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Hi baceti. It's not my case, since the engine had this behaviour in almost every gear, well bellow 180 km/h. Hell, I could only reach 160, 170 km/hIf I really insisted. In the end the engine seized after being worked on by an recommended mechanic...

I'm not sure. But I'm guessing it was due to over revving the engine. Either that or it was a hell of an coincidence my issue was a bad engine since the beginning . But I don't believe in coincidences

Aftre leaving the bike on a mechanic, e calls me almost a month after saying the engine ins knocking badly. I went there to check and indeed is knocking quite a bit (it wasn't before). After 2 km, when going back to the shop, the engine seized mid corner. Fortunatly didn't fall of the bike but...

Well... The stator rotor is from an newer Vmax and it's the correct one for only 1 pickup coil. It seems that the wiring/CDI/pickup coil/ Rotor is a match. The bad news is that I don't know what the issue could be... Maybe a misbehaved CDI? Here are some pics of the rotor and pickup coil:

So. I didn't touch the bike because I was uncertain about what to look for. I've also been studying how does a stator / rotor / pickup coil work and I'm much familiar now. It seems like the difference between the 80's and the 90's bike is not the stator but the rotor (I know, it has been said...

I've replaced the clutch in this bike and a great tip was to do it in the sidestand in order to not drip any oil and avoid a complete oil flush. Since there is quite some oil in the rotor area, should I drain it first? Or is there any suggestion to not create a huge mess in the ground? Best...

Thanks Fire-medic and MaxMidnight for the awesome tips. So. I've spent a bit identifying some things and the discoveries are disturbing. This is an 2EN bike with an 2EN engine. However during it's life it had an complete wiring loom because not only it has only 1 pickup coil but also te...

Since this bike seems to be an complete mismatched mess, I'm going to confirm that indeed there are 2 pickup coils. I've confirmed in the past that the serial on the engine seems to match the frame. I'll give you feedback regarding the coils. Also, since I'll probably need an replacement ECU...

I've digged a bit more, this time around the CDI/ECU Area. Just to be clear, this Vmax is an 85 Euro model, without Vboost. According to the VIN Plate, it's an 2EN model. The CDI in it is a TID14-95 3UF-11 (I think this ECU is only available on the 91- forward models) I'm pretty sure this ECU...

Hello. I've just had it cleaned and replaced all the soft parts. Every jet hat the correct size and the main jet I recall having the original mikuni markings in them. Because of it, I'm assuming that the emusion tubes are stock, but i could be wrong and if they're the cuplprit, they're still there!

I'm suspecting it could be the CDI since there were some significant changes made in the carbs and none of them affected the behaviour. Changing the cables also did nothing and running with or without the air filter also made no difference. So, if it has spark, fuel and air, and none of them...

It is an original Final Drive. But has nothing to do with it. It's "only" a severe lack of power on high rpm.

You are right. There was a significant change when "dry Syncing" with the calipers and doing it for real with the gauges. Just to be clear, the carbs are now synced and i was done properly with gauges.

I didn't had the chance or equipment to check the compression. I need to find someone that has the gauge for it. Same thing for the cam timing. I think the carb barrels open. But I've never looked at them under load. They slide very easly, the diaphragms are in exelent shape, the little oring...

It could be. The timing advance box that's operated by vaccum changes it's resistance by applying vaccum. However I cannot tell if the vaccum to resistance ratio is correct. All I've tested if it does react to the vaccum by increasing or decreasing the resistance (I've followed the Haynes manual...

This is a recording of the bike idling. A bit further back from the back tire, then closer to the bike, and then going away from it. After a couple minutes all the headers were pretty much the same at around 90 C°

And Here the idle and revs in neutral (second start of the day, bike is cold but not ice cold). The bike could rev higher and quicker when I'm just holding it around 8 or 9k to prove that it can reach it.

Here is a quick clip from today's lunch break, going 2nd and 3rd gear WOT:

Good Morning everyone, Unfortunatly, the issue still remains. No changes at all. (but seem to be more responsive in the midrage were I still have power). Would having the rear ignition coils switched cause a similar issue to mine? Because the it really seems like a redline limiter and the...

So. I've received a nice tip from the Carb Man itself via DM, asking about the aluminum carburetor slides that were installed on the bike. It turns out that according to him, these slides were originally developed to fit the Venture (and I'm going to guess the Virago 535 that also uses this...