest) and took it for a ride. The same symptoms existed. But this time I decided to give it a little choke because it felt very similar to a lean condition. The problem went away. I turned the choke off, and it still ran great. No hesitation. I rode it for a couple more weeks and could not get the miss to come back. I went ahead and installed the front COPs, but I don't think the miss was coil related.
Everything seems fine. However, every once in a while I'll hit a big gust of wind and I get a very slight hesitation. It's very similar to when the low fuel light comes on. In the summer it's so rare I don't even worry about it. I've put 3k miles on it, and it's 99.9% good. This fall I ridden it on a couple of windy days. Today was very windy. It was missing and hesitating much of the ride. Usually in the 45-65 mph range in 5th gear. If I gun it, or shift down, or give it some choke it mostly clears up. If I hit an area with no wind, it runs perfect. I tried spraying carb cleaner around the carbs and intakes at idle, and could not detect a leak. I have taken the temperature of the cylinders near the spark plugs. I notice the left cylinders are slightly cooler (180 vs 200 on the right).
Any ideas why wind would impact how it runs? The air hitting the engine from riding down the road at 60 mph doesn't hurt it. It seems like it has to be a sideways gust.
Once I took it on some rides I discovered it would run great for first several minutes, but there would be a slight hesitation once it was fully warmed up if I gunned it at around 55 mph. I purchased some GSXR COPs, custom wiring harness, and new plugs. I installed the rear COPs first (easiest) and took it for a ride. The same symptoms existed. But this time I decided to give it a little choke because it felt very similar to a lean condition. The problem went away. I turned the choke off, and it still ran great. No hesitation. I rode it for a couple more weeks and could not get the miss to come back. I went ahead and installed the front COPs, but I don't think the miss was coil related.
Everything seems fine. However, every once in a while I'll hit a big gust of wind and I get a very slight hesitation. It's very similar to when the low fuel light comes on. In the summer it's so rare I don't even worry about it. I've put 3k miles on it, and it's 99.9% good. This fall I ridden it on a couple of windy days. Today was very windy. It was missing and hesitating much of the ride. Usually in the 45-65 mph range in 5th gear. If I gun it, or shift down, or give it some choke it mostly clears up. If I hit an area with no wind, it runs perfect. I tried spraying carb cleaner around the carbs and intakes at idle, and could not detect a leak. I have taken the temperature of the cylinders near the spark plugs. I notice the left cylinders are slightly cooler (180 vs 200 on the right).
Any ideas why wind would impact how it runs? The air hitting the engine from riding down the road at 60 mph doesn't hurt it. It seems like it has to be a sideways gust.
