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36y to 3tx question

Started by bartha32, March 13, 2018, 06:32:43 AM

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1100 convert to 1200

yes
1 (50%)
no
1 (50%)

Total Members Voted: 2

bartha32

Hi everybody. I have a question. My 36y crankshafts, cylinders, cylinder heads and pistons, and the con rods and gearbox I want to replace 36y from 3tx. Does this work?(Google translater.Sorry.)

fj1289

I think the 1100 engine cases have to be bored for the 1200 cylinders.  Randy or Robert will be able to verify that for you. 

All the other parents are basically the same between models. 

Urban_Legend

Will a complete early 1200 (1tx or 3CV - not rubber mounted) motor transfer ok into an 100 frame?
Mark
My Baby (Sparkles)
84 FJ1100/1200 motor
92 FJ 1200 - Project bike. Finished and sold.
84 FJ1100 - Project bike.

Troyskie

G'day Mark, yep the early 1200 and 1100 frames are identical. Plug and play I think.
1984 FJ1100 Ms Effie brand new :)
1984 FJ1100 Pearlie, stock as.
1985 FJ1100 Mr Effie 647,000K and still running hard.
1985 FJ1200 'Yummy' takes a licking & keeps on ticking
2013 Trumpy Tiger 800, let's do another lap of Oz

After all is said and done, more is said than done :)

oldktmdude

Quote from: fj1289 on March 13, 2018, 11:07:52 PM
I think the 1100 engine cases have to be bored for the 1200 cylinders.  Randy or Robert will be able to verify that for you. 
 
The 1100 case does not have to be bored to accept the 1200 cylinders. They will bolt straight on. Once going to bigger sleeves i.e. 1250cc, clearance must be made in the 1100 case.
   Regards, Pete. 
1985 FJ1100 x2 (1 sold)
2009 TDM 900
1980 Kawasaki Z1R Mk11 (sold and still regretting it)
1979 Kawasaki Z650 (sold)
1985 Suzuki GSXR 400 x2 (next project)
2001 KTM 520 exc (sold)
2004 GasGas Ec300
1981 Honda CB 900 F (sold)
1989 Kawasaki GPX 600 Adventure

fj1289

Thanks Pete!   :drinks:

That's some info I'll be using in the near future

bartha32

These parts are for me. The 1100 parts are bad. I hope to build a working engine. I'll post it here when it's done.Thank you for your answers

bartha32

Hello.
Thanks for the help I received.
I finished the construction in spring 2019.
Since then I have done about 7000 miles with no problems with the engine. There were some technical problems caused by old parts but the engine is technically fine.
The components used in the engine are
fj1100 engine case
fj1200 3xw crankshaft,
con rod,,clutch,cylinder,cylinder head,pistons,
gearbox,
New piston ring set,all bearings,o ring and gasket.New timing chain and all chain guides,new alternator chain.
Fjr1300 front brake,fj1200/3xw wheels,front fork,
fj1200/1992  switches,
steel clutch line.
Valves sanded,valve clearances adjusted.
Fuel tap rebuilt,fixed with wire.
Relay installed in alternator wiring.
Fuel tank is surprisingly not rusty. It is always full and I do not use e10 fuel.
Thanks to those who helped me and to the rpm team from whom I ordered many parts and they handled the delivery perfectly.

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