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Thanks for the advice,.......could you tell me how to deglaze the bores? Also, can you get aftermarket rings for factory pistons?
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Tim Lowe
"Teck"
1979 xs1100 Special -
Cylinder De-glazing
A cylinder de-glazer is like a hone. Much cheaper to buy. You may also be able to find a tool rental place to get one. I know that here in Canada you can rent/borrow such special tools from Canadian Tire. There should be similar places in the US.
Most good jobbers (parts supply stores) should be able to get you after market ring sets. Good parts supply with machine shop services should be able to get you a ring set and glaze your cylinders for a reasonable price.
Do you know anyone locally who is familiar with doing engine work' From your questions I think you better get someone with experience to assist you.
Ken/Sooke
78E Ratbyk
82 FT500 "lilRat" -
Hey Ken/Sooke,
I thought the OEM sized rings were still available from Yamaha, and even oversized rings, but none of the pistons in oversize!?
Won't different brand pistons require possibly different style rings, or are all piston ring sets a standard width/thickness. Then all he would need would be to give the bore size, and his local parts shop should be able to match a set of rings, the 3 part oil rings, and the 2 upper compression rings?
Teck, the stock bore size is 2.815 in, or 71.5mm HTH!
T.C.T. C. Gresham
81SH "Godzilla" . . .1179cc super-rat.
79SF "The Teacher" . . .basket case!
History shows again and again,
How nature points out the folly of men!Comment
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Ring Sets
I don't know what is available beyond what has been written on this forum. I am lucky, Ratbyk has less than 50,000 km on it. Compression is 160 across the board and it does not burn any oil.
Original equipment rings are likely still available from Yamaha. Yamaha rings come with the penalty of Yamaha prices. I know that companies like Perfect Circle and Hastings and likely several other manufacturers make after market ring sets for virtually every popular engine ever produced. Their prices are usually about 40% less than the originals. Your choice.
Over the years it has been my experience that perfect circle are the best but with a penalty. They MUST! be broken in properly or you suffer in lower compression and oil consumption until you change the rings again. If bedded in properly they last longer than anyone else's. The Hastings seem to be more tolerable to the break-in period but there overall life seems shorter.
Just going from personal experience.
Ken/Sooke
78E Ratbyk
82 FT500 "lilRat"Comment
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