Recent content by Bjorn

But the new carbs are not the sollution to my issues.... Unfortunately. Installed them, and synched them at idle in order to proceed synching them off-idle. But I'm getting basically the same weird symptoms at idle as with the other keihin carbs.... Sometimes hard to start, might idle nicely...

The plastic injection moulded parts fractured. I got a new replacement. Also a realisation that this failure would be hard to repair on the road.

So I decided to go to heiden tuning for some support on the carb tuning. He was real busy and had no to little experience with the keihins CVK34. He recommended a pair of new mikuni VM34. Pre jetted for the XS. Since I got very limited time I decided to go this route. Hoping it needs minimal...

I'll try the lube First , much easier haha. About those butterflies. Is that when they are not centered properly? I never loosened those screws before.

There should be 2 springs. Just like Gary s picture. I can see I got two springs in there! So weird. Pushing on it closes the butterfly. Maybe when the idle is high, the play in the sync mechanism allows me to push and "choke" the RHS cylinder, resulting in the idle dropping faster. This should...

Just went down to 38 pilots. Started with 2 turns on the mix. That's where I started last year with these carbs. The bike was half warm, needed some choke to start en keep running. Would run really nice at 1200 rpm! After a few minutes started to run less nice so I reduced the choke. Idle...

You are running that Vape ignition to right? It's not really tunable...

I redid the valves, after I retorqued the head. "What side is dead"? You mean it's running on 1 cilinder? Because it doesn't sound like it. It just barely keeps running and sometimes it coughs and stalls. Yeah the looks are great but I want to drive it haha. Thing is driving me nuts (again...

Just checked the sync. Looks spot on if you ask me. Regarding that advance. I need to check. Seems early for the advance to kick in right?

Cleaned the carbs, checked every jet, used carb cleaner, used compressed air. Reassembled everything, tested the bike. Result: no difference. Still the idle is either staying high (>2000rpm) mainly when I open de throttle stop. Or it's around 900. 1/16 of a turn can make that difference...

My sidestand bolt always loosens during the season. This year im trying one of these nord lock rings. Got great experiences with these on other occasions

Yeah I sure used compressed air! How do the diaphragms affect idle? I was never able to let them rise slowly by holding a finger over the oval opening. But was told to test them by blowing air in that opening to rise them, which they do.

Try cleaning them again, I would assume the ultrasonic cleaner and carb cleaner would have done their job..

Well I was suspecting that bumping the idle adjustment screw just raised the butterfly open to much, running it on the pilot jet mainly. The slides don't open (took the filters of to see) so the main jet is not feeding. I have zero popping in the exhaust when I close the throttle. I also...