Author Topic: 78 Intruder 440  (Read 8773 times)

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58Evinrude

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78 Intruder 440
« on: March 14, 2014, 08:41:41 PM »
Anybody have anything good or bad to say about these sleds? I'm looking a nice one, I'd just like to know if there is something in particular I should be looking for when I check the machine.

thanks

gixxer6

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Re: 78 Intruder 440
« Reply #1 on: March 14, 2014, 08:52:01 PM »
1 year only for that hood design.  Look close at the track, if it has the metal bars, it'll need to be changed...,

58Evinrude

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Re: 78 Intruder 440
« Reply #2 on: March 14, 2014, 10:47:38 PM »
Thanks, I'll check the track, but I think it's been changed.

58Evinrude

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Re: 78 Intruder 440
« Reply #3 on: March 27, 2014, 06:44:42 PM »
Sorry, I've been busy and forgot to post this up. I bought the 78, it needs a lot of love. The stuff in the tank I wouldn't even call gas, it was that old. I had to add gas to it in my burn barrel to get it to burn. The floats in the carbs were seized to the rods, gas lines were rock hard, the recoil is broken, you guys know all about this stuff. The seat is mint, the windshield is good, compression is about 140 in both sides, and overall it's complete.

I've had the carbs soaking for a week, new gas line in hand, the tank is clean, and I have a rebuilt pump just in case. There may not be much snow left, but I'd like to get it out for one quick ride this year. And yes, it does have spark. I've only got one of pic, here it is. Someone must have loved it at one time, they got creative with the hood paint.  :)

gixxer6

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Re: 78 Intruder 440
« Reply #4 on: March 27, 2014, 07:31:47 PM »
Looks great!  Nice find!  Change the crank seals before you run it...It sounds like it's been awhile since it's been run, they probably need changing! 

58Evinrude

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Re: 78 Intruder 440
« Reply #5 on: March 27, 2014, 07:48:00 PM »
That's going to be one of my summer projects, tear the motor down and do a seal change. For now, I'd just like to hear it run  :) It's going to need ski's or the originals repaired before it gets ridden.

jimvw57

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Re: 78 Intruder 440
« Reply #6 on: March 28, 2014, 02:08:17 AM »
I'd go with replacing the jets in the carbs. if it has been parked that long, they are most likely clogged beyond what can be cleaned.

58Evinrude

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Re: 78 Intruder 440
« Reply #7 on: March 28, 2014, 06:31:10 AM »
I just picked up a whole box of Mikuni's 26, 32, and 34's, all parts carbs, along with a good set of 34's.  And with 3 Mikuni fuel pumps. I'm good to change out whatever needs doing now, somewhere in the box there has to be some jets that are close to stock!! All I originally wanted were 4 floats to replace the ones I can't get to move.. I have a feeling they will be destroyed by the time I get them out.  I couldn't turn down the package offer  :)

jimvw57

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Re: 78 Intruder 440
« Reply #8 on: March 28, 2014, 09:54:28 AM »
Been there!   some people can't resist cleaning out jets with a hunk of wire and making the holes a bit bigger. New jets are relatively cheap.

Interceptor398

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Re: 78 Intruder 440
« Reply #9 on: March 28, 2014, 10:15:42 AM »
I think that year intruder is the lightest one so if you are thinking racing it's a good choice?

58Evinrude

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Re: 78 Intruder 440
« Reply #10 on: March 28, 2014, 05:09:44 PM »
Nope, I like light for the trails. Not really interested in racing.

gixxer6

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Re: 78 Intruder 440
« Reply #11 on: March 28, 2014, 06:26:58 PM »
Light is good for the trails too! 

58Evinrude

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Re: 78 Intruder 440
« Reply #12 on: March 28, 2014, 06:29:36 PM »
And today I bought a gallon of REAL carb cleaner.. those guys will be spotless when they go back on, both inside and out!!!

gixxer6

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Re: 78 Intruder 440
« Reply #13 on: March 28, 2014, 06:43:13 PM »
What is "real" carb cleaner???

jimvw57

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Re: 78 Intruder 440
« Reply #14 on: March 29, 2014, 01:37:10 AM »
Hard to find but the 'real stuff' is actually cresylic acid, used to be able to get it at NAPA,  I think it also goes by the name Chem-Dip (Berymans product)

http://weldwarehouse.securesites.net/cgi-bin/einstein.pl?::1:WLDWH:1:084=0905
It ain't cheap but it does the job better than anything else. Make sure you remove any plastic parts before you use it.