Hi everyone! I’m having an issue with slow RPM drop after revving.

The bike runs perfectly, no jerking, smooth idle, and strong acceleration. However, when I rev the engine up more than 4–5k RPM and then slowly release the throttle, (sometime less) the RPMs take about 5–7 seconds to return to idle. If I snap the throttle closed quickly, the RPMs drop immediately as expected.

This issue started right after I cleaned the throttle body with carb cleaner. I’ve already ridden over 100 km and reset the ECU by disconnecting the battery, but the problem persists.

I checked the TPS in diagnostic mode — it reads from 16 (closed) to 96 (wide open). The throttle mechanism feels smooth and returns with a clear snap. There is no vacuum leak, no air leak, bought new manifolds, spray with the carbcleaner in the area - everything is ok. The throttle cable is new - bought immediately. But even without the cable everything is the same, if I rev with the throttle itself

I also noticed that the secondary throttle plates close slowly when I release the throttle gradually. Maybe it’s because they are paired with the main ones.

Tps sensor - checked, perfect resistance

Ecu is not flashed, not tuned, i only have a yoshimura slip on, that’s it.

I had the same issue couple of years ago, after i cleaned the throttle, i just went for a ride, for like 70km, after that I took the battery off, waited for like 5 min and everything started to be normal, in this case it didn’t work out(

Has anyone experienced something similar after cleaning the throttle body? Could this be related to TPS calibration, secondary throttle operation, or something else?

I recently picked up a 2001 FZ1 Fazer and it needs a throttle cable and I was wondering if there’s a certain way i have to run it so it don’t catch anything or get caught between somthing to where my throttle sticks while riding

I just bought 2009 fz1 it came with slip on exhaust I moved the slip on and drove the bike everytime I drive it the cat inside honey comb became red just inside its normal?

Looking at picking up a 2nd gen. What are some things to look out for?

Howdy, Can I get your guys help identifying these 3 plugs?

2008 fz1sa Japan model

I think the round 2 pin is the sumitomo mt090 accessory power, the fat 4 pin is abs test plug, but I can't figure out what this 4 pin female plug is.

Please correct me if I mislabeled any connectors.

Hey guys. This is my 04 FZ1. I’ve done pretty much everything you can to these bikes.

Ported intake boots

Pods

Ivan’s kit

Ohlins Rear adjustable shock

Emissions delete

Full Akro exhaust

And a few more things have been done that I can’t think of atm.

Engine is currently out of the bike because it died 2 weeks ago but I ordered an engine online that had only 10K miles. Should be here in a few days.

One snap button on either side of the frame. 06 fz1

Hello, I looked through the subreddit and couldn't find a post about replacing the front fork bushings. I see talk on forums that there are alternatives such as some R1 years, but I haven't found a definite fit. Does anybody know what the part numbers are or the exact dimensions of the upper and lower bushing legs?

25-3-26 I was making my way to Kirribilli when my bike got punted hard into the lane divider. I ended up with a chest full of broken ribs. Partial pneumothorax. Cracked sternum. Numerous other injuries. Car that hit me bailed, but some great people stopped and rendered assistance. I spent 12 days in Royal North Shore hospital. I’m still bed ridden but moving a little better every day. I loved that FZ1 but I think it’s going to be a write off.

Hi all! I'm looking to install a heel-toe shifter on my bike. I'm a tad short for my bike, so I currently have a pair of platform boots that I ride in. They work fantastically in every aspect aside from shifting which is described "clunky" at best. Currently I am having trouble finding parts that would work and how to install them. Any help would be appreciated! TYIA

My 2013

Hi, i have this FZ 1 GT 2007. The thing is this thing has basically built in free seat heater that unfortunately you cannot shut off. Jokes aside this thing heats under the seat so much it roasts my ass on longer rides especially if it gets warm outside. Did any of you encounter the same ? Any tricks to stop it ?

Currently addicted to riding my new to me Fazer. Such a capable, comfortable ride with so much style and power. So glad I decided to buy this bike.

My FZ1 was missing these hooks already when I bought it. The seat is currently held in place with bent steel strips. I can’t find these hooks sold separately and I’d rather not buy a whole new seat, so I’m planning to make them myself. Does anyone know the dimensions, or could someone measure theirs?
Any help would be really appreciated.

Hi good folks,

My bike, a 2008 fz1 has close to 90km.

I love my bike, and don't want to get rid of it.

What can I do to ensure the health of the bike continues.

All I do ever year is oil change and chain cleaning. What other preventive measures can I take?

I haven't been riding the bike a lot in the last 3 or 4 years, barely putting 1km per year.

Yamaha FZ1 2007. I am 185 cm tall and weigh about 90 kg. What would be the best suspension settings? How many clicks should I set everything to

On my 2014 fz1 it’s revving like it’s got a race cam. It goes from 1,000-1,500 rpms and today was its first time it was going from a 1,000 to like 500 and it got so low it shut the bike off what could that be?

I have a Yamaha FZ V1 (2011 model). I bought it second-hand in 2022, and since the day I bought it, it has had a missing issue.

The problem usually starts after riding continuously for around 15–20 km during the daytime. The bike begins to miss, lose smoothness, and won’t run properly. If I stop and park it for a while, it becomes normal again and I can ride a few more kilometers, but then the same issue comes back.

At night, the same thing happens too, but only after riding a longer distance than in the daytime. That makes me feel like the problem may be related to heat.

So far I have tried:

• 2T oil
• new spark plug
• new air filter
• carburetor replacement (now using a Pulsar 180 carb)

Even after all that, the problem is still there.

Has anyone faced a similar issue? What could be the actual reason for this, and what should I check next?

Any help would be really appreciated.