CX500 minor bob job - whooooot issues solved goes like a bat out of hell, for an old bike at least

Re: CX500 minor bob job - Road her to work, time to address issues

the link on the rear cover will give you info on the advance for TI bikes and proper alignment of the advance unit at the back cover, give it a good read further down the page
 
Re: CX500 minor bob job - Road her to work, time to address issues

Kamn said:
the link on the rear cover will give you info on the advance for TI bikes and proper alignment of the advance unit at the back cover, give it a good read further down the page
Click to expand...

Thanks I just looked quick here at work.
 
Re: CX500 minor bob job - Road her to work, time to address issues

on a ti bike it is much faster to just use a timing light ON EACH CYLINDER to check initial timing and timing advance

as per the factory service manual

then check coil resistance and pulsers as per fsm
 
Re: CX500 minor bob job - Road her to work, time to address issues

Maritime, I would definitely get the vacuum gauges. Mechanical is "close" the vacuum accounts for ring wear, inside vs outside carbs, carburetor spring fatigue.... blah blah blah. It allows you to get each cylinder to be the "same" as the others , even though the parts all wear differently. The mechanical sync is so that you can get your bike to ACTUALLY run after you pull your carbs apart :) haha
 
Re: CX500 minor bob job - Road her to work, time to address issues

Thanks bruno. So I got some stuff done but not all. Put new springs in. There is absolutely no slip now. New springes were 1-2 mm longer. And when you accel or down shift the grab is way stronger. I pulled the insides out of the plug wires and they were alright. Cleaned them and put them back in. Should I remove the resister? I need to get rod for that. I did not yet check coils and will do that tomorrow. Rode her again and still 80mph in fourth at 8k rpm

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Re: CX500 minor bob job - Road her to work, time to address issues

So I need to borrow or but a timing light and vaccum gauges. May be a couple weeks. I also need to pull the advance cover again and make sure that is all good.

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Re: CX500 minor bob job - Road her to work, time to address issues

easy to ,make your own vacum rig (for a twin cylinder engine)with clear poly hose and it works just as good if not better than any gauges for any money
 
Re: CX500 minor bob job - Road her to work, time to address issues

Got the exhaust painted today. Looks 100% better. Curing it now. Hopefully will get a timing light and the coils checked after that.

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Re: CX500 minor bob job - Road her to work, time to address issues

Vht cast iron.

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Re: CX500 minor bob job - Road her to work, time to address issues

Did the curing on the paint per the can, 10 min idle. 20 min cool, 20 min idle, 20 min cool etc. ended with a 1/2 hour ride. Bike works the best from 1/3-3/4 throttle, absolutely perfect. Still needs the 0-1/4 throttle tweaked and there was a little popping and surging while cruising in town at 25-35 mph. from 45-65 or 70 mph the bike is working perfect it cruises smooth accelerates good, whack it full and nothing, slow down and putt a long in 2nd or 3rd at less then 1/4 throttle and it is surging and popping a bit. I thought I had that sorted but need to check it again, Pouring rain today so I will hopefully check the coils. I will be picking up the brass rod to remove the resisters in the plug wires and I am still asking around about a timing light, I don't have the 50 bucks the cheapest one around me costs. I think I will make a vaccume guage as I have some tubing and it looks simple enough.
 
Re: CX500 minor bob job - Road her to work, time to address issues

just be sure and always have both ends of the homade vacum rig connected while running,if you pull one off while running you can suck in the oil which smokes up your work area hahahahah
on the rig i made for use on my TL1000 suzuki i used 2 small carb jets as reducers at each end ,mainly to help stabalize pulsation works really super
and i am betting your problem is not carb synch anyway
 
Re: CX500 minor bob job - Road her to work, time to address issues

Thanks, I don't think it is the sync either. I didn't get much done, son was sick yesterday so had to take care of him, while he was napping I did get the resistors replaced. I couldn't find rod the right size in either brass or aluminum, so I took 10 G wire and removed the isulation, twisted it, then soldered it along the whole length and made copper rod. Cut it to proper lenght and sanded the ends flat, we'll see tonight if that makes a difference.
 
Re: CX500 minor bob job - Road her to work, time to address issues

Ok so resister removal got me to 90 mph in 4th 8500 rpm. I need tobcheck my slow jets as I was tweaking the pilots at idle and I could screw them all the way in without effecting the idle after bike was fully warm. 1/4 turn out was ok to stop the surging and popping so I need to check and possibly change them down a size. I think I have some 85. Still need to test coils etc. I have the manual specs printed for the 82 and will go through them.

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Re: CX500 minor bob job - Road her to work, time to address issues

sounds more like you still have plugged emulsion tubes and idle circuits
 
Re: CX500 minor bob job - Road her to work, time to address issues

Well then it sounds like I need to pull the carbs and re-clean. Can't hurt. It's soo close it isn't funny. I could ride it as is just fine for the kind of bike it is, but knowing that it is at 85% of where is should be would haunt me. So I will keep plugging away. Thanks for the help and encouragement gents!
 
Re: CX500 minor bob job - Road her to work, time to address issues

i hope you switched to iridium plugs or some other resistor plug the system needs one resistor in the loop
 
Re: CX500 minor bob job - Road her to work, time to address issues

cxman said:
i hope you switched to iridium plugs or some other resistor plug the system needs one resistor in the loop
Click to expand...

I wondered that, but didn't read anything on it. No I didn't but I have those at home and will swap in a set.

So what did I fry by not having them in?
 
Re: CX500 minor bob job - Road her to work, time to address issues

Ok, hope to get to the testing and checking tonight, I am going to pull the carbs and clean them again, check the pilot circuit etc. I been riding it to and from work and it is running pretty good. It handles really well on the twisty 45 mph limit road, at 70 mph that everybody drives it. I need to address the brakes, they are not 100% perfect yet. Back needs adjusting as I pulled the lever to pain the exhaust and don't think I got it back on exactly the same as I had it, and the front needs a better bleeding as it is just a bit weaker then I think it should be. All and all I like this bike, great commuter secondary road bomber and I would even do a little freeway in it without issue as is cruises smoothly at 75 in 5th, I just need to get that top end there for if you need a burst to pass, or get out of trouble on the freeway, it has plenty for any roads with 55 or less limits where this bike really is designed for. The rear shocks we found are excellent. They handle bumps better than the ones I have on the GL and I need to find another set like them for the GL. Too bad these are eye - eye or I would steal then for it.
 
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