Britbike forum Forums British Motorcycle specific Brands Triumph bulletin board Hanging rpms

Hey folks,


Haven’t ridden for past two months, upon starting bike doesn’t want to stay idled. Coaxed it for a couple mins while riding around the block , now doesn’t die when idling. Problem I have now is that occasionally the rpms hang when I let off throttle or seems like when I clutch in to shift rpms sometimes doesn’t come down. Now this happens on and off sometimes does sometimes doesn’t. Could carb slide be sticking? Maybe faulty throttle cable? Before it sat for 2 months it was riding perfect! Any suggestions would be greatly appreciated!


Thanks

Yes and yes... I would follow your suspicions.
Also two months is getting sketchy for todays fuels, but that's my experience, not a pissing contest. But hanging throttle sounds mechanical to me.

Sounds as though the advance is sticking. If you drag it down with the clutch whilst stopped and in gear and it stays down then it is the advance. If not then elsewhere.
If you have two felts on the point cam take one off. Chainwax works well on the felt and cam post.

My bike did this. I tried lubing the cable but this didn't work but a new cable fixed it.

Could also be a gummed up slide if the bike was standing, possibly, but my bike can stand all winter and the slide is ok.

Dave

Certainly sounds mechanical and I would suspect the cable first.

Years ago my mum had an Audi 100 Avant (remember those) that had a sticking throttle whenever the temperature dropped to freezing or below. Problem traced to moisture in the throttle cable. (only after I borrowed the car one cold winter morning not knowing about the issue and the guy in front of me did an emergency stop and I then rammed him because the engine was still revving as I braked. Its funny now but it wasn't as I careered into the back of him. Then later in the day I got an earful from my mum.)

John

I vote: lubricate throttle cable as a 1st step, perhaps WD40 or similar.

Thanks mates will try all about suggestions!