KawasakiTrax Community
General Category => General Discussion => Topic started by: mswyka on December 27, 2017, 11:40:47 AM
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So we were blessed with a White Christmas and have enough on the ground to tease me into running a sled around the outside of the house every now and again.
This brings me back to our 79 Intruder. It starts easily and by all outward appearances runs strong. However it seems to run like the brakes are on and never builds up much speed.
Today it is in the garage and as near as I can tell, the drive line is all free and moves easily. Based upon this I would expect it to roll/slide quite easily on the snow. It does not.
I was about to check compression when I found my compression tester has gone missing.
I am interested as to thoughts that others may have regarding what I should be looking at.
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Do all bogie wheel turn freely? Maybe a worn belt, worn slides, track adjusted to tight. Lift track off the ground and run it, when you let off the throttle does the track continue to free wheel for a little or does it slow down and or stop quickly? If it does, something is tight, maybe the brake is hanging up a little. Just my two cents.
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The entire skid was rebuilt a year or so ago - after we first started having this problem.
Today the sled is jacked up in the garage. Engine running, the track spins quite easily. At idle, the track just sits there spinning.
At this point I am not sure what to think. The drive line seems to be free. The engine seems to run and respond appropriately. But out side, she just does not keep up with the other sleds.
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I'm looking in the Kawasaki book under general trouble shooting and there's one heading called Maximum drive converter RPM too low. Possible reasons: 1. Incorrect weights (too heavy) 2. Long belt or incorrect center to center distance. I believe it's supposed to be 12" from center of drive clutch to center of driven clutch.
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That could be a possibility. It has not been run much and the secondary could be sluggish.
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jetted too rich on top,there were some issues with that, what power jets?
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jetted too rich on top,there were some issues with that, what power jets?
Pilot - 25
Main - 150
Power Mag - 120
Power PTO - 130
All of our Intruders have this jet set up. We swapped in a different set of carbs in early 2013 the year we first identified problems with this sled.
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Have you checked the muffler for a mouse nest?
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Have you checked the muffler for a mouse nest?
Had the muffler off yesterday fishing around with a coat hanger and did not find any foreign matter in the pipe.
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Try swapping pipes with one of your other Intruders. Maybe swap belts, then clutches, then cdi, coils...one thing at a time until you find the culprit
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I would drop 10 points off my power jets....I seem to recall a service bulletin on this
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Try swapping pipes with one of your other Intruders. Maybe swap belts, then clutches, then cdi, coils...one thing at a time until you find the culprit
Yes, this would make sense. And I will probably take this approach once I beat my lazy side into submission.
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I would drop 10 points off my power jets....I seem to recall a service bulletin on this
I see over the years that the manual jetting ranged from a low of 140 to a high of 170.
A1 - 170
A2 - 140
A3 - 145
A4 - 155
My assumption was that they started out too rich and then over compensated and finally settled out at 155. We picked the current set up because that was the combination that our hottest Intruder so we tried to emulate that through the rest of the collection. It might be interesting to try dropping a size to see if it would make a change. If you have a copy of the tech service bulletin that would be interesting to read.
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bull. sm82 01 on some 81/82 intruders jetting may be too rich.....causes steady drop in max rpm....poor throttle response....low top speed change left carb to 125 leave right at 120....change to q-0 needle jet
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This may help. Hope one can read it.
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That is interesting. I will need to double check the weights on that sled.
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mswyka, I have been on this site long enough to know that you absolutely know what you are doing....
This Intruder is not running like it should.....many good suggestions already mentioned.
I will throw this out there...since you have already examined the drivetrain and all seems OK.
Is it possible someone has substituted an Invader tuned pipe on your Intruder sometime in the past?
The earlier Invader pipes were very similar in appearance to the Intruder pipe.
An Invader pipe, designed for around an 8000 RPM power peak would make an Intruder (7000 RPM) fall flat on it's face.(and vice versa).
This is why I like gixxer's suggestion to substitute components from your good running Intruder....1 at a time.
The frustrating thing as you have been troubleshooting this problem is that it is probably something pretty simple.......substitute components from your crisply running Intruder and hopefully something will reveal itself.
I wouldn't stress out too much on jetting and clutching, if it is trying to shift around 7000 RPM....the jetting can be a tad on the rich side and still run well....might be difficult to be on the rich side with the cold temperatures we are experiencing... ;)
Good luck and Happy New Year! 8)
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mswyka, I have been on this site long enough to know that you absolutely know what you are doing....
You are very kind. That is about the best compliment that I have ever been paid! Mostly I have learned about these sleds from the many mistakes that I have made - and fixing the many mistakes that had been made on the sleds before they came to us.
I didn't know about the different pipes. I will look into that. Thank you.
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imo rejet.../lighten weights...worked well back in the day