Hey all,Thanks for the explanations. Boggy, I put in a new plug back when I got the bike started for the first time. A few months ago, but it's only been started once since. I may give charging the battery fully a shot, but it seems like this is much more of a mechanical issue.Based on Arizoni's advice, it sounds like the Sprag is binding up, not disintegrating (though that may also be the case I suppose). I think every now and then the sprag will lose its grip on the crankshaft, and those are the times when I've been able to kickstart. When I get the "slipping" feeling through the kicker, it's smooth, so it doesn't feel like teeth slipping or grinding off a gear. More like a smooth slip. My best guess is that the sprag is locked up so tight that the clutch plates slip before the sprag does. So there's no movement in the duplex primary chain, which explains why the tappets won't budge when I get the "slipping" feel through the kicker. Thoughts?Thanks guys.
I have read through all of this mainly because I had a run away electric start and wonder if I have damaged the sprag clutch. This sprag clutch sounds like that mechanism one finds on top of a rope start lawnmower. I have plans on replacing the starter solenoid, but wonder how does one check to see if the sprag has been damaged. Also, after reading all the comments above, I have wondered if the electric motor itself was ever tested to turn over?
I don't understand your last sentence? If the starter motor isn't turning you can't get the sprag noise. And "any" sprag noise is bad noise. That's why I've avoided the ES for 831 miles (I used it a few times in the winter of 2010/11 when I first got the bike running) & I always kill the engine with the decompressor, never the key. Once in a while, shutting down with the key will fire the plug coming up & it will drive the piston back down the wrong way. Horrible noise. Can't happen with the decomp. I could do it (rebuild the sprag), but I don't WANT to. Ever. I want the ES for things like killing it in traffic & other nightmares. Actually, I don't think the AVL was ever meant to have an electric starter. And low battery voltage is a starter's worst enemy.
Sounds like a couple of things are going on. You really need to know what carb you have, clean it and tune it with the right jets. Amal and Mikuni jets are not interchangeable. Can you get us a pic? Check out this Mikuni manual for tuning: http://tinytim.forumcircle.com/viewtopic.php?t=1604&
True. The manual (3rd link) is for a VM and it won't match the CV carb. But there's lots of good basics there on how a carb functions, regardless of type. For the CV carb, check out the gallery and search for ucal. To me the video sounds like the carb needs a good clean and tune.
I just bought this battery and after 200 miles it seems to be working great... it's ten bucks on amazon with another ten bucks shipping.http://www.google.com/search?client=safari&rls=en&q=YT4B-BS+AGM&ie=UTF-8&oe=UTF-8It's a battery for a little 50cc scooter, but it seems to work just fine for kick-only motorcycles.
Too late. The en-ess-ay already logged it into their data base and will forever know you want to change your battery.
Update--Pulled the carburetor off today for cleaning, and to see just how it was jetted. Continuing on the odd train, it looks like the main jet is a 130 (!). Didn't get a good look at the pilot jet. Honestly, I'm not even sure it was marked. Thanks guys,RP
Update--Idled fine after I pulled the enricher (choke knob) out all the way. Thanks guys,RP
Update--Tried messing around with the airscrew (little flathead screw under the brass throttle plate, right?) to get the idle to sound right-- it didn't like that and died with a bit of dusty smoke from the air filter. Huh. Thanks guys,RP
Update--Also, in regards to the air screw, how tight is tightened all the way? When I tighten it to where it feels like it was before, seems like I hit a small spring (bit of a creaking sound). Should I keep twisting until it's locked down all the way before backing it off, or is the spring the extent of how far I should screw the airscrew in?Thanks guys,RP
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