Define "broken". What does the oil analysis say? Was there any damage during a visual inspection of the valve train?

If it's just noise, the bike isn't broken. This has been discussed to death on this forum, so far there have been zero engine failures or even visible damage.

 

Got the same thing. Could be oil pressure related with the timing chain etc.. Suzuki things. Facebook group says there is a bulletin to basically halve the valve clearances to remedy this.

 

Apparently, this remedy doesn't work, eventually it comes back

 

Again for the hundredth time. A non-issue! Just noise

 

Welcome to the hot start knock club! I've been a member since 600 miles. Same thing for me. Brought it to the dealer, they "fixed it", I started it a few times at home and not fixed.

 

It's a non-issue as stated by many of us here. A little noise at hot start up that's it. You do more harm by letting those monkey mechanics touching it.

 

Yeah I dont care anymore. Its been over a year since it started. Full exhaust will help cover it.

 

Does anyone find it interesting that the new GX model has no one reporting these hot start rattles?


Maybe Suzuki designed out the characteristic....

 

My 24' GT has no hot start rattle either. Less common than you think and completely overblown issue.

 

Same. '24 and no odd noises.

 

2023 model and the noise is like a rattle. Exhaust sound is odd too when it does this.
Any recalls on this machine?

 

I have a 2024 GSXS 1000. I have the same problem. Suzuki has two of their best techs taking a look at my bike. If enough people report the problem to the dealership, they will end up fixing the problem. There’s a lot of people has the same problem. They need to fix it.

 

There is already a TSB about this. I'm curious what your techs discover or "fix", try to get those details and keep us informed.

 

I told my dealer about the TSB and they blew it off like a mothertrucker. You learn to live with it. Seeing it only happens on start up and goes away, it is alright with me now. Bike still runs like a beast.

 

ah see now i can hear mine while i'm riding, even through having earplugs in. I only mentioned noise in casual passing to my dealer at the last service, to see if they were bothered about it. They agreed it wasn't right and booked it in. I didn't have to push them to get it done.

 

My dealer said it didn't sound good also. They said they worked closely with suzuki to figure it out. They checked the valve clearances but failed to adjust them, and only change CCT and oil. The valve clearances were all over the place. Some on the bigger end and some on the lower end. 2 were at absolute minimum. I guess the failed to take heat into consideration.

 

How did you know they failed to adjust them - did you get someone else to check them after?

 

They gave me the write up, and as I was leavng they said "if the noise comes back, you probably need your valves adjusted." that is the last time I go there. 2 months wasted.

 

Wow ok thats dissappointing. Have you raised it with Suzuki?

 

No I was going to and probably still will as Suzukis customer service has been poor and disappointed. They know what the issue is if there is a TSP about it.

 

Just use ChatGPT ... ask it to write you a strongly worded letter to the CEO of Suzuki regarding the issues you have had attaching all evidence.

 

I don't know if I have the noise because I can't really hear my engine over my M4 exhaust, especially at speed and with ear plugs in. I do think it's interesting that this valve adjustment TSB exists, though, as it's either Suzuki saying "it's not a problem, but if people are freaking out, this should quiet the engine down and still have it within our durability specs"... or... they're saying "ok, yeah, there is a problem, we don't think it's a huge deal, but this should fix it for most people".

I say that because if it were a huge deal and Suzuki were facing potential engine failure warranty claims at a large scale, I imagine they'd issue a recall instead. Having said all that... excessive noise due to (I presume) loose valves still sounds concerning, since it could in theory cause premature valve (or seat) wear or even valve damage.

So I don't know. I'm not overly worried about mine, but at the same time I'm still keeping an eye on threads like this.

 

It sounds to me that the TPS is just about valves being on the out of tolerances, not that they are actually loose.

 

**** my 24 in ticking bad when start up hot .
I see others too.
It sounded like a stuck lifter n the push rod is slapping .
But I don't think it's like that .
It may be a ball n spring valve type of mechanism to regulate the crankcase pressure
N so if it's hot n the pressure is up
Maybe it's that
Because it goes away
And it still runs amazing when it stops
I don't over Rev it while ticking . So if in the engine schematic you can find a ball valve
That might be it ?

 

**** my 24 in ticking bad when start up hot .
I see others too.
It sounded like a stuck lifter n the push rod is slapping .
But I don't think it's like that .
It may be a ball n spring valve type of mechanism to regulate the crankcase pressure
N so if it's hot n the pressure is up
Maybe it's that
Because it goes away
And it still runs amazing when it stops
I don't over Rev it while ticking . So if in the engine schematic you can find a ball valve
That might be it ?

So here is the follow up to my last post I had taken it into the dealer for warranty work. They had it for three weeks. It was an update from Suzuki to do a valve adjustment. They called me told me it was done. I picked it up took it home. Started up still had quite a knock. Not just a ticking, but a knock. so I told him that I wasn’t gonna settle for that. So I took her back into them and they had a Suzuki tech on the phone while they did another valve adjustment. And as you can see from this report that they said the update they first put out was incorrect. So they updated it. Adjusted the valves again and replaced 10 shims. no knock. It has a slight tick. But that’s to be expected from a machine like this. It only lasts for about 15 to 20 seconds and it solid. So if you don’t like the noise. Take it to the dealer they should have the new update.

 

So let's ask ChatGPT about this specific issue and see what the AI comes up with.

My query:

on a suzuki gsx liter engine, when it is started hot (i.e. after running for some time at optimal temperature and then stopped), after the restart, there is a knocking noise, as if loose valves. but the manufacturer says it's not loose valves or a wrong valve clearance, but rather something to do with the cam chain tension. any idea what?

ChatGPT response:

The knocking noise after a hot restart on a Suzuki GSX liter engine is likely due to the cam chain tensioner not fully engaging immediately. When the engine is hot, the oil may be thinner, causing a delay in the automatic tensioner taking up the slack in the cam chain. This momentary slack can cause the chain to rattle until the tensioner catches up. It's not an issue with valve clearance but rather a characteristic of the cam chain tensioner under specific conditions.

Ref: https://chatgpt.com/c/6671e6fe-8817-4f3d-a70b-49d7ba7eef7b

 

This is the most reasonable explanation I've heard yet. Maybe an oil with a thicker operating viscosity would solve the problem? I'm not worried enough about this issue to experiment with different oils so can one of you guys do that for me lol?

 

not a new proplem been there since 2022 hade it on my two 1000g same engine.I return them to dealer no more suzuki four mee

 

I brought mine to the dealer. The replaced CCT. That is it, even after I told them about the valves. The "suzuki rep" they were talking to didn't mention it?? Yeah, bullshit. I bet they didn't even talk to anyone. On the way out after picking the bike up after 2 months he said if it comes back you probably need your valves adjusted. I was pissed. Fast forward to now. After upgrading to full exhaust, tune, and whatever else the noise is constant and the bike blows white smoke and oil is coming out the exhaust.

No, I am kidding. I am running 10w-50 amsoil full synthetic and have only heard the noise once or twice since the new full system. Once was the 2 days ago. But that is it. I would recommend trying it. It is still within specifications. You can run up to 20w40 or 50. I don't remember. I was going to get 10w40 but they did not have it listed on the site. I emailed them about it and the email sucked and didn't answer my question. My question was do you make 10w40 for motorcycles. Fast forward to a few days ago, I had a ad pop up on my email that was from amsoil, and it was metric 10w40 synthetic. Just what I wanted originally. I will try that out seeing it is getting colder outside. The end of my saga with pretty good results.

 

My bike has almost 1,700mi now. I put in amsoil 10w40 metric at 600mi. No hot tick or any tick in my bike as of yet.

 

There is a post on the GT Facebook group claiming that a guy took his GT in to the dealer with 2600 miles on it due to the hot start noise, and they found wear on cam lobes and cam journals. They quoted him $7K for a new engine. He doesn't seem to understand what any of that means and plans on continuing to ride it. At least those are the claims, it's a bit hard to believe because he seems very mechanically ignorant.

 

Yeah a lot of motorcyclists can't even adjust their chain. Kinda ridiculous. Owning a bike is a lot of work and people should know this kind of stuff. It is dangerous if you don't. But, they want to be like their instagram heros.

 

My 22 has 20,000 miles on it and still runs great. It didn't have the knocking on warm start when it was brand new but it started happening after a while (don't remember exactly at what mileage).

 

Did you have your valves checked at 15K? I think that would be a good way to check for this supposed valve play problem, see if the cam lobes are worn or if the valves show any mushrooming or other damage.

I don't know if anyone besides me is doing oil analysis on the engine oil. I'll be dumping mine after the winter and doing another analysis, I started a thread on those a while ago but it has seen no activity.

 

15k miles still doing it hot or cold. I do not worry about it one bit. Bike runs fine. I think its a non-issue and a trait of the re-design from a few years back. I will report back if it ever lets go which I doubt it will. Most reliable bike I have owned in many years and I run it hard. It begs to be run!

 

I just passed 12345 miles lol, looked down and I was at 12360+ wish I'd been able to pull over and take a pic of the odometer. Tapping for 10-20 secs at idle on hot-start still the same as it was day 1. This summer was so hot and gross I didn't do a lot of riding over July and Aug, I did get a couple seconds of tapping after the bike hadn't been run for a few weeks- pretty much the same as a 1st start after the winter months. I have no concerns whatsoever.

 

I have about 1500. Summer was to hot to ride. I don't ride in 90+. I die with gear as I am a polish/german ginger. I put in amsoil 10w50 when I got the bike back in june and it made the noise only a few times. I was looking for 10w40 but they didn't have it listed on their site at the time. Probably sold out i dont know. Then I see an add on my AOL homepage for 10w40 about a month ago. I'll keep the 50w until next spring.

 

I wish you much luck, My 22 model suffered the same if not much worse problem from 800 miles onward to 10000.
Suzuki did make it good. It took several attempts. But they got it done.