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Unread 06-14-2008, 04:18 PM   #1
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Default Par Car problems

I am new to this but here goes.
I kind of fell into this bussiness I live on a golf course and have some mechanical ability so everyone brings there problems to me.
The latest on is a 1991 Par car 2 cycle at first is would not run.
I checked compression 120 forward and reverse. the fuel system didn't seem to be very good so I bought a pump and it did not improve. Cleaned the lines and the carb. still no improvement. Then a friend told me about a old rupp they had that when ever the crank seals went out it would not run. So I took the motor out and sure enough both the seals were shot. I have replaced them and have it back in the cart. I set the timing acording the the book changed the spark plug and replaced the gas (just because it smelled old)
It will run but not like I would expect.
It seems like when it warms up it keeps losing power.
My rpm tack says it is running about 3000 rpm (no governer on the unit) and I checked the timing with a light looks good
Now I have removed the muffler. It seems to run much better.
The hand tach says that it is running about 4000 rpm but it is to loud to take out for a test drive.
I would replace the muffler if I could find one but I have not had any luck if finding one on the internet so far.
I have thought about cutting it in half to clean it out if that would do it.
I heard once of burning it on a grill to burn it out?
I am not sure if I am on the right track or not?
M. Wood
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Unread 06-15-2008, 08:00 PM   #2
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Default Re: Par Car problems

Welcome to the forum Mwood.......................

Someone will be with you soon..........................
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Unread 06-18-2008, 05:53 PM   #3
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Default Re: Par Car problems

what is your definition of soon?
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Unread 06-19-2008, 08:31 AM   #4
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Default Re: Par Car problems

It does sound like the muffler is clogged up. Most Yamaha 2 stroke owners with this problem, pull the muffler and burn them off by placing it in a open fire. I'm not familiar with the Par cars at all, so I'm just making a guess in comparison to the Yamaha 2 strokes.

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Unread 06-20-2008, 05:56 PM   #5
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Default Re: Par Car problems

Thanks for the feed back.
I did get in touch with a dealer and they said the muffler is $503.00. Which I beleive is a little out of line. It is also a retrofit. I am thinking of cutting it open clean it out then weld it back together. I am just not sure I can get it hot enough to get everything out of the inside? Last option is probably a 4" pipe with plates welded on the ends.
I will probably cut the old one apart tomarrow.
Thanks again for the infomation.
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Unread 07-01-2008, 01:07 AM   #6
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Default Re: Par Car problems

Did you cut the muffler and did it help?
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Unread 07-02-2008, 06:55 PM   #7
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Default Re: Par Car problems

yes I did I cut it at the seam and removed 2 baffles and drilled a 1/2" hole all the way through the center.
It looked very dirty but I could not see all the baffles I would think that there is a need for some back pressure.
It does run considerably better but not as good as I would like.

I am thinking that the muffler being pluged is probably what took out the crank seals.
I think it is probably as good as it can be.
not sure of hp but probably only 8 hp if that.
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Unread 07-02-2008, 08:22 PM   #8
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Default Re: Par Car problems

That may be all it will do. Mine will run 17 to 20 mph. The engine is around 8hp.
Look on u-tube for a Harley muffler replacement video. I have seen one before and they were using a stinger off of a dirt bike and it worked very well!
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Unread 07-12-2008, 07:21 PM   #9
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Default Re: Par Car problems

Hi Everybody. this is my first post. I am having some problems MWOOD is having. I have a Par Car 1991.in order to get the cart to fire up I have to put Fuel into the line, then it will run for about 1/4 of a mile then die. I waite about 1 minute and fire it up and of I go for another 1/4-1/2 mile and it dies again. other than using a sledge hammer could some one please help. thanks.


John T.
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Unread 07-14-2008, 10:17 AM   #10
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Default Re: Par Car problems

Quote:
Originally Posted by Lontex View Post
Hi Everybody. this is my first post. I am having some problems MWOOD is having. I have a Par Car 1991.in order to get the cart to fire up I have to put Fuel into the line, then it will run for about 1/4 of a mile then die. I waite about 1 minute and fire it up and of I go for another 1/4-1/2 mile and it dies again. other than using a sledge hammer could some one please help. thanks.


John T.
Sounds like the fuel pump.

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