Have a question for the knowledgeable as I admit I'm still learning to diagnose engines. Had to sync my throttle bodies and noticed that no matter how much I turned the screw in and out there would only be a negligible change in vacuum (using Morgan carbtune). So question I can't find an answer to is why this would be?
I figured the tools tubes were not sealed enough around the nipple. So I made sure that was not an issue and still same results.
The bikes at least a little smoother at rpm but it's not right because the bike sounds like a choked engine a few seconds on cold starts.
And yes I'm adjusting the right screws, done this a bunch of times with no issue.
did you blip the throttle a few times after you made an adjustment?
oddly enough the first time and the last time i tried to do my R6 it was with my buddy's morgan carb tune and I was experiencing the same thing. blipping the throttle like the manual said did seem to work.
I blamed it mostly on the tool since it uses metal rods instead of a liquid. i thought it just cant do small changes as well as a liquid.
Yep blip the throttle each time. I never had a problem with it and the tool always got nothing but great reviews. Maybe I will contact the company and see if it is tool related, but even so I would think the engine would change in tone or make some indication when the air screw is backed out or in fully.
Well I thought the vibration issues were solved at high rpm, but took it to the highway yesterday and its back. It's not just a buzz, but a pretty unnerving heavy vibration throughout the frame. Something is off and might be more than just a throttle body sync issue. Looks like I'm tearing apart the bike yet again. These are times were I would kill for a small motorcycle shop near me and not these rip off dealers that charge north of $80 to say it's all good when they know its not or worse try and convince you its x,y and z when clearly its not, uggh.
The cold start issue sounds like a fuel or air problem in one of the cylinders that eventually catches up and the bike starts to idle. But I don't get why its only when the bikes cold. If air can't access a cylinder through the throttle bodies at idle when the butterfly valves are closed why wouldn't that be an issue cold or hot. Same thing with fuel.
it doesn't sound like an idle problem to me. it sounds like an ignition or fuel delivery problem.
the sych only helps a bike idle. and barely at that with FI. this vibration does it feel like the motor or a wheel, tire or suspension. if it's speed related it's probably not the motor. unless it has an odd sound and has a loss of power.
Spoke with someone from Morgan and they agreed something seems strange. They said even the slightest movement of a screw should be enough to change the reading. They recommended using the tool upside down per the instructions for bikes like the R6 that pull a small vacuum. So I guess I'll give it another whirl for the 3rd time...but that's the charm right.
Alright so using the tool upside down helped and I could get the screws to move the gauge a bit, still couldn't get it spot on but I got other issues to fix first.
Still having cold start issues like I mentioned before. Still got a heavy spot in the engine. I've exhausted my knowledge so it looks like I will be giving the dealership my months paycheck. I put too many miles on this thing to spend each one worrying about the running condition of the bike. Just not enjoyable.
Woah thread revival, haha jk. Yea I did a compression check a while back and use a temp gun. Nothing out of the ordinary. Compression was slightly lower than the others in cylinder 2 but nothing alarming. Most of my problems have been fixed though since I posted this. I think originally the stealership did a horrible job adjusting my valves. The bike goes to a real mechanic this winter to get the valves sorted and anything in between. Will not have another summer where I 2nd guess putting 500 miles on it a weekend for fear of break down. But had it properly tuned by Bauce Racing which helped a lot, but I think combining that with valves that are properly adjusted will get her back to normal.
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