Recent content by berend2712

It worked! And for some reason it has also seemed to fix my hanging idle problem. It doesn't die anymore at traffic lights. I'm riding with confidence again, luckily there's some summer left :bike::bike:. Now I can move on to synching the carbs and some fine tuning, but this was definitely a...

Well I found the problem, right hand spark plug cap was connected to the cable through about 3 mm of corroded gunk. I'm amazed I was even able to ride so well with this (cap plus cable measured inf on my multimeter). Attached a picture of the plug in question. Also, I thought the DOHC had one...

OK, will do. For now, I checked and confirmed my right spark is waaaay weaker than the left one, so I'll try and find what's wrong there. I think the whole idle thing gets very complicated because the right cylinder just doesn't (or hardly) fires at idle. The idle is basically the same if I have...

So I finished another session of carb cleaning, checked the float level and then put everything back together and did some adjusting when it was idling in the yard, seemed to run really well also when it got warmer. Idle screws are now at 4 turns out. Haven't synced the carbs properly yet (this...

So I just tried to put one of the old screws in, and it screws in and out all the way without any resistance. Would it be a really bad idea to skip the tap and just put the new screws in there? Cheers

Ahh that's a shame. KMS don't have them unfortunately and the rest is not open on the weekends, so I'll ask the guys at the machine shop on Monday and if they don't have it I can try the others. Thanks for the advice and enjoy that air show!

Thanks for the advice, I will make a couple of calls tomorrow and see if I'm in luck. The machine shop at my work might have it as well, but nobody was in today unfortunately. Any chance I could use your taps (if you have the right size) in exchange for some beers? Cheers

So I decided to give it a go with the easy out. Someone at my work promised to help me, it started out great, we used the drill press so the hole was straight and centered, started turning the easy out, and the screw started to move. The joy was unfortunately soon followed by the snapping sound...

Have been travelling for a while so no real time to work on it much, but I started thinking it might be actually be something related to the ignition like bcware suggested. Checked it yesterday, and it seems that if it gets hot the right cylinder hardly makes a decent spark. I could get it to...

I adjusted my valves (with shims) about 2 months ago, so they should be good. Timing is electronic, so I can't change that. I'll start by looking into synching the carbs and trying to extract the stuck mix screw, maybe there's an air leak in one of the o-rings. Thanks for the tips :)

Thanks for the list :). Anything specific on that list that would cause a poor idle but otherwise OK performance? Cheers, Berend

Hello fellow xs400 enthousiasts, I had a thread earlier with some issues I wasn't able to resolve, and unfortunately they still haunt me. It seems to be a fairly common problem: when the bike is warm, it won't idle properly, which means I have to keep it revved at about 2-2.5k rpm, taking a...

Before I did that I thought I'd check the idle mix screws like you suggested, and I found the left one was only set at 1.5 turns out, so I'm assuming that might have something to do with the issue. Annoying thing is that the thread on the right one is completely stripped:banghead::banghead: so I...

I tried that thing with the slide. The diaphragm with the damage on it goes down in about 7 sec, the other in about 10, but it doesn't seem like a very significant difference. I did a temporary fix on the exhaust, it seems a little better now, but still after about 20 min of riding the revs go...

So I just went for a ride, and the engine runs a bit less great than last time, now the engine doesn't die down when I don't open the throttle and engage the clutch. It hangs at about 3k rpm and then slowly dies down to idle speed. This seems typical for a leak somewhere, but I can't find one...