skrapiron -FSO wrote on 12/31/69 at 16:00:07:**New Update**
I went into work a bit late this morning, as I was stuck in my garage putzing with the carb on my bike.
I followed the instructions (thanks for those, by the way) and had the top and diaphragm off of my carb in less than 10 minutes.
I took out the two retaining screws and the needle popped right out. I took the spacer off and then built up from the C-clip using 3 small washers. I then put the spacer back on and ran it over some 100 grit sandpaper. Overall, I reduced the spacer by 1/3 to 1/2. Where I ran into trouble was the reassembly.
I had no idea that the plate holding the needle in place was keyed (I didn't pay close enough attention when I took it apart.) So I assembled it backwards, partially covering the two back holes. I figured that was not right, so I took it back apart and turned it over. Much better.
While I had the diaphragm out, I inspected my jets and throttle body. Everything looked clean (no carbon build-up), but I ran a small pick through each jet just to make sure.
I reassembled the carb , refitted the gas tank and partially filled it (maybe 1/2 gallon).
When I went to start it, I forgot to apply the choke, but to my amazement, it started anyway! Cold, no choke!
I let it idle for a minute while I refitted the seat then took it on a short test run.
I immediately noticed a HUGE difference. Instead of lugging from the start, the acceleration was MUCh improved. Likewise, the surging that I was feeling at low rpm operation was nearly completely eliminated.
When I opened it up, I still did not hear the back fire between shifts and the only time I could make it back fire was after letting the engine spool down from high RPM (maybe 5k or so). Before, it would backfire every time I would use engine braking to slow. Not any more.
The throttle response is amazing now. I can go from low throttle and crack it open with ne hesitation. Before, it would go thud-thud-thud-vroom.
I cannot thank you guys enough fof the information you gave me. I guess this is something that the dealer would never have done for me, so in a way, I guess they were right. It's supposed to run like that.
I'm happy! And i'm riding to Cranberry for lunch!
Thanks again!!!!!
-Skrap
Aloha,
I have been riding my bike with either a full or half out choke since I bought it.
The previous owner said it ran cold, and to leave the choke out until it warmed up. Well. I've been on a 2 hour ride and I still couldn't push the choke back in without the engine knocking or almost shutting down. I think I might try what you just did.
Please tell me where the instructions you followed are.
I red all of the "So let me get this straight..." quotes but I don't see the instruction on how to.
Thank you!