TOPIC:

The throttle is responsive and strong until it's nearly at full throttle, then it feels almost like it's missing and it won't go faster than about 85 mph. I've tried replacing the ignition and plugs, but it didn't fix anything. I've heard it could be a jet issue. Suggestions? Thanks.

iamspugeddy wrote: The throttle is responsive and strong until it's nearly at full throttle, then it feels almost like it's missing and it won't go faster than about 85 mph. I've tried replacing the ignition and plugs, but it didn't fix anything. I've heard it could be a jet issue. Suggestions? Thanks.

Hello, iamspugeddy, and WELCOME to KZr!

Perhaps main jets are too large, or maybe loose.

Is the air filter dirty or otherwise obstructed?

What is spark quality when viewed with plugs removed?
Supposed to be fat blue sparks, and not thin orange sparks.

Good Fortune!

iamspugeddy wrote: The throttle is responsive and strong until it's nearly at full throttle, then it feels almost like it's missing and it won't go faster than about 85 mph. I've tried replacing the ignition and plugs, but it didn't fix anything. I've heard it could be a jet issue. Suggestions? Thanks.

See:
www.kzrider.com/forum/2-engine/596501-81...deas?start=20#661755

Does the bike have the stock air box and air filter? Ed

Thanks for the replies. I'm fairly certain the bike is all stock, so I'll start with the filter and work my way towards the heavier work from there. I appreciate the help and I'll update as I go.

Epoxy over the hole and rev limitations are off....ride safe

Thread about it here:
www.kzrider.com/forum/2-engine/596501-81...deas?start=20#661755

I'll be checking those out when I get home today. If that's the only problem, you will all be considered my heroes.

iamspugeddy wrote: I'll be checking those out when I get home today. If that's the only problem, you will all be considered my heroes.

Back in the day I always wondered why the motor coppers wouldn't go faster than 80+ chasing me on my VFR700...I even out ran a helo once...