79 z problems
12-05-2004, 10:56 PM
#1
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Join Date: Oct 2004
Location: Arlington texas
Age: 39
Posts: 20
79 z problems
restoring my 79 z50 all stock i just put a new top end in it and now it will start and run for about 5 sec and die i put 3 different carbs on it thinking that was the problem but they all did the same things it has good compression. i am lost dose anyone have any sugestions
12-05-2004, 11:57 PM
#2
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Join Date: Dec 2003
Location: In Her Dirty South TX.
Posts: 197
Re: 79 z problems
Might be a spark issue. Are you sure the carbs you are using are in working order? Or do they work on another bike at least? My bike would still run even though the carb needed to be rebuilt bad.
12-06-2004, 12:26 AM
#3
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Location: DALLASS
Age: 58
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Re: 79 z problems
whats the plug look like justin?
black or white?
also check your cam timing/along with your point timing
if you cant figure it out pm me and you can bring it over and we can take a look see
black or white?
also check your cam timing/along with your point timing
if you cant figure it out pm me and you can bring it over and we can take a look see
12-06-2004, 10:34 AM
#4
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Join Date: Oct 2004
Location: Arlington texas
Age: 39
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Re: 79 z problems
Originally Posted by Z50NATIONALS
whats the plug look like justin?
black or white?
also check your cam timing/along with your point timing
if you cant figure it out pm me and you can bring it over and we can take a look see
black or white?
also check your cam timing/along with your point timing
if you cant figure it out pm me and you can bring it over and we can take a look see
brake cleaner wont hurt it, right?
12-06-2004, 01:09 PM
#5
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Join Date: Oct 2002
Location: Woodridge, IL
Age: 46
Posts: 1,216
Re: 79 z problems
OHH man points....
Best advice, let a trained professional set them for you. IF you set them wrong or they are goofed up, the bike WILL not run no matter how bad you want it to. Thank goodness for CDI...
Best advice, let a trained professional set them for you. IF you set them wrong or they are goofed up, the bike WILL not run no matter how bad you want it to. Thank goodness for CDI...
12-06-2004, 03:36 PM
#6
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Join Date: Jan 2004
Location: DALLASS
Age: 58
Posts: 657
Re: 79 z problems
contact cleaner is fine justin
points are easy
not as easy as cdi heheheheh
set your gap first .0013 (business card thickness if you dont have a feeler gauge) then set the point to open at the f mark
did you check the cam timing while you were looking
an old cam chain will give you the same symptoms of bad timing check and see where it is at and see how much slop it has
points are easy
not as easy as cdi heheheheh
set your gap first .0013 (business card thickness if you dont have a feeler gauge) then set the point to open at the f mark
did you check the cam timing while you were looking
an old cam chain will give you the same symptoms of bad timing check and see where it is at and see how much slop it has
12-07-2004, 08:39 PM
#8
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Join Date: Aug 2004
Location: Chardon,Ohio
Age: 39
Posts: 95
Re: 79 z problems
you might need new points because mine did what yours did a couple times (starts and runs for 5 seconds then die)before the spark finally disappeared. also if your points havent been replaced in a long long time it might be a good idea to replace those.
also points gap is easy to set just turn the flywheel a little past the F mark to where the points are open the most, and this is where you wanna take the gap measurement from.
oh yeah, use a feeler gauge like fab said, i don't believe a business card is too accurate
also points gap is easy to set just turn the flywheel a little past the F mark to where the points are open the most, and this is where you wanna take the gap measurement from.
oh yeah, use a feeler gauge like fab said, i don't believe a business card is too accurate
12-08-2004, 02:46 PM
#9
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Join Date: Jan 2004
Location: DALLASS
Age: 58
Posts: 657
Re: 79 z problems
yep my bad fab
.013 which is the same thickness as a business card,but feeler gauges are cheap at the local car parts store i would recommend buying one if you have points and you need them to adjust your valves too so a handy lil tool to have
more than likely justin if the points are right the condensor is bad
that will cause an irradict spark and do like you say its doing
bring it by if you dont get it figured out
.013 which is the same thickness as a business card,but feeler gauges are cheap at the local car parts store i would recommend buying one if you have points and you need them to adjust your valves too so a handy lil tool to have
more than likely justin if the points are right the condensor is bad
that will cause an irradict spark and do like you say its doing
bring it by if you dont get it figured out
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