KawasakiTrax Community

General Category => General Discussion => Topic started by: 81drifter on January 25, 2013, 05:08:22 AM

Title: Drifter questions
Post by: 81drifter on January 25, 2013, 05:08:22 AM
I'm buying this drifter next week and I have a few questions. 1: is it 440 or 340? And 2: oil injection? Guy says 80 but I read here only 81 has it. And is 100 good for a complete sled with a locked(recently) motor?
Title: Re: Drifter questions
Post by: MaxThrottle on January 25, 2013, 07:17:14 AM
Appears to be a 1981. The build date would be from summer/fall 1980 but it certainly looks like a 1981 440 model. Look at the number stamped on the right side of the tunnel, It should be stamped as a  SA340-A5 or a SB440-A5. (making it an "81"). The '81 was the only Drifter with oil injection and the oil tank is visible in the first photo. The 1981 had the muffler mounted tranversly as in your picture too. $100 isn't bad if it's only problem is just the engine that's stuck.  Looks to be missing the airbox too (about 30 bucks on ebay). The drifter is a fine machine. It may not be as desirable as say and interceptor, but all in all is a great, reliable and versatile machine. I LOVE 'em! I say go for IT!
Title: Re: Drifter questions
Post by: 81drifter on January 25, 2013, 03:48:05 PM
Alright thanks. Looks in good shape. I remember my dad said he gets them unlocked with diesel and a thing called mothers. I took small engines so should be easy might put in new pistons and hone cylinders. New gaskets and wrist pins. Are oil pumps still available just in case. Guy said it was in barn for awhile then just went to sell it and was locked. Electric start by any chance? And I'm hoping  for 60+ mph. I'm a small dude(140 @ 5-10)
Title: Re: Drifter questions
Post by: Mad Kaw on January 25, 2013, 05:11:30 PM
i dont know if i would trust just pouring diesel into the cylinders to free it up & then running it... (although i have used trans fluid with a little acetone to free up a few old dirt bike motors that sat for years & they worked fine afterwards)

thing is when they sit,,, the crank seals dry up... so you're probably better off just tearing the motor apart cuz its most likely going to need seals anyways... theyre cheap & its good to know it has fresh seals in it

you dont really want to hone chrome bore cylinders,,, its thin & you'll burn thru it if you hone too much... fine steel wool will clean up light rust...

kawi oil pumps dont fail much... you can always test it & im sure you'd be able to find one if its bad..

if it were me,,, i would try to free it up with trans fluid/acetone.. if you can get it to move,,, flip it over & let it sit for a day to drain out & then do a compression test before splitting the case to do the seals... if it builds good even compression,, you could get away with changing the seals without pulling the top end apart

pull the exhaust off & look thru the ports to see how rusty the cyls are
Title: Re: Drifter questions
Post by: 81drifter on January 25, 2013, 05:14:12 PM
Thanks. Will try. How hard is it to split the case on these anyway? Any special tools/methods?
Title: Re: Drifter questions
Post by: Mad Kaw on January 25, 2013, 05:29:31 PM
its pretty easy
http://kawasakitrax.com/kawiforum/index.php?topic=7.0

for tools,, just a balancer puller to pull the flywheel off & a gear puller for the oil pump gear
Title: Re: Drifter questions
Post by: 81drifter on January 25, 2013, 05:34:27 PM
K thank a lot. Looking forward to a old timers run here in Dl on 16th. Hope to have it running so my dad and I can go together.  He's riding a 89 Polaris Indy. Can't tell if its 440 or 488. Will post pics when i have it and at run
Title: Re: Drifter questions
Post by: Lloyd (ljm) on January 25, 2013, 06:17:43 PM

 When you have the motor split. Check each of the crank bearings very close. They need to run free with no play.

 Also pull the suspension , lubricate the cross shafts, check the slides and the bearings in the wheels.


 Nice find on the sled. I have always wanted a 81, 440 Drifter. I have a 80,  440 Drifter
I got for Christmas when it was new.

 
 Lloyd
Title: Re: Drifter questions
Post by: 81drifter on January 25, 2013, 06:27:46 PM
Will do. And I know it looks to be in good condition. I got quoted 220 for bearings. Probably could be cheaper if I bring crank in. But if I need new bearing might as well have him do seals and gaskets.
Title: Re: Drifter questions
Post by: Lloyd (ljm) on January 25, 2013, 06:43:55 PM
 Outer bearing aren't hard to change.

 The inners would be much trickier

 Lloyd
Title: Re: Drifter questions
Post by: 81drifter on January 25, 2013, 06:57:47 PM
Is 180 to put them on since he needs to split the crank. How many bearings? He said 20 apiece
Title: Re: Drifter questions
Post by: Lloyd (ljm) on January 28, 2013, 05:44:19 PM


  I might get corrected on this  but I think 6 bearings in total
Title: Re: Drifter questions
Post by: 81drifter on January 29, 2013, 07:11:16 AM
Thanks
Title: Re: Drifter questions
Post by: 81drifter on February 01, 2013, 12:42:42 AM
Bought sled. Wasn't seized. Just frozen. Just need gas lines and filter. Could use new windshield. Will post video once running. Anybody have pic of where lines run? 
Title: Re: Drifter questions
Post by: 81drifter on February 01, 2013, 06:01:38 PM
Got it running and driving. Live it and its snappy. Action pics tomorrow
Title: Re: Drifter questions
Post by: Lloyd (ljm) on February 02, 2013, 03:45:02 AM


 GLad you got it going.

 I would plan on plulling the motor to do crank seals.

 They are a fun sled !!!

 You should have lots of entertainment with it.

 Lloyd
Title: Re: Drifter questions
Post by: 81drifter on February 02, 2013, 05:00:49 AM
Yea. Do it this spring most likely. Get the most fun out as possible. Runs really nice even wide open and goes through powder good.
Title: Re: Drifter questions
Post by: Lloyd (ljm) on February 02, 2013, 08:35:17 AM
 The Drifters are the best powder machine I have ever riden.
Title: Re: Drifter questions
Post by: 81drifter on February 02, 2013, 05:01:26 PM
Wouldn't start today in 5* weather. Wanted to at times but didn't. Ground was disconnected so we redid that. Flooded out by time I had to go. Any ideas? And primer isn't working today?
Title: Re: Drifter questions
Post by: Lloyd (ljm) on February 02, 2013, 05:08:20 PM
 Your primer would go in and out just not pump fuel?

 if so  I would suspect an air leak ion your fuel line. This would let fuel go back to the tank.
Title: Re: Drifter questions
Post by: 81drifter on February 02, 2013, 07:21:08 PM
Yes. Will look for leak. Old hoses still. Except from pump onward. Was working fine then stopped. Yesterday after she warmed up it was 1 pull. Then ran out of gasit seams when I returned to try today
Title: Re: Drifter questions
Post by: 81drifter on February 03, 2013, 09:03:52 PM
Got it going.
Title: Re: Drifter questions
Post by: Lloyd (ljm) on February 04, 2013, 04:24:16 AM


 What did you do to get it running?
Title: Re: Drifter questions
Post by: 81drifter on February 04, 2013, 11:38:30 AM
Had more gunk in main jet that wasn't letting needle seat all the way causing it to flood. And heads were loose and on wrong cylinder and had low compression because of it.  Still takes about 4-7 pulls to start cold but after warm just one.