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Norm's 2 stroke repair center Having problems with your 2 stroke engine? Just ask Norm, he loves to tinker and troubleshoot engines

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  #31  
Old 04-02-2013, 01:04 PM
nightcruiser nightcruiser is offline
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Default Re: Gotta Super Rat that quit firing

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Originally Posted by dmb View Post
the cover has air vents from the factory to keep it cool. heat will kill a cdi.
I don't have a super rat, but I know my cover doesn't have any vent holes in it, and I don't seem to see any in the pictures provided in this thread? I know this system with the entire CDI under the cover is quite a bit different than what the rest of us are running, on a regular HT motor getting moisture under the cover is a bigger threat than heat.
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  #32  
Old 04-02-2013, 03:46 PM
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MotorBicycleRacing MotorBicycleRacing is offline
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Default Re: Gotta Super Rat that quit firing

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Originally Posted by nightcruiser View Post
I don't have a super rat, but I know my cover doesn't have any vent holes in it, and I don't seem to see any in the pictures provided in this thread?
Holey billet Super Rat mag cover sold by Sick Bike Parts.

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  #33  
Old 04-02-2013, 04:17 PM
nightcruiser nightcruiser is offline
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Default Re: Gotta Super Rat that quit firing

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Originally Posted by MotorBicycleRacing View Post
Holey billet Super Rat mag cover sold by Sick Bike Parts.

I don't think the stock cover has vent holes but not sure cause I've never had a super rat and there wasn't a picture from every angle. I suppose the cdi with the built in magneto coil would make the ignition less susceptible to moisture but more susceptible to heat, so it makes sense to have the vent holes (and the fan fins)...
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  #34  
Old 04-02-2013, 04:27 PM
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MotorBicycleRacing MotorBicycleRacing is offline
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Default Re: Gotta Super Rat that quit firing

double double

Last edited by MotorBicycleRacing; 04-03-2013 at 10:32 PM.
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  #35  
Old 04-02-2013, 04:29 PM
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MotorBicycleRacing MotorBicycleRacing is offline
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Default Re: Gotta Super Rat that quit firing

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Originally Posted by nightcruiser View Post
I don't think the stock cover has vent holes but not sure cause I've never had a super rat .
You are a tough nut to crack,
the billet cover is copying the Super Rat mag cover.

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  #36  
Old 04-03-2013, 09:35 PM
sunshinebiker sunshinebiker is offline
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Default Re: Gotta Super Rat that quit firing

That may be why there was no gasket available for a Super Rat! It's hard to seal vent holes...

I only ride in when it's dry, so I can keep the shims in for a little while. Thanks to everyone for their input!
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  #37  
Old 04-03-2013, 11:01 PM
nightcruiser nightcruiser is offline
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Default Re: Gotta Super Rat that quit firing

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Originally Posted by sunshinebiker View Post
That may be why there was no gasket available for a Super Rat! It's hard to seal vent holes...

I only ride in when it's dry, so I can keep the shims in for a little while. Thanks to everyone for their input!
A regular CDI is sealed and pretty much water proof, this new CDI with built in coil looks to be sealed up in a similar manner so I guess it's all waterproof under the magneto cover on the super rat. So it would seem spacers should be ok, but I would prob just grind the fan fins down until they didn't rub the cover when the gasket is missing....
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  #38  
Old 04-29-2013, 01:04 AM
sunshinebiker sunshinebiker is offline
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Default Re: Gotta Super Rat that quit firing

Just a follow up: I now have 37 miles on the bike and have been slowly expanding the drive range. I run it mostly in the half throttle range, but I have taken it to WOT on the flat, and I'm just a tad south of 30 mph; pretty good since the bike weighs 62 lbs and I'm in the 180s. Thanks to all who shared advice and tips. Looks like my little super rat is going to be a great summer ride.
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  #39  
Old 05-13-2014, 11:02 PM
Gp masta Gp masta is offline
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Default Re: Gotta Super Rat that quit firing

Quote:
Originally Posted by MotorBicycleRacing View Post
You are a tough nut to crack,
the billet cover is copying the Super Rat mag cover.

Is there any gains on using the new style bottom ends??
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