Transmission Problem? Bandit 1200 motor

[Guest]

Hey all, i'm swapping a bandit motor in my gs1100 chassis. I noticed the other day that the transmission won't stay in neutral. I put it in neutral then roll it about a foot then i hear a click in what sounds like the clutch cover and it goes into gear. I haven't rode the bike yet and haven't had it running, so would it be possible that the clutch plates are sticking or something? I'm fairly sure its in neutral when it's doing this, but the neutral light isn't lit but that may be from my custom wiring not being 100%.

[stetracer]

Hey all, i'm swapping a bandit motor in my gs1100 chassis. I noticed the other day that the transmission won't stay in neutral. I put it in neutral then roll it about a foot then i hear a click in what sounds like the clutch cover and it goes into gear. I haven't rode the bike yet and haven't had it running, so would it be possible that the clutch plates are sticking or something? I'm fairly sure its in neutral when it's doing this, but the neutral light isn't lit but that may be from my custom wiring not being 100%.

Yes very possible

[yoshisakan]

The motor has been sitting for a few years. Dumb me, i just installed a lock up and didnt take the clutch plates out. At least I have air impact and the socket now.

[blowerbike]

did you install one of those diaphragm lock ups in the bandit engine or did you do the GSXR conversion on the clutch?

[stetracer]

did you install one of those diaphragm lock ups in the bandit engine or did you do the GSXR conversion on the clutch?

I am guessing he used the diaphragm lock up since he did one take the clutch apart. With the GSXR conversion you have to change the inner hub and pressure plate

[yoshisakan]

I took apart the clutch plates last night, made sure they were covered in oil. I have neutral again. They were a bit sticky.

I am using the MTC diaphram lockup. I'm anxious to see how it works. To be honest, i don't see how it can really apply that much force on the clutch. I am installing this thing correctly, right? I noticed the two diaphgram springs and i can't believe they're applying that much force either. Any idea what the coil springs are for that are between the flywheel gears? There is next to zero documentation on this setup and very few threads in the internet.
http://imgur.com/KMwR9Cm.jpg

http://imgur.com/x7sk9NB

[mmattockx]

I took apart the clutch plates last night, made sure they were covered in oil. I have neutral again. They were a bit sticky.

Can someone explain to me how sticky clutch plates will prevent finding neutral and/or cause the transmission to drop into gear from neutral? The clutch should have nothing to do with the operation of the transmission when you are sitting in the garage with the bike not running.


Mark

[yoshisakan]

I think the sticky plates were not allowing the clutch to disengage properly. That's my guess anyway.

[stetracer]

Rocking the bike back and forth make sure you can go thru all 5 gears it won't be as smooth as when the bike is running but you should be able to go thru all the gears if you can do this your tranny is probably good.

the coil springs are for setting up the stall speed or when the lock up starts working and can be purchased in different strengths. the arm weights are for how hard you want it to lock up less weight will give you a little slip at the lower rpm more weight will lock it up sooner. From your pics I would add 2 more grams of weight to each arm and use light springs for street use. How much No2 are you going to spray? And is the head ported
Can I ask where you got the motor, lock up, and No2 setup. Did it come from a guy named Marc from Canada? It looks very familiar.

[yoshisakan]

Hm, I didn't change out the coil springs, they are stock. I am not looking to race the bike, just have a little fun occasionally on the highway when I see the likes of a new sport bike. I am running a 100 shot and no the head is not ported. I pieced everything together on my own, the motor came from a wrecked bike a couple years back and has been in my garage since. I found it on ebay for $650 from a shop actually. Do you think the clutch as is will hold the power? The "weights" are just the washers on each arm, right? How many would you add to each? I don't have a digital scale. I'll also add that I'm not planning to use the spray below 40mph. I don't think there's any chance of my tire holding the power at speeds less than that.

[mmattockx]

I think the sticky plates were not allowing the clutch to disengage properly. That's my guess anyway.

With the bike not running you don't need to disengage the clutch at all to hit neutral, just rock the bike a bit if the gearshift won't move on its own.


Mark

[yoshisakan]

I've been rocking transmissions for 20 years lol. I don't know what else to say other than it wouldn't stay in neutral. It would go in for a few feet, click, then shift into 1st or 2nd. It seems to be working properly now.

[mmattockx]

I've been rocking transmissions for 20 years lol. I don't know what else to say other than it wouldn't stay in neutral. It would go in for a few feet, click, then shift into 1st or 2nd. It seems to be working properly now.

Bizarre. I wasn't being an ass, I was seriously wondering exactly how sticky plates were causing your transmission to drop into gear. Hopefully it stays working correctly for you.


Mark

[stetracer]

The Bandit motor did not come with coil springs they came with a diaphragm spring. If you have a coil spring clutch then someone already did the clutch conversion. Or are saying the coil springs are on the lock up because the 2 stage lock has coil springs that can be changed to change when the lock up starts working.
I can tell you this if you spray 100 hp to a stock rod Bandit motor then your rods will break. You need to at the very least put a set of 93 to 98 water cooled GSXR 1100 rods. Or just spray 60 hp and be happy. The stock Bandit rods will only hold about 180 hp max and the stock will make 125hp with a properly jetted carbs and a good exhaust.

I am using 1st gen Busa rods in my 1340cc Bandit because the Busa rods will hold 300 hp safely the GSXR1100 water cooled rods will hold 225 hp

[jimb12]

That is a stock Bandit clutch with an MTC lockup in your picture which is what I have in my Bandit presently. It can hold the power that you are trying to get if the plates are not worn out.

I would suggest dropping the nitrous 'shot' down to 40 or less to start off with until you have some experience with it. Dumping a 100 'shot' in for your first experience with nitrous might cause problems. Make sure that you DO NOT engage the nitrous unless at full throttle and over 6000 rpm. Engaging at low rpm/not WFO can blow up the engine, yes I know someone who did just that. If you don't yet have a full-throttle switch inline with your button, I strongly suggest installing one.

As far as the Bandit rods, they can handle well into the 200hp zone if you don't use really heavy pistons or really high rpm.
Of course this assumes not making the mistakes mentioned above (wrongly engaging the nitrous system).