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Old 10-06-2012, 11:16 AM   #1
ronandkat OP
Gnarly Adventurer
Joined: Sep 2007
Location: Greensboro NC
Oddometer: 157
71 sl70

Im restoring an sl70, and other than an electrical problem some great folks on here helped with it has went pretty smoothly. My only issues is this, I plan finishing it n order to sell for profit, and it currently smokes a little.
When I first got it, it did not smoke, however I took the top end off to inspect anyway. While in ther I put in a new OEM honda pistin, rings and clip.. On the stock bore with a new hone job done by a locak shop here.
Currently it smokes. not horribly, and I only have about 25 minutes run time on it overall, which included a small test ride through the gears, and alot of idle time trying to get the headlight working. I have read many places that sometimes until the rings seat, it may smoke. Other places I have read said it should not smoke period.
I have rebuilt few 2-strokes in my day, and of course, hard to tell with them. This is my first 4 stroke, It purs like a kitten and starts fist kick even after sitting for 3 weeks at a time. General consensus?

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Old 10-06-2012, 12:54 PM   #2
Skowinski's Avatar
Joined: Nov 2009
Location: Wandering In The Desert
Oddometer: 6,220
My brother had one just like that, same year and color. Brings back memories.

Did you check the piston - bore clearance when you put the new piston in? Ring gaps set correctly?
"A person needs a little madness, or else they never dare cut the rope and be free."
~ Nikos Kazantzakis
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Old 10-06-2012, 08:31 PM   #3
What could go wrong?
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Joined: Mar 2007
Location: Beautiful Revelstoke BC
Oddometer: 5,745
Cute lil thing, as for the smoke.... how much oil or what did you use as a rebuild lube on the piston?

Maybe the rings are not seated yet too.
Kawasaki H1 build thread

71- 450 Honda CL re & re

Just another pathetic sheep following the herd

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Old 10-07-2012, 08:06 AM   #4
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Joined: Apr 2009
Oddometer: 126
Sharp bike!
1973 CL70-K3
1983 KZ750-K1
2008 GSX1300-BKK8 #1120
Cardo Scala rider G4 PowerSet
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