85 2 stroke pulsar timing

Woodman4450 · 12-12-2020, 05:52 AM

Hello new to this forum I have 85 ezgo 2 stroke the pulsar adjustment seems to make no difference in performance cart runs awesome in reverse but sputters forward engine has new seals and compression is 140 both ways. Has new carb and oil injector has been removed I cant find a timing mark anywhere to check to see exactly where I am set at any help would be appreciated thanks

cart around · 12-12-2020, 10:01 AM

In post #22, you will find the 85 manual. Pages L-14 to L-18 deal with timing.
https://buggiesgonewild.com/showthre...=105501&page=3

Did you do anything with the piston? Factory compression is only 120 PSI.

Woodman4450 · 12-12-2020, 11:14 AM

Thank you very much. I have not done anything to the engine except new belts and cleaned out muffler or expansion chamber whatever they call it

cart around · 12-12-2020, 11:56 AM

Have you driven it at all? Forward, or reverse?

Woodman4450 · 12-12-2020, 03:02 PM

Yes I have driven it both ways it was faster in reverse then forward i had to make slots in pulsar ring longer to get to 30 degrees timing forward runs good now and reverse is sluggish

cart around · 12-12-2020, 03:28 PM

That's strange. the ring should be centered in the middle of the slots to get the perfect timing.

I wonder if the key on the flywheel has sheared.

Dabble Inn · 12-12-2020, 11:57 PM

30*? No wonder it's sluggish in reverse, normal timing is 18* forward which gives reverse about the same or a hair more. Remember the general rule, the farther you advance the timing the hotter it will run. Easier to get away with (to a point) in a liquid cooled engine but very critical in an air cooled, be careful

12-12-2020, 05:52 AM	#1
Woodman4450 Not Yet Wild Join Date: Dec 2020 Posts: 3	85 2 stroke pulsar timing Hello new to this forum I have 85 ezgo 2 stroke the pulsar adjustment seems to make no difference in performance cart runs awesome in reverse but sputters forward engine has new seals and compression is 140 both ways. Has new carb and oil injector has been removed I cant find a timing mark anywhere to check to see exactly where I am set at any help would be appreciated thanks
Woodman4450 Not Yet Wild Join Date: Dec 2020 Posts: 3

12-12-2020, 11:14 AM	#3
Woodman4450 Not Yet Wild Join Date: Dec 2020 Posts: 3	Re: 85 2 stroke pulsar timing Thank you very much. I have not done anything to the engine except new belts and cleaned out muffler or expansion chamber whatever they call it
Woodman4450 Not Yet Wild Join Date: Dec 2020 Posts: 3

12-12-2020, 11:56 AM	#4
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,495	Re: 85 2 stroke pulsar timing Have you driven it at all? Forward, or reverse?

12-12-2020, 03:02 PM	#5
Woodman4450 Not Yet Wild Join Date: Dec 2020 Posts: 3	Re: 85 2 stroke pulsar timing Yes I have driven it both ways it was faster in reverse then forward i had to make slots in pulsar ring longer to get to 30 degrees timing forward runs good now and reverse is sluggish
Woodman4450 Not Yet Wild Join Date: Dec 2020 Posts: 3

12-12-2020, 03:28 PM	#6
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,495	Re: 85 2 stroke pulsar timing That's strange. the ring should be centered in the middle of the slots to get the perfect timing. I wonder if the key on the flywheel has sheared.

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12-12-2020, 10:01 AM	#2
cart around Test before replacing Join Date: Aug 2013 Location: Ohio side of the Pennsylvania border. Posts: 3,495	Re: 85 2 stroke pulsar timing In post #22, you will find the 85 manual. Pages L-14 to L-18 deal with timing. https://buggiesgonewild.com/showthre...=105501&page=3 Did you do anything with the piston? Factory compression is only 120 PSI.

12-12-2020, 11:57 PM	#7
Dabble Inn Nincompoop Club Member Join Date: Jun 2016 Location: Idaho Posts: 1,178	Re: 85 2 stroke pulsar timing 30? No wonder it's sluggish in reverse, normal timing is 18 forward which gives reverse about the same or a hair more. Remember the general rule, the farther you advance the timing the hotter it will run. Easier to get away with (to a point) in a liquid cooled engine but very critical in an air cooled, be careful

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