So I'm SO close to getting my 64 benly on the road. However, one of the things that was strange to me was how gummed up and hard to turn the throttle was- I assumed it was the cable. However, upon closer inspection, I found that the previous owner had used a way stiffer spring in the carb (the one that maintains tension on the throttle cable. These aren't included in rebuild kits- ANYBODY KNOW WHERE I CAN GET ONE? There was one on ebay (with random bits from a carb), but it sold- plus, $25 seemed a bit steep...
Man, it's getting warmer here and I'm itchin' to get that bike on the road!!