[Ryan5544]

Mine had this EXACT same issue, same bike. I just so happen to have it cracked open right now, to adjust the valves. They have closed up quite a bit. Hoping this clears mine up!

 

[Tribalic One]

Holy crap, my shop quoted me $250-$300, drop off in the morning and pickup in the evening! I would maybe seek a second opinion.

This was the price range I heard. My buddy just paid $250 to have his GSXR 750 inspected. Didn't need any adjustment. :laugh

 

[Pipelinz]

Mine had this EXACT same issue, same bike. I just so happen to have it cracked open right now, to adjust the valves. They have closed up quite a bit. Hoping this clears mine up!

Wow, that sucks for you man, if you are feeling the frustration I am with this. Please let me know if it fixes your issue. Are you adjusting the valves yourself, or going to the shop for the adjustment?

Did you check your TPS as well, or go straight to the valves? I will be posting again tonight after I clean up my TPS on if it helped me out or not. Thanks.

 

[Pipelinz]

This was the price range I heard. My buddy just paid $250 to have his GSXR 750 inspected. Didn't need any adjustment. :laugh

Wow, that sucks for your buddy to dish out $250 for no adjustment at all. At least I'll be checking my valves to see if they need adjusting before dropping the cash. I hope for you that you find a bit better price.

 

[Ryan5544]

Wow, that sucks for you man, if you are feeling the frustration I am with this. Please let me know if it fixes your issue. Are you adjusting the valves yourself, or going to the shop for the adjustment?

Did you check your TPS as well, or go straight to the valves? I will be posting again tonight after I clean up my TPS on if it helped me out or not. Thanks.

Everything myself! Too cheap, and stubborn to pay someone. :laugh

I actually just cleaned the TPS because it was there, in front of me. Started going after it just for the valves.

If you haven't done it in the next week or two weeks, I'll let ya know! :laugh Should have everything by then. Takes forever to get shit to Canada.

 

[Tribalic One]

Wow, that sucks for your buddy to dish out $250 for no adjustment at all. At least I'll be checking my valves to see if they need adjusting before dropping the cash. I hope for you that you find a bit better price.

Yea, that's why I would like to at least do the inspection myself. The Yamaha techs near me told me not to even worry about it unless I start noticing excessive valve noise or engine performance issues. I don't completely trust that, and now that I see it's not to awful of a job. I'm just going to take a look for peace of mind.

 

[Ryan5544]

I'm legally retarded, when it comes to internal engine work.

Even I can do it! (with some pointers of course)

There's enough knowledgeable people around here, who are always more then willing to lend a hand!

DO EEETT! It's too easy once you kinda know what you're doing!

 

[Tribalic One]

lol, I hear ya, I'm a cheap bastard too! I calibrate and maintain all the production equipment used to manufacture optical encoders that are in the $1mil plus range all day, but when it comes to my shit I'm always a lil more cautious! :laugh

I'm definitely going to do the inspection, and hopefully it won't require any adjustment. If so, I'll see how motivated I'm feeling on tearing her down further.

 

[Pipelinz]

**UPDATE**
So I got home from work and thought I would try starting it again before I went to work on cleaning the TPS. Here is what was different:

Started as per normal (about 4 second after pressing the starter flash up)
This time I thought I would try to keep the RPM at 2500-3000 until it warmed up
After about 10 seconds at 2800ish RPM then engine died again
Yesterday, it did not do this
Tried again, this time with throttle at 4000RPM and the engine still died

Any thoughts if this point to anything different? It really didn't seem to care where the throttle was, it was really not happy until warm. Does this change anyone's direction of where i should go? Or does it still sound like TPS and/or Valves?

About to start taking off the tank etc. to get to the TPS, but wanted to post this first. Thanks.

 

[Pipelinz]

Okay so just ran diag mode and here is what i had:

Diagnostic Code 61 (malfunction history)
When it got here threw a faults code 14 and 30 at me

Thoughts? Please help.

*UPDATE* Codes cleared, i actually didn't do anything, just cleared them in diagnostic mode. I'll see if they come back.

 

[Pipelinz]

So I cleaned the TPS, it was a little dirty, but not too bad, buttoned everything up and flashed her up. Problem still exists, no change at all. I'm in the process of checking the valves right now. 2 beer into it so far and halfway through Metallica's Ride the lightening album.........lol. will post once valves are checked.

 

[Ryan5544]

opcorn:

 

[Pipelinz]

Okay, so after a bunch of beers and some good tunes, I got the valves all checked. It was actually easier than I thought. Now the good/bad news.

Good news:Clearances were all within tolerance and everything looked good and I got to do it on my own, which was very satisfying.

Intake: 0.11mm ~ 0.20mm (0.0043in ~ 0.0079in)
Exhaust: 0.21mm ~ 0.30mm (0.0083in ~ 0.0118in)

Bad News:I now have no idea WTF is wrong with my bike. TPS was good, valves were good. I spoke with a Yamaha tech at my local shop and he seems to be thinking ECU and/or temp sensor. Anyone have anymore input? I guess I need to take it to the shop now and pay for some troubleshooting.

 

[Ryan5544]

Well... Temp. sensor is cheap to replace.... :laugh

I would think the ECU is quite a drastic conclusion to jump to, but who knows!

 

[Pipelinz]

Well... Temp. sensor is cheap to replace.... :laugh

I would think the ECU is quite a drastic conclusion to jump to, but who knows!

Yeah thats what I thought as well. I'll start with the temp sensor next I guess and go from there. At least the weather is miserable right now, so I am not missing much riding, still, I am starting to get a bit frustrated. In the end, at least I am getting to know my bike better. Will let you know what it is, when/if I ever figure it out.

 

[Ryan5544]

What I wonder is though, if you take it to the guy to have it fixed, is he just going to replace the ecu, and charge you for it? (if it doesn't end up being the issue)

Or, is there a way they can test the current unit

 

[Pipelinz]

Very good point, didn't think of that. I do have other shop options in town here, so I don't HAVE to take it there and after your comment, it might be good not to actually. I'll do a search to find if there is a way to test the ECU, vice just replacing it. Thanks for the info and idea, that's why I love this forum so much. I appreciate all your help and time on this PITA issue.

 

[ChiefSmokeDawg]

Was anyone else not surprised the valves were within spec? OP indicated 29,000 KM not miles.

Good luck to you. Maybe someone has a spare ECU you can swap in to see if it helps. Any friend with an 06-07.

Is the air filter OEM also?

 

[Pipelinz]

Was anyone else not surprised the valves were within spec? OP indicated 29,000 KM not miles.

Good luck to you. Maybe someone has a spare ECU you can swap in to see if it helps. Any friend with an 06-07.

Is the air filter OEM also?

Yeah I was not surprised by the valves to be honest, but people had recommended to check them and since I was cleaning the TPS, thought I would get them checked anyway.

I will ask a buddy of mine on an 07 to see if we can try the ECU swtich, good idea for sure. The air filter was just changed in July. Thanks for the ideas.

 

[NSGF]

I believe I had this same problem on my 2006 R6. This video shows my exact problem:

(1:55)

For him, his bike was stock and he fixed it by getting the valves adjusted.

For me, I changed the plugs and it seemed to help a tiny bit, and then I remapped the power commander from a custom european map the guy before me did to a full akrapovic map (I have a full termignoni system). This fixed the problem 100%, and it has never happened again in the past 2000 miles.

Hope this helps!