Ok so I got an issue I need help with. Cruising in 4th or 5th if I roll on the throttle quickly and put the engine under a good load I get this horrible almost metallic top end noise, or it atleast it sounds it. Possible spark knock or something. So I pulled plugs to check them and they're getting very weak spark. I'm gonna double check them with a spark tester and new ones. But does anyone have any experience dealing with the same issue? It's an 04 1600 classic with 12k, only has after market exhaust (I know I need to get a fuel controller). Thanks for any input.
It's raining today so I won't be riding but I just filled it up, do you think if I put octane boost in this tank it'd be OK to try an then next tank try 91 or 93.
If I run anything but premium in my 07 Nomad, it does what you are describing..."Cruising in 4th or 5th if I roll on the throttle quickly and put the engine under a good load I get this horrible almost metallic top end noise..."
That's probably what it is then. I'm gonna refill with premium. I did check spark though also, and they weren't giving fat blue spark. It was really weak. That's why I was concerned about coils.
I would recommend checking the cam chain tensioners, although 12k would be really low for it to be the issue, I have heard in some places that they can need attention that early.
Here's a link to Jared's write up on it:
utahmotorcyclist.blogspot.com/2012/03/how-to-install-cam-chain-tensioner.html?m=1
For tensioner extenders:
chucksterscustoms.com/product/kawasaki-cam-chain-extenders/
Well I hope it's not that. I had just filled up so I put octane boost in just til I get through this tank. By later today I will be filling up w/premium, changing plugs and doing alot of riding over the next few days. Will be going to "Thunder in the Valley" motorcycle rally. So I will update on my findings of how she runs. Thanks for all the help.
I found Shell premium upped my performance and mileage significantly over other, cheaper brands. Cheap gas, 150 miles per tank, Shell 200+ on my '12 1700 Nomad .
So it was the gas,,,, My girl is back!! Thanks fellas. I also ordered a Cobra Powrpro to make her run a little better.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Kawasaki Vulcan Forum
712.7K posts
67.8K members
Since 2008
A forum community dedicated to Kawasaki Vulcan motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, Vulcan 1500, Vulcan 2000, Vulcan 500, Vulcan 1600, Vulcan 900 and all other Vulcan motorcycles.