Problems after Technigas RS installation

[cdmvento]

With all the knowledge I see on this board, I'm hoping someone can shed some light on my problem. First of all I have a 2007 Triton Li with 70cc Airsal, Arreche carb, and Unifilter. It was running fine with the stock exhaust, but pretty slow. I recently purchased and installed a Technigas RS pipe. Since the pipe install, there has been no power from idle to about 7k RPMs. After it hits 7k it goes crazy and accelerates to 55-60mph in no time. Mid throttle is very unresponsive and sounds like it is popping (hard to tell over the noise of the exhaust). When the scooter is on the main stand and I rev the engine- it bogs heavily from idle to mid throttle. I adjusted the mixture screw in quite a bit to stop the bogging, but this caused the idle to become very irradic, moving from 1500 to 2800. The needle is at the lowest setting. I am running the stock arreche idle jet and the 95 main jet. Seems like it is running rich, but doesn't seem like it should be with the pipe upgrade, since it was fine with the stock pipe. Any suggestions on what I can check or change? Thanks in advance.

[dachness]

First of all... the Triton Li is two stroke? I was not aware of that. If so, how much did you get it for? What did the bike come with, helmet, alarm, lock? Also last question, most important to me is if it has rear disk breaks? Post pics if you can, I would like to see it.

Second, by saying you have your needle at the lowest position, I am assuming you have the clip at the highest position. This would mean that you are in the leanest position possible for the needle. This does not sound right to me. About the bike not running well, you need to adjust the needle and mix screw. If your needle clip is on the top notch I would suggest putting it in the middle and then adjusting your mix screw. If you can get it to idle well take it for a ride. Then you can adjust the needle if it is needed. Raising the needle(lower the clip) richens the mixture while lowering the needle(raising the clip) leans the mixture. Remember you should also be doing plug chops.

Good Luck,

Daniel

[Bandit79]

Like Daniel wrote ... needle in middle pos. and mix screw about 2 rounds out. If you still have the same problem the try re-jetting .. it sounds like your jet is wrong. Try -10 and +10 .. jets are cheap and easy to replace. And switch your rollerweights with 4 gram rollers.

[dachness]

Stock GT5 roller weights are 4g, so I am assuming Li has same weights. I ended up using half 3s half 4s with my stock vario and RS pipe.

[Geeves]

Make sure your needle is in the middle position. Screw your air/mixture screw in all the way, then back out to 1 turn out. Gap your plug at.032 thousands. Ride the beast to see how it responds, turn your air/mixture screw counter clockwise at 1/8 increments until your engine wants to start bogging out. Then back the other way until she runs like a bumble bee. If you are using the stock air box, drill a couple of holes in the top for a little more air (1/4 in)
will do it.

[cdmvento]

I was able to adjust the carb to get it to run, but it's still not right. Wide open the bike is perfect, idle is not great, and mid throttle is surging. First of all, the idle- I set the idle to 2000 and everything is running fine. Then the idle drops down to about 1300- I rev the engine and it's back up to 2000 for a while then back down to 1300. No matter what I do with the idle speed it does the same thing, even when the idle speed is set to about 3000. I tried adjusting the mixture screw, but it does not change the idle. Second problem is the mid throttle. When I hold the throttle part way open, it seems to run really rich- some popping and poor response. I've tried jets ranging from 80 to 95 with the stock airbox and also with a free-flow filter. The needle is all the way down to get mid to run leaner, but that didn't help. The bike ran fine with the stock pipe and 95 jet, but now it is really not responding well.

[cdmvento]

Problems continue. After a long winter I finally got my scooter out and running. I had a small exhaust leak and fixed that, but this thing will still not run correctly. First of all, it starts up fine, but the idle is too low. i set the idle to 2000, but it will drop to 1300 when the engine warms up. I can adjust it again and it will stay there for a while and then drops again. Mid-throttle performance is my other problem. When I get to part throttle the response is horrible. The engine will pop and sputter. Wide-open is great. I have tried main jets from 75 to 95, with better performance from the smaller jet. Right now I am running a 80 main and the needle set in the leanest position. I don't want to go any smaller. I'm using the stock airbox with the snorkel removed (to keep the noise down a bit). Any ideas on what I should try? It seems like the engine is still running rich but it's hard to believe it would be with a 80 main. Thanks in advance.

[cdmvento]

Here is where I am now. First of all, the technigas rs pipe is still causing me problems. I have the stock pipe installed with and airsal 70cc and arreche carb. I'm using the stock airbox with the snorkel removed. With a 90 main it runs great but is a little slow on acceleration and will top out at about 45. With the same setup but the technigas rs installed, it is much quicker but runs horrible. Wide open it is perfect, idle it is perfect, but anything in between is terrible- popping and sputtering. The needle is down all the way to lean the mixture, but still it is too rich. The only way I was able to get is tolerable is to go to a 80 main, but that is too lean running wide open. Any ideas on what is going on here? Is this just how this pipe works?

Another issue. Just purchased a Malossi Multivar and installed it with the RS pipe in order to keep the RPMs up. Now the engine bogs really bad, even with 3.5g rollers, 2000 rpm clutch springs, and 1500 rpm rear spring. It seems like the new var is causing the clutch to engage immediately instead of letting the engine rev up. Stock variator is fine, malossi bogs down. If I compare the two, the shaft on the stock is about 1/4" longer than the malossi- wouldn't this cause the belt to run higher at the start?

[cdmvento]

Think I'm getting somewhere. Turns out the problems I was having with the Tecnigas RS pipe and poor performance was not related to the pipe at all. It turned out to be the reeds. I put in a little heavier reed and now it runs without having to drop the main jet down to 80. I am currently running a 90 main with the stock airbox (snorkel removed). Seems to run fine wide open, but still needs work at mid and idle. The strangest problem is at about 8000 rpm I get a rough popping noise out of the intake. Any lower or higher it's gone. Any ideas on what could be the problem?