|
Post by urbanmadness on Apr 30, 2015 9:12:09 GMT -5
It's called a wasted spark system. Many engines use it, including many cars. They fire each revolution of the crank. It's a simple design and it works very well. Even my goldwing uses it. I had an ' chevy berretta that used it, a Pontiac grand am that used it.. my lawn tractor uses it. en.wikipedia.org/wiki/Wasted_spark
|
|
|
Post by urbanmadness on Apr 30, 2015 8:49:31 GMT -5
I'd ride the helix as is for a while and gain some experience, then move to a motorcycle. Older goldwings are pretty inexpensive, if you keep your eyes out and they are really forgiving bikes, especially if you go with the 1500cc.
I went from a 150, then a 250, then an Aprillia 500cc (most heavy feeling of the group, worse parking lot manners then my 1100cc goldwing) If I had to do it again, I would of done the 150 then moved to the goldwing. Out of all the bikes I've ridden, the 150 was the most fun.... the Aprillia 500cc was very comfortable at 90mph on the freeway (with plenty of throttle left top speed was like 105), and the goldwing is my baby!
Again, Goldwings aint sport bikes, so don't let the size scare ya.... The 1500 is as easy to ride as a 250 scooter, just a little heavy when it's not moving, but not bad.... The 1100, 1200 and 1000 are very easy to work on as well but the 1500 is the most forgiving to ride of the group.
|
|
|
Post by urbanmadness on Apr 22, 2015 16:00:29 GMT -5
That's great! Better to run a touch rich then lean... that's for sure.
|
|
|
Post by urbanmadness on Apr 22, 2015 15:57:05 GMT -5
go to .004 on both valves. I used to run my at .003 but it was a 150.
This will be counter intuitive... but it will hold the exhaust valve open a little longer and it will open a little earlier and close a little later. It will actually lower the crank case pressure.
What kind of oil are you using during break in? you might not of run it hard enough.to seat the rings.
|
|
|
Post by urbanmadness on Apr 22, 2015 15:22:49 GMT -5
Ok a couple of more questions....
Are the kits you have used from the same supplier? Is it a quality kit?
Did you install the rings upside up? . ---------------------------------------- I feel like on the exhaust stroke maybe gas is getting into the oil in the valve cover through the exhaust valve, but oil is not being sucked into the chamber. Usually when I change my oil the oil level does not go down until after the oil has blackened.
------------------------------------------
The head doesn't really open into the top of the head like that, unless you have a leaky exhaust valve (doughtful, but possible).. Maybe if you had a leaky valve, it could get to the top of the head thru the valve guide. I think It's getting thru the rings.
What has your break in process been? How many miles on the kit? what are your valve clearances?
|
|
|
Post by urbanmadness on Apr 22, 2015 11:44:05 GMT -5
Did you clock the rings when you installed them? (all ring gaps should be degrees from each other so that they don't line up)... And you have probably posted this, but what's your valve gap? I still think the rings didn't seat. How many miles has the BBK been on it? How did you break it in, etc. Symptoms of worn or not seated rings.... higher crank case pressures (your valve cover vent hose), combustion by products contaminating the oil, and of course, low compression. Is the plug oily? On the carb issue, I'd pull it and clean it and check for vacuum leaks.
|
|
|
Post by urbanmadness on Apr 22, 2015 11:16:29 GMT -5
did you rejet the carb when you went to a bbk?
is this a new problem (with the carb). Is your throttle cable too tight?
The other problem is blow by. I think the rings didn't seat correctly.
|
|
|
Post by urbanmadness on Apr 22, 2015 10:28:23 GMT -5
I don't think it's the valves, if he has compression. if you spray starter fluid and it's not starting and it has compression, then it's a spark issue, or the carb isn't on it (even if you took the carb off, and sprayed starting fluid down the intake manifold, it should start and run util it burns all the starting fluid, if you have spark and compression.
Check the valves, just because it's cheap and it rules it out but I think you will find it's in the ignition somewhere.
How are you testing for spark?
|
|
|
Post by urbanmadness on Apr 22, 2015 10:10:22 GMT -5
I re-read your post and my first response wasn't relevant.
Is this bike a 2 stroke? (you said your mix is right)
On the carb, are you talking about the idle speed or the mixture screw?
Thanks,
Ray
|
|
|
Post by urbanmadness on Apr 22, 2015 9:53:12 GMT -5
I second (or was it third) valve adjustment.
You usually have to adjust them pretty early the first time. (break in)
|
|
|
Post by urbanmadness on Apr 20, 2015 17:22:40 GMT -5
Yeah, down the carb, take off the intake and spray a couple of quick blasts down the intake of the carb. See if it sputters. If it does then it's a fuel or compression problem (you will know it has spark at least)
|
|
|
Post by urbanmadness on Apr 20, 2015 17:12:00 GMT -5
ok... readjust the valves....
will it run if you spray carb cleaner in the carb throat while hitting the starter?
|
|
|
Post by urbanmadness on Apr 20, 2015 17:03:30 GMT -5
ok... now we need a bottle windex, soapy water, carb cleaer, wd-40 or what ever.
Start the bike and listen to it. Spray around the where the carb meets the manifold and listen to it. Did the idle change? Do the same where the intake manifold meets the head. Spray it anywhere there is a vacuum line where it goes into a fitting.
What the liquid does, is plug the hole momentarily. That will tell you were a vacuum leak is, if you have one. Check for cracks on the intake manifold... they are notorious for cracking. Use the same method.
|
|
|
Post by urbanmadness on Apr 20, 2015 16:36:00 GMT -5
This one's a tricky one, simply because you haven't been able to re-create the problem, yet..
Next time it does it, try removing the gas cap in case the tank is not venting properly.
Just change the filter. They are cheap and will eliminate a source of failure. It's good practice to change it at the beginning of the season anyway.
Other possibilties....
sticking needle valve in the carb. they usually stick open, not closed tho but with it sitting it might have a little goop up in there (and yes, goop is a technical term).... If it does it again, and removing the gas cap doesn't do it, give the float bowl a sharp rap with the handle of a screwdriver. If that gets it restarted, then it's time to open the carb and give it a good cleaning.
could also be a bad cdi, or coil. CDI's and coils, when they are going bad, often misbehave when they get warm. And yes, sometimes they go just sitting. Carry an extra spark plug and if it dies, use the spare plug to see if you have spark. (never remove a plug from a hot or warm engine if you can help it, it's really hard on the heads spark plug threads)...
|
|
|
Post by urbanmadness on Apr 20, 2015 15:30:17 GMT -5
Were you running WOT when it died?
|
|