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93 Elite 50SR Starts and Runs, but Won't Idle

Posted: Wed Aug 10, 2011 6:14 pm
by Jim Moore
Hi Guys,

My 93 Elite 50 died on me the other day. I can get it started (not easily) and it will run as long as I keep the throttle open, but it dies as soon as I come to a stop or as soon as I let the throttle go to idle.

Any advice would be appreciated. I'm not a bad DIYer, but I know nothing about carbeurators so the more detail the better. I have already replaced the spark plug and played with the idle speed screw a little bit. It didn't seem to help.

Thanks in advance,

Jim Moore

Edit: I've been reading through some of the tech docs. Recently mine has had another symptom. It wants to idle high and stay at a high idle even after it is warmed up. Could I be having a bystarter issue? (Not that I would know a bystarter if it jumped off the bike and bit me in the *.)

Edit2: Hot d***! I fixed it. I got all the plastic off and started looking around. Eventually I figured out the carbuerator was hanging on by one bolt, a loose bolt a that. The other bolt had disappeared completely. Luckily I have a vast storehouse of fasteners from 15 years of wrenching on BMW motorcycles. Sure enough I found one the right length and thread pitch. I tightened that b**** down and "VROOOOOM!" the mighty scooter came to life. Sweet!

Re: 93 Elite 50SR Starts and Runs, but Won't Idle

Posted: Thu Aug 11, 2011 12:17 am
by dun rite
Happy endings are always nice. way to go

Re: 93 Elite 50SR Starts and Runs, but Won't Idle

Posted: Thu Aug 11, 2011 10:06 pm
by Wheelman-111
Greetings:

Nice detective work, Colombo. But as that character always comes back with "One more thing..."

What bothers me about your story is the lack of a reason why the carb came loose. The o-rings in the insulator and flange should've acted like a locking device. If the screws were tightened to spec, the insulator installed correctly, and the flange threads aren't stripped, the carb should stay put basically forever.

May be you know why it came loose - you can always blame some previous owner... - but do seek and find a reason or it may happen again. An air leak here can be very bad for the engine.

Re: 93 Elite 50SR Starts and Runs, but Won't Idle

Posted: Fri Aug 12, 2011 9:02 am
by Jim Moore
Interesting. I have no idea why it came loose but I can see what you're talking about. The thread are def not stripped. I'll keep an eye on it for awhile to make sure it stays put. Thanks.