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Route 6x6 Discussion Board * Restoration of older ATV's * Need points and plugs gap < Previous Next >

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Michel Duplin
New member
Username: Graphmic

Post Number: 2
Registered: 06-2004
Posted From: 67.70.78.151

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Posted on Monday, August 15, 2005 - 09:53 pm:   

Hello,
I'm restoring a Playkat 413 of 1971 ans the motor is a Rotax 440 fan cooled.
Cannot find the informations for the points and plugs gaps ?
I have plugs A-7 and A-8 wich is the most suited ?
Michel
Weedon Quebec
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david berger
Advanced Member
Username: Davidrrrd

Post Number: 131
Registered: 01-2005
Posted From: 172.151.201.223

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Posted on Tuesday, August 16, 2005 - 09:54 am:   

info i have is a-8
point gap.014 - .018 inch or(.35 - .45mm)
plug gap.020 inch or (0.5mm)
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Michel Duplin
New member
Username: Graphmic

Post Number: 3
Registered: 06-2004
Posted From: 70.48.27.7

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Posted on Thursday, September 22, 2005 - 12:05 am:   

Hello David,
Thanks alot the Rotax is now running like a baby exept the problem of the spark-plugs A-8 dont seem to stand the stress. After 4 or 5 hours of running there is always one that wont spark anymore ??? Let me tell you that the coil is operating "A 1" and the spark that is almost ½" long when I take the plug out... Just like if the power doent get to the tip... ?
Anybody can help out ?
Michel
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david berger
Advanced Member
Username: Davidrrrd

Post Number: 157
Registered: 01-2005
Posted From: 172.171.231.223

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Posted on Thursday, September 22, 2005 - 09:24 am:   

yah i have that problem alot also, im still not shur if a colder plug or if a little more oil in my mix or even if a little richer mixture might keep it cool enoph so it dosent crack insulator,
on mine after i get on it for a while it must idel for several minets before i can shut it off, otherwise unignighted fule air charge cracks plug insulater as motor shutsdown.
a colder plug might help.

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