1 Vacuum Lines, 85 K100RT? Tue Oct 31 2017, 17:36
flyinglow
Silver member
The K100RT I purchased recently was a little difficult to start and wouldn't run very smooth until it really warmed up. Much more cold blooded than the two other K100RT's I previously owned. I pulled the plugs and all 4 were a dark and a little sooty. It only has 30,000 miles so I decided to check the fuel pressure, which was fine, then pull all the injectors to clean and test them. Once removed, the inner O-rings on the injectors, engine side, were a little hard so I got all new ones. I bench cleaned the injectors and tested the spray pattern and all looked good. I was about to reinstall them and took a close look at two vacuum lines, one at cylinder one throttle body and one at cylinder four throttle body. I was surprised to see both rubber lines were cracked at the very end that pushes on the stub. Can anyone tell me what function each of these have and where they go under the tank. It looks like I will now need to remove the tank and air box to replace these hoses. I was going to insert a picture to make it more clear but when I clicked Insert image it asked me for a URL?? The pic is on my computer so I gave up.