Re: Linkert DC discharge port
Posted: Thu Dec 02, 2021 6:30 amHi to all,
time for an update ... unfortunately the float level did not cure the problem. It made the overall "behaviour" much better, but still no running bike. After some playing around I did get very consistent response from kicking, but the engine still did´t start.
Anyway, now the plugs have been wet after several kicks (as with my XLH) but I noticed, that the carburetor was covered with fuel on its top (around the throttle body). Well, I just ignored it and continued kicking ... after propably 500 kicks and two cramps in the right leg I considered this as relevant
. Looking in my compiled Linkert DC documents I found the hint of "untold problems" through leaking gaskets. OK, I need to take of the carburetor and dissassemble it to re-check everything. Remember that I brazed the new discharge ports to the throttle body, so a warped throttle body wouldn´t be surprising. And it was!
Next step was to face to throttle and carburetor bodies mounting surfaces. Luckily this was straight forward with my small lathe.
Then, yesterday I gave it another try -- my first 10 kicks with "stock" settings (idle mixture screw and idle speed) would be rather disappointing, so I stopped recording. Then I started to play around with throttle position and suddenly "wroooom"
-- wow, what a sound, very stable idling (although a bit higher than normal) and a very nice throttle response. I stopped after one heat cycle due to heavy rain, but I will work on the carburetor settings to ensure consistent starting. I will compile a video of course, give me some time for that one.
Anyway I am very very happy and can assure you, that without the various inputs from all of you it would have put the bike back in boxes!
Maybe on more thought: As I needed to open the throttle a bit for starting -- was my idle mixture to rich or to lean?
Cheers, Ralf
@panic: what happened to your posts?
time for an update ... unfortunately the float level did not cure the problem. It made the overall "behaviour" much better, but still no running bike. After some playing around I did get very consistent response from kicking, but the engine still did´t start.
Anyway, now the plugs have been wet after several kicks (as with my XLH) but I noticed, that the carburetor was covered with fuel on its top (around the throttle body). Well, I just ignored it and continued kicking ... after propably 500 kicks and two cramps in the right leg I considered this as relevant
. Looking in my compiled Linkert DC documents I found the hint of "untold problems" through leaking gaskets. OK, I need to take of the carburetor and dissassemble it to re-check everything. Remember that I brazed the new discharge ports to the throttle body, so a warped throttle body wouldn´t be surprising. And it was! Next step was to face to throttle and carburetor bodies mounting surfaces. Luckily this was straight forward with my small lathe.
- IMG_20211128_193202_530_small.jpg (418.61 KiB) Viewed 16370 times
Then, yesterday I gave it another try -- my first 10 kicks with "stock" settings (idle mixture screw and idle speed) would be rather disappointing, so I stopped recording. Then I started to play around with throttle position and suddenly "wroooom"
-- wow, what a sound, very stable idling (although a bit higher than normal) and a very nice throttle response. I stopped after one heat cycle due to heavy rain, but I will work on the carburetor settings to ensure consistent starting. I will compile a video of course, give me some time for that one.Anyway I am very very happy and can assure you, that without the various inputs from all of you it would have put the bike back in boxes!
Maybe on more thought: As I needed to open the throttle a bit for starting -- was my idle mixture to rich or to lean?
Cheers, Ralf
@panic: what happened to your posts?