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I really don't want to talk about it to much because it leaves me a bit unconfortable... It was the cheapest registered bike in the country! However this doesn't mean it was that cheap...

I'll try to take some pictures and post them. This Vmax was bought in France, but I'll need to confirm on the badge. Is the same one that has the VIN right?

About the Ignition wiring. I've been thinking about it but didn't change the order of anything since it only starts to get upset at 6.5k RPM and under load (in neutral i can rev it to around the redline without any issue, and I need to be carefull with the throttle not to over rev the thing) I...

The routing is good with those hoses. I've even did a test run without them and had no changes. Also the breather itself (where the hose connect on the carb) have been cleaned.

I really have no idea what does de diode do. I only recall seeing it just hanging around. I'm going to put it on the check list for this weekend and search around for what is it's function.

It has been always on the ON position . I don't recall trying the other position to check for any change during the stutters but I can try it.

Regarding the 12V on the red/black wire, I've never tested it I think I do because if the ignition toggle switch is on the off position and I try to crank the engine, both bulbs light up as they should. The diode block is that rectangle made from some kind of hard resin under the seat with an...

I'm not sure if the breather is ok but riding without the fuel cap on didn't change anything.

I Don't think it is. Fuel lines are brand new, filter is also brand new. And the pump seems to provide plenty of fuel and with a somewhat generous pressure (discovered that when I've disconnected the carbs fuel line right after priming and I got a nice "pop" followed by a short squirt of fuel)...

Regarding the glow, I'll try to post a video about it but I can assure that the fuel light doesn't light up when it should (I've run out of fuel while syncing the carbs) and switching the fuel switch to reserve didn't change nothing. I've quickly realized that I was out of fuel because the pump...

I've followed the instructions from the Haynes manual to check if the pressure sensor is working and it seems fine. However disconnecting the plug from this unit (leaving the vaccum still connected in order to avoid leaks) does not have any noticeable effect on the top end.

Good Morning. I've thought about swapping the CDI but it's not easy to get an hold of a spare one. I've checked the plugs for the CDI and at least they're clean whiteout signs of corrosion. Regarding the exhaust: it's a stock unit (not sure if it's the original '85 unit). By running without...

Later feedback. I've replaced all the gaskets on the carbs, set the bowl fuel height like Fire-medic advice. Double checked the main jets and they have the stock size engraved in them. Replaced all 4 rubber boots bellow the carbs. No difference. Then I've synced the carbs. It improved low end...

Yes. I've removed it from the bike, and followed the instructions from the Haynes manual (applying 12v to certain contacts and measuring the 2V signal from a diferente contact, and the 2V would change based on the vacuum applied). It worked as expected but I can tell that it was replaced in the...

Thanks you for your sugestions. The carbs floats were ajusted using the second picture as a reference for dry float level. I don't have any starter fluid at the moment. Would brake cleaner work as well? The Orings on the intake seem fine and most importantly are installed. Regarding the air...

So, I'm a brand new European member but I've roamed around this forum and still I'm unable to fix my bike: I've bought an cursed 85 restricted French Vmax, site unseen, and worst of all, sent a buddy of mine to check and bring the bike (since he was a veteran rider and I've assumed he would...