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New Forum Member - 1962 Cruiser 25TS

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New Forum Member - 1962 Cruiser 25TS

Post  chris7367 on Tue Dec 15, 2015 2:05 pm

Hello All

I have just joined the forum and will join the club next year when my current Bantam club membership expires.

I am just in the process of obtaining a 1962 Cruiser 80 with the dreaded 25T engine; in fact the bike is claimed to be fitted with a 25TS (Scrambler) motor and definitely has the ‘S’ model centre plug head. How much of the rest of the motor is still to ‘S’ spec remains yo be seen – my initial investigations on here and the web indicate that the S engine had a different barrel and piston to the standard engine, and externally this can be seen in that the S barrel doesn’t have cast in lugs to fit the carburettor cover, which is fitted on my bike.

I would be interested to hear from anyone with knowledge of the S motor and in particular whether the increased compression ratio is derived from the cylinder head or piston? Other owners of 25T Cruisers as well!

Anyway I am not a novice when it comes to these types of bike – my father and I restored the bones of a James L20 Captain back in the mid-eighties and I never would have thought I would buy another AMC engine machine, but I was too impatient to wait for a Villiers engined Falcon or a 2T Cruiser, and this bike has clearly had some time and money spent on it.

HAve attempted to upload a pic but not sure if its worked.

Fingers crossed that the engine has been properly sorted (it’s currently a non-runner…)

Regards
Chris
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chris7367

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25TS engine

Post  piston 197 on Tue Dec 15, 2015 4:53 pm

The prefix 25T is the road bike engine
25C is the trials engine
25S is the scrambles engine

TS was only used on the James L20S sports which had engine pre-fix 20TS

Think you will find it is 25S and not 25TS ?
JH
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piston 197
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Re: New Forum Member - 1962 Cruiser 25TS

Post  chris7367 on Tue Dec 15, 2015 7:48 pm

piston 197 wrote:The prefix 25T is the road bike engine
25C is the trials engine
25S is the scrambles engine

TS was only used on the James L20S sports which had engine pre-fix 20TS

Think you will find it is 25S and not 25TS ?
JH

Yes my error, thanks JH
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Re: New Forum Member - 1962 Cruiser 25TS

Post  peter@dunfordconstruction on Wed Dec 16, 2015 9:13 pm

Dear Chris, You seem unhappy with the scrambler engine obviously it is not the correct engine for the bike. i am looking for a scrambler engine for my scrambler 82 1959. If you ever think about selling it please let me know. I do have a part 25t engine crankcase barrel & head for a 25t if you decide to go the genuine way Peter 2012-12

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Re: New Forum Member - 1962 Cruiser 25TS

Post  chris7367 on Wed Dec 16, 2015 9:29 pm

peter@dunfordconstruction wrote:Dear Chris, You seem unhappy with the scrambler engine obviously it is not the correct engine for the bike. i am looking for a scrambler engine for my scrambler 82 1959.  If you ever think about selling it please let me know.  I do have a part 25t engine crankcase barrel & head for a 25t if you decide to go the genuine way   Peter 2012-12

Peter I am not saying I am unhappy with the S engine, its just an unknown quantity at the moment. Changing it for a standard engine is not out of the question and another member with a Scrambler has already asked the same question, so if I eventually go down that route Ill let you know, rgds Chris
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Re: New Forum Member - 1962 Cruiser 25TS

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