Starting Problems

Bingo! You have a symptom you can eliminate and its cheap.

Way-to-go and let us know what happens.

Cheers
Bill

I wired in the relay coil mod, which seemed to help my bike run better, more power. However it did nothing to solve the starting problem. I am still have to crank the motor for several seconds with the choke on to get it started. Before this started if I ran the bike everyday I could start it with no choke and its ready to ride in about half a minute of warming up. If I let it set for a day or two I could give it half choke and the same results. Now I have to give it full choke and crank the motor for 15 to 20 seconds or about 10 kicks to get it started. Whats weird is once the bike is running it runs great, idles great. After cranking for about 10-15 seconds its starts trying to fire then seems to get more and more fuel till it finally does start.
I checked the idle circuit and the choke circuit and sprayed carb cleaner through it with no effect.

If not already done, would perform compression test, remembering to hold throttle wide open during testing for highest psi readings.

Good Luck!

Patton wrote:

bubbap wrote:

Carb enrichener circuit may have blockage and need cleaning.

Patton is dishing out good advise here... IMHO.

Now that you have eliminated the ignition symptom you can move on to the next easiest/cheapest course of action which is cleaning the carb enricher circuit... you too could be a happy-rider real soon.

Best of success.

I checked the idle circuit and the choke circuit and sprayed carb cleaner through it with no effect.[/quote]

Carbs look clean inside. I took the choke plunger off each one along with the bowl and cleaned with carb cleaner. They didn't seem to be plugged

Let's say the carbs are not the cause of the no-start symptom... have you done a compression test? First dry and then wet?

What were the results, cylinder by cylinder?

Dry:
#1
#2
#3
#4

Wet:
#1
#2
#3
#4

Typically, if the compression increases significantly between Dry and Wet readings then that cylinder is losing pressure because of the rings. If the compression does not increase significantly then typically one or more of that cylinders valves are causing the loss of pressure.

Best of success.

I know you have done a lot of work on the bike, but what about trying a new set of plugs, since the coil voltage was low, they may be fouled and causeing a hard start issue.

I ride a kz1000,every so often the bike either wont start or or acts like its flooding out.A simple spark plug change will fix the problem.I believe the accelerator pump needs rebuilt and causes the plugs to foul.

Does your choke have a plunger, or is it a slide choke? If its the plunger i would check the plunger o rings, check for correct installation and seating, and try replacing..

The results are in= Low compression due to head nuts backing off. They are due to be retightened anyway. I went ahead and pulled the head to make sure the gasket was ok, and I could see the carbon scoring on the gasket showing it was leaking. As soon as I get my oil filters in we shall see how it runs.
Thanks for the help.

The pilot circuit is augmented by the enrichener circuit. If you have modified the airbox (such as running pods), the carburetors need to be rejetted. If the OEM airbox is used, then the pilot and enrichener circuits are not allowing gas through as they should.

What size of jet do you suggest for pods, newexhaust (baffled 4 into 2)?