hi from kelantan state of malaysia

[renos-a10]

Hi Armi ,
 Wellcome to the forum.Here you can find everything you need about the bikes !!

[amri]

Thanks renos.

Dear muskrat.... Sir....here is the picture.

[muskrat]

G'day Amri,
               it's not a ZB31 frame so I would say it's been re-stamped. Have a close look at the spot where my number is. It may have been filled over with putty. What does your registration papers say? Bit of a mystery, with your engine numbers changed as well!
Cheers

[renos-a10]

Hi Armi ,

 I have the same opinion with Muskrat.Look like re-stamped.

[amri]

Thanks renos for your opinion...

Muskrat..... sir the picture that i sent to you is the same spot with yours previouse picture.... Regestration paper stated current number.... so that meant the engine is short strok A7 conferm. thanhs a lot sir....

[duTch]

Hiya Rami,
              If I didn't already say, I like the style of your bike, it would be good on some of those roads you have there.

  Maybe previous owner decided he wanted a 'B31' and stamped it so- 'I hereby pronounce thee, a B31' ? 

Isn't the timing cover for a Long stroke more flat/horizontal  on the Genny chain cover section??

 Catch you soon, duTch

[muskrat]

G'day Amri, looks like a short stroke A7 of 1954 or later (big fin).
 Can I come over and register a few dodgy ones too. 
Dutch, the LS has a screw at the bottom of the "Y"
Cheers

[amri]

Thanks a lot ducth... always spell rami......not amri.

Hahahahaha.... i dont know what do you meant by saying regester a few dodgy.... anyway thanks. The coclusion is engine short strok A7 1954 n frame is long stroke a7 1949.

[muskrat]

Dodgy means if I brought over a Honda XR frame with a Yamaha 1000 motor and called it a Bultaco persang it'd get passed?
Not 100% on the frame age but the front end would have to be mid 40's.
Dutch pic of LS "Y" attached.
Cheers

[amri]

Hahahha umph... i dont think so easy to dodgy. im so lucky when i bought this bike all registration prosedure done well... i think. As long as my bike is legal n dont belong to some one.... its quiet ok to me.
Thank a lot mr. muskar. your knowledge so helpfull.

[duTch]

Amri,(and any other plunger/rigid owners), do you have a date stamped into crankcase/chaincase- as per photos(blurry, but give the idea)?

Muskrat, Thanks for the pic, it's a definitive ID point, but still doesn't answer my query ie ; is the cover a slightly different shape, in that, is the angle between 'Idler-genny axis/Idler-Maggie axis more obtuse, making Idler-genny axis/crank-idler axis more acute(smaller radius underside of cover- front of 'piled arms') ie different gasket?
 It's really not important,but just am curious as years ago I saw some and assumed to be A7 before I knew about long/short stroke, and it may just be an optical illusion??



 Cheeers duTch