Weird noise from engine?

"pawl" google it, it's the thing in your ratchet that makes the clicking sound.
"drum on tensioner end" change that to "tap on tensioner end". that's to rattle things around in there so the "Pawl" can snap into the next tooth and hold the chain tighter
your automatic chain tensioner worked great 30 years ago and it depended on spring tension. after 30 years that spring could be tired and that procedure will give it a little help.
that bolt the other guy turned, if your interested, holds the cam chain guide. it's plastic so the bolt gets snugged down on it and the lock nut gets tightened, you don't have to mess with it.

 

Oh, oops to Polocks post! Lol
I think I will do this first as I can wrap my head around this!

So correct me if I'm wrong: to sync the carbs I make sure the bike is cold, put a fan on it to keep it as cool as possible, attach the sync tool, set main idle to where I want it and then adjust air mixture screws to even out carbs? The other thing im wondering is the Po had a K & N air filter in it, will this affect the sync process?
Thx for your help!!

 

understood! Thx!

 

Will do, thanks!!

 

Sorry for misreading your previous post!
This makes a little more sense now! I think I'm gonna go through the sync'ing process first and see where that lands me! Kinda wish my bike had the manual tensioner, seems so much easier! Lol!
Thx for your input! !

 

Just wanted to say thanks to everyone on this forum! I have been on many forums for car related things and this has been by far the most helpful one! I've only had a motorcycle for the last couple months of my life and I've learned so much which has all come from here!!
Cheers to you all!!

 

So correct me if I'm wrong: ok to sync the carbs I make sure the bike is cold, really it should be warmed up, 10 minutes around the block, put a fan on it to keep it as cool as possible, the fan is to keep it from over heating, attach the sync tool, set main idle to where I want it the idle will change as the sync changes and then adjust air mixture screws to even out carbs? go thru the sync process first The other thing im wondering is the Po had a K & N air filter in it, will this affect the sync process? no

 

To synch the carbs you don't adjust the mixture screws but the synch screws.

Mixture screws are on top of carbs, you use them when you "colour-tune", meaning adjusting the air-gas mixture according to the colour of the flame inside the cylinder (special tool required).



and synch screws are here:

 

sync tools, each one has it's own details.
gauges, they bounce around a lot unless modified. and need to be verified
long tubes on a board, if the sync is way out they can get sucked out quickly, very quickly sometimes.
carb stix or any of the ones you buy, cost too much.
2 & 4 bottle, tend to be bulky and they can break (glass).
i use the 2 bottle, i did use the long board but needed the board for something else

 

You should sync carbs #1 and #2 first with the first sync screw on the right on the picture, then sync #3 and #4 with the sync screw on the left, and then you sync both pairs with the screw in the middle, by matching the readings of #2 and #3.

Idle should be set around 950 rpm when you begin the process and set at 1100 rpm when finished.

Now you understand why two guages make the process a lot faster.

 

i suggest just doing the sync for now, they really should be done together but for the first time it can get overwhelming. do your sync, go for a ride, see what ya got, think about it and do the mixture the next day

 

The YICS port should be blocked during the synchronization process, though you an save that for later as well.
There is a post in this link about how to block the ports. http://xjbikes.com/forums/index.php?threads/old-school-method-of-one-vacuum-gauge-carb-sync.2132/


Oh, if you live in Kansas or Oklahoma you can skip using a fan; just do the work outside and the wind will keep the engine cool.

 

Thx guys some valuable info here! First goal is to get my bottles made!

 

If you have a vacuum gauge you can use that instead; it will just take a little longer since you have to swap the gauge between ports.

 

I found a pretty good write up on making a bottle one, gonna try that out! Just trying to read up on the yics portion of this process! Really don't wanna buy this tool! Trying to see if there's one I could make or how detrimental is it for sync'ing carbs?

 

The two-bottle tool is quite simple. Make sure you put light oil in your bottles (like ATF) not water.

 

Cut strips from an old T-Shirt, soak them in ATF, and stuff them into the YICS manifold; works just as good as the tool does.

You don't absolutely need to block the passage to get a good synch, but you do need to block them to get a perfect synch.

 

Ah, a response I'm glad to hear! Thx man!!

 

So I had a few beers and made this! Lol



I altered from the write up I found as I found that spark plug boots from a car seem to do the trick nicely!!

 

I dont see any beer bottles.