Thule 686 Atlantis 1600 Cartop Carriers - Page 6 - Answered Questions & Fixed issues

if it is a 4 stroke engine then the compression is too low and there has to be an investigation as to why blocked air filter would be the first place , then worn rings would be next

I would guess you have a broken spring. Find the one that is broken and replace it.

If you mean track tension, I raise the back of the sled and tension it until it is tight against the sliders in the front, but you can pull it away with 10-15 pounds pressure with your hand.

I have one just like that and yes I think they are all three cylinders. At least mine is.

Normally the pins and bushings get worn on the cams. You should replace them before they get too bad.

They are social animals. The silverback is the chief. Females nurse their young much like humans do.

I always use WD-40, it lubricates and also will burn, easier on the engine than starting fluid.

How is the belt? If belt is wore it will tach more. Maybe your driven pulley is not expanding properly, which lets the belt fall down into it changing gear ratio.

Take your serial # off the tunnel to a dealer. They should be able to tell you. You may even be able to find a website that has a chart.

Bad coil, crank sensor.

Is the clutch halves on the engine moving together when engine speed is increased? If so then I would look inside the chain box, maybe if you're lucky you just broke a chain. It should be real simple to find this, raise the back of the machine off the ground, have someone turn the driven pulley and see where (in the drivetrain) it stops turning.

Sounds like the alternator is bad.

go to answer questions and press all unanswered

Starter solenoids have the tendency to just stop working. Yamaha is notorious for going through the more frequently than any other manufacturer.

With engine running, what is the voltage at the battery?

Sounds like a short in your headlight wiring if it only happens with your brights. It is a separate wire. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gregg_27a4d257e54e7920

Dose the headlight get quite a bit brighter when you rev machine up, if it does it probably is still a regulator issue. You could see about installing a in line resistor if there is not one already or see if you can pick up a heavier bulb.

by the same position do you mean top dead center , the answer to this is NO if all the cylinders (2-4) are at TDC then the pistons would have to fire all the same time , I doubt this be enough to rotate the crank shaft thru one revolution, this is the simple reason that they invented the simple 30* Vee engine (millions of em) as this is the perfect angle to produce a circular motion in a crank shaft

NO! It would not run. https://en.wikipedia.org/wiki/Straight-three_engine