My 3AJ rebuild
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keny72
- Three to collect
- Posts: 209
- Joined: Mon Oct 27, 2014 6:20 pm
- What Bike or Bikes Do You Own?: 1986 Honda VFR750Fx2, 1997 Honda Transalp 600, 1995 Honda SevenFifty, 2001 Kawa ZR7S, 1994 Kawa Zephyr 550, 1985 Yamaha FZ750
- Previously Owned Bikes: 2004 Suzuki DL650, 1990 Yamaha FZR600, 1986 Yamaha IT200S, 2006 WR250 Husky, 2010 Yamaha XT1200Z, 1984 Suzuki RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1985 Honda CBX750F, 1986 Honda VFR750F, 1987 Transalp 600,, 1992 Honda CBR600F, 1997 Kawasaki KLE500, 2001 Suzuki Bandit600S, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1990 Yamaha FJ1200, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1990&1989 Yamaha XT600Z Tenere, 1981 IT465, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1992 Kawasaki KDX200, 1996 Suzuki RM250, 2006 KTM250SX, 1995, 1997 & 2002 CR125R, 1996 CR250R, 1981 Suzuki PE175, 1989 Suzuki TS250X, 2011 BMW R1200GS, 2005 KTM EXC250 Racing, 2009 Yamaha XT125X, 1995 XRV750, 1990 CBR1000F, 2000 Yamaha TRX850
- Location: Finland
Re: My 3AJ rebuild
The low comperssion is a thing to deal whit, but the main reason for this heavy oil smoke has to be the leak from the oil channal, the amount of oil on top of the piston can´t just come from low compression. Also explains why the heavy oil smoke started same time as oil pressuer got to the top end. But yes, its a seal thing, the low compression is the costy thing. I have both my cylinder to work today as in same house there is a shop that has tools to messur the cylinders. I also borrowed home the compression tester from them. Hope to get them messured today if there is any hope for just a hone, or bore and new piston is whats needed. The piston I messured, was well inside tolerance, 94.950 mm I recall it was.
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keny72
- Three to collect
- Posts: 209
- Joined: Mon Oct 27, 2014 6:20 pm
- What Bike or Bikes Do You Own?: 1986 Honda VFR750Fx2, 1997 Honda Transalp 600, 1995 Honda SevenFifty, 2001 Kawa ZR7S, 1994 Kawa Zephyr 550, 1985 Yamaha FZ750
- Previously Owned Bikes: 2004 Suzuki DL650, 1990 Yamaha FZR600, 1986 Yamaha IT200S, 2006 WR250 Husky, 2010 Yamaha XT1200Z, 1984 Suzuki RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1985 Honda CBX750F, 1986 Honda VFR750F, 1987 Transalp 600,, 1992 Honda CBR600F, 1997 Kawasaki KLE500, 2001 Suzuki Bandit600S, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1990 Yamaha FJ1200, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1990&1989 Yamaha XT600Z Tenere, 1981 IT465, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1992 Kawasaki KDX200, 1996 Suzuki RM250, 2006 KTM250SX, 1995, 1997 & 2002 CR125R, 1996 CR250R, 1981 Suzuki PE175, 1989 Suzuki TS250X, 2011 BMW R1200GS, 2005 KTM EXC250 Racing, 2009 Yamaha XT125X, 1995 XRV750, 1990 CBR1000F, 2000 Yamaha TRX850
- Location: Finland
Re: My 3AJ rebuild
Is the OEM pistons make TKR from Japan?
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Mezo
- Dashingly Handsome
- Posts: 6108
- Joined: Wed Mar 23, 2011 11:01 am
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- Previously Owned Bikes: Honda SS50, Suzuki TS50, Honda CB100, Honda CR125RZ, Yamaha YZ125, Kawasaki KX250, Suzuki TL1000S, Ducati 900SS, Ducati 900SL, a few Tenere`s.
- Location: Queensland Australia
- Contact:
Re: My 3AJ rebuild
Rings a bell? i used TKRJ (from Japan) on my rebuild, mucho cheaper.keny72 wrote:Is the OEM pistons make TKR from Japan?
Mezo.
"A wise man makes his own decisions, an ignorant man follows public opinion"
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keny72
- Three to collect
- Posts: 209
- Joined: Mon Oct 27, 2014 6:20 pm
- What Bike or Bikes Do You Own?: 1986 Honda VFR750Fx2, 1997 Honda Transalp 600, 1995 Honda SevenFifty, 2001 Kawa ZR7S, 1994 Kawa Zephyr 550, 1985 Yamaha FZ750
- Previously Owned Bikes: 2004 Suzuki DL650, 1990 Yamaha FZR600, 1986 Yamaha IT200S, 2006 WR250 Husky, 2010 Yamaha XT1200Z, 1984 Suzuki RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1985 Honda CBX750F, 1986 Honda VFR750F, 1987 Transalp 600,, 1992 Honda CBR600F, 1997 Kawasaki KLE500, 2001 Suzuki Bandit600S, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1990 Yamaha FJ1200, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1990&1989 Yamaha XT600Z Tenere, 1981 IT465, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1992 Kawasaki KDX200, 1996 Suzuki RM250, 2006 KTM250SX, 1995, 1997 & 2002 CR125R, 1996 CR250R, 1981 Suzuki PE175, 1989 Suzuki TS250X, 2011 BMW R1200GS, 2005 KTM EXC250 Racing, 2009 Yamaha XT125X, 1995 XRV750, 1990 CBR1000F, 2000 Yamaha TRX850
- Location: Finland
Re: My 3AJ rebuild
Mezo wrote:Rings a bell? i used TKRJ (from Japan) on my rebuild, mucho cheaper.keny72 wrote:Is the OEM pistons make TKR from Japan?
Mezo.
I think these I found are just the T.K.R.J only the add has the J missing in the add, but is on the box in the pic. Seller has only one left, but don´t know if its STD, 95,50 or 96,00....I have sent him e-mail.........
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keny72
- Three to collect
- Posts: 209
- Joined: Mon Oct 27, 2014 6:20 pm
- What Bike or Bikes Do You Own?: 1986 Honda VFR750Fx2, 1997 Honda Transalp 600, 1995 Honda SevenFifty, 2001 Kawa ZR7S, 1994 Kawa Zephyr 550, 1985 Yamaha FZ750
- Previously Owned Bikes: 2004 Suzuki DL650, 1990 Yamaha FZR600, 1986 Yamaha IT200S, 2006 WR250 Husky, 2010 Yamaha XT1200Z, 1984 Suzuki RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1985 Honda CBX750F, 1986 Honda VFR750F, 1987 Transalp 600,, 1992 Honda CBR600F, 1997 Kawasaki KLE500, 2001 Suzuki Bandit600S, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1990 Yamaha FJ1200, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1990&1989 Yamaha XT600Z Tenere, 1981 IT465, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1992 Kawasaki KDX200, 1996 Suzuki RM250, 2006 KTM250SX, 1995, 1997 & 2002 CR125R, 1996 CR250R, 1981 Suzuki PE175, 1989 Suzuki TS250X, 2011 BMW R1200GS, 2005 KTM EXC250 Racing, 2009 Yamaha XT125X, 1995 XRV750, 1990 CBR1000F, 2000 Yamaha TRX850
- Location: Finland
Re: My 3AJ rebuild
I got confirmed the TKR piston the shop had was a 95,50mm one so did order it. Finally feels like my luck is changeing, as out of 4 pistons the shop have had, in 3 different size, they had one left and in correct size!
And this is also the chepest option I have found! Good enough for Mezo, good enough for me!
And this is also the chepest option I have found! Good enough for Mezo, good enough for me!
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steveloomis
- Financial
- Posts: 230
- Joined: Sat Aug 10, 2013 5:03 pm
- What Bike or Bikes Do You Own?: 81 RD350LC w/84 RZ engine
85 RZ350
84 XT600
86 XT600 - Previously Owned Bikes: Honda 50's, 90's, Yamaha Twin 100, 68 DT1, '73 DT-3, 73 RD350, '77 DT250
- Location: Oklahoma, USA
Re: My 3AJ rebuild
You may be right about the oil passageway leaking into the cylinder. Usually if this seal fails, you have oil on the outside of the cylinder as well, quite messy. Good luck, please let us know how this turns out as others can learn from your difficulty.keny72 wrote:The low comperssion is a thing to deal whit, but the main reason for this heavy oil smoke has to be the leak from the oil channal, the amount of oil on top of the piston can´t just come from low compression. Also explains why the heavy oil smoke started same time as oil pressuer got to the top end. But yes, its a seal thing, the low compression is the costy thing. I have both my cylinder to work today as in same house there is a shop that has tools to messur the cylinders. I also borrowed home the compression tester from them. Hope to get them messured today if there is any hope for just a hone, or bore and new piston is whats needed. The piston I messured, was well inside tolerance, 94.950 mm I recall it was.
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keny72
- Three to collect
- Posts: 209
- Joined: Mon Oct 27, 2014 6:20 pm
- What Bike or Bikes Do You Own?: 1986 Honda VFR750Fx2, 1997 Honda Transalp 600, 1995 Honda SevenFifty, 2001 Kawa ZR7S, 1994 Kawa Zephyr 550, 1985 Yamaha FZ750
- Previously Owned Bikes: 2004 Suzuki DL650, 1990 Yamaha FZR600, 1986 Yamaha IT200S, 2006 WR250 Husky, 2010 Yamaha XT1200Z, 1984 Suzuki RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1985 Honda CBX750F, 1986 Honda VFR750F, 1987 Transalp 600,, 1992 Honda CBR600F, 1997 Kawasaki KLE500, 2001 Suzuki Bandit600S, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1990 Yamaha FJ1200, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1990&1989 Yamaha XT600Z Tenere, 1981 IT465, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1992 Kawasaki KDX200, 1996 Suzuki RM250, 2006 KTM250SX, 1995, 1997 & 2002 CR125R, 1996 CR250R, 1981 Suzuki PE175, 1989 Suzuki TS250X, 2011 BMW R1200GS, 2005 KTM EXC250 Racing, 2009 Yamaha XT125X, 1995 XRV750, 1990 CBR1000F, 2000 Yamaha TRX850
- Location: Finland
Re: My 3AJ rebuild
I think I found why the seal between cylinder as head was leaking. The cylinder to engine case has a seal alike, but seem they have a tiny length difference, and I did put them the wrong way around as I did not notice it...also there is a tiny little mark in the head just on piston side of the oil channal. So I might been rideing a low compression Tenere if I had put the seals the right way....steveloomis wrote:You may be right about the oil passageway leaking into the cylinder. Usually if this seal fails, you have oil on the outside of the cylinder as well, quite messy. Good luck, please let us know how this turns out as others can learn from your difficulty.
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GeoffD
- Founding Member
- Posts: 1700
- Joined: Sun Mar 27, 2011 7:19 pm
- What Bike or Bikes Do You Own?: 7 x 3AJ Teneres
1 x 1VJ Tenere
55W Tenere
XT660 Tenere 4MY
Honda CRF1000 Africa Twin
Honda Monkey Bike
Honda Dax - Previously Owned Bikes: Triumph Tiger Cub, Garelli Tiger Cross, Triumph Trophy 650, Honda CB250 G5, Honda CB750 K7, Yamaha DT175MX, Honda CB250 Super Dream, Yamaha RD350LC YPVS, Honda XR250, Yamaha XT600, Suzuki PE175, Yamaha YZ125, Yamaha RD500 V4, Yamaha XT600 Tenere (3AJ), Kawasaki ZX10, BMW R100GS PD, Honda XR600, Honda Varadero, Honda Africa Twin, Honda Transalp, Triumph Thunderbird, Ducati 900 Superlight FE, Ducati 750 SS, Honda Fireblade, Kawasaki Versys 650, Suzuki GT750 Kettle, Super Tenere
- Location: Tenereland, North East England.
Re: My 3AJ rebuild
keny72 wrote:I think I found why the seal between cylinder as head was leaking. The cylinder to engine case has a seal alike, but seem they have a tiny length difference, and I did put them the wrong way around as I did not notice it...also there is a tiny little mark in the head just on piston side of the oil channal. So I might been rideing a low compression Tenere if I had put the seals the right way....steveloomis wrote:You may be right about the oil passageway leaking into the cylinder. Usually if this seal fails, you have oil on the outside of the cylinder as well, quite messy. Good luck, please let us know how this turns out as others can learn from your difficulty.
The 2 seals between the head and barrel & barrel & cases are the same, there should be no difference in length.... same as the dowels....
The future is not what it used to be....
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keny72
- Three to collect
- Posts: 209
- Joined: Mon Oct 27, 2014 6:20 pm
- What Bike or Bikes Do You Own?: 1986 Honda VFR750Fx2, 1997 Honda Transalp 600, 1995 Honda SevenFifty, 2001 Kawa ZR7S, 1994 Kawa Zephyr 550, 1985 Yamaha FZ750
- Previously Owned Bikes: 2004 Suzuki DL650, 1990 Yamaha FZR600, 1986 Yamaha IT200S, 2006 WR250 Husky, 2010 Yamaha XT1200Z, 1984 Suzuki RG250W, 2000 Honda VFR800FI, 1991 Honda VFR750F, 1987 Honda VFR750F, 1985 Honda CBX750F, 1986 Honda VFR750F, 1987 Transalp 600,, 1992 Honda CBR600F, 1997 Kawasaki KLE500, 2001 Suzuki Bandit600S, 1987 Kawasaki GPZ500S, 1982 Suzuki GS500 Katana, 1990 Yamaha FJ1200, 1982 Yamaha RD125LC, 1983 Yamaha DT125LC, 1990&1989 Yamaha XT600Z Tenere, 1981 IT465, 1985 KTM125GS x3, 1987 KTM125GS, 1989 KTM250GS, 1996 KTM400SC, 1994 Kawasaki KX125, 1992 Kawasaki KDX200, 1996 Suzuki RM250, 2006 KTM250SX, 1995, 1997 & 2002 CR125R, 1996 CR250R, 1981 Suzuki PE175, 1989 Suzuki TS250X, 2011 BMW R1200GS, 2005 KTM EXC250 Racing, 2009 Yamaha XT125X, 1995 XRV750, 1990 CBR1000F, 2000 Yamaha TRX850
- Location: Finland
Re: My 3AJ rebuild
That was I also noticed whit the new Athena seal kit I did buy, both same length, but as the longer one from the Poland seal kit.......GeoffD wrote: The 2 seals between the head and barrel & barrel & cases are the same, there should be no difference in length.... same as the dowels....
Anyway, yesterday evening I did fire it up, smokeless for a while, then some minior that faded away after some time, had to be oil in the muffler that was burning. So all sorted an in place I did check all lights, and brake light was not working from the front brake, had the switch off, not the problem there. So this morning I had the tank off, and foult was corrotion in the plug of the wire to the switch. So midday today it did hapen, first ride. Was not truble free, as a km after left off I noticed the front brake was dragging, a km later I had to stop as front brake was on so much the wheel locked.... Problem was from me having the brake level off to get the switch for the brake light out. Seem the bolt for the brake level is uneven worn or not straight, and as it was some different located compare to when I had adjusted the level to piston adjustment, whit a to tight adjustment the pressure did not return properly and as brake heated up, as fluid when.... But that was fixed after a walk for a tool, the the short but good ride did continue. Did 32kms in total, bike did surprise me whit how fast the steering was as how stabile it is on twisty tarmac roads! And well after all its together now what same cylinder as before but new piston rings, the new piston will be for the Tenere #2
Later today I did add a top box for more ease to carry some stuff whit me
And a thing I still have to get is a new Chain / Sprocket kit, the chain is not that good, but did not get a new yet, but now that I know its (bike) working OK, I will!
