Author Topic: Terrot MT 1, 100cc 2 stroke: non-starter!  (Read 158115 times)

Offline iansoady

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #240 on: May 09, 2018, 09:55:36 AM »
I think you can still get easy-start in the UK. http://www.halfords.com/motoring/engine-oils-fluids/fuel-oil-additives/bradex-easy-start-300ml

It might help to narrow down your problem although you do seem to have addressed most things......
Ian
1952 Norton ES2
1986 Honda XBR500
1958-ish Tre-Greeves

Offline mini-me

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #241 on: May 09, 2018, 10:54:27 AM »
Spray a whole can of easy start into the carb, stuff carb with petrol soaked rag, light rag, retire to safe distance.
Sorted.

Offline TGR90B

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #242 on: May 09, 2018, 11:25:33 AM »
 ;D ;D
Getting grumpy, but not as grumpy as mini-me.

Offline mini-me

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #243 on: May 09, 2018, 06:02:12 PM »
Saga is getting boring now.

https://youtu.be/Px-FRo1K3DE


Offline Terrotmt1

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #244 on: May 09, 2018, 10:55:17 PM »
Yep, boring is about right.
I've tried a fresh can of easy start some time back, did nothing at all.

I've walked away from it for a few days just to have a break.
On this and another site nobody has spotted or suggested something that changes things, and I have a lot of clever and experienced people helping here, all to no avail.

It is very hard to think of anything I've missed, it is a 2 stroke simple thing yet it has defeated me so far.

I can only change the timing, and the carb.
It has run a few times, never started when I wanted it to (ie turn the fuel on, a few kicks, it fires and runs).


If it irritates some of you imagine how it is for me. Thank goodness it is not my main interest and I need the bike for the summer runs etc.
« Last Edit: May 09, 2018, 10:57:24 PM by Terrotmt1 »

Offline TGR90B

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #245 on: May 09, 2018, 11:39:57 PM »
Have you tried a battery, coil & condenser; wired through the existing points? It was suggested some time ago, before you tore the engine apart again.
Getting grumpy, but not as grumpy as mini-me.

Offline mini-me

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #246 on: May 10, 2018, 09:03:13 AM »
I can only emphasise that you can alter the ignition timing up an down till you are blue in the face, but a couple mm's either way won't make a blind bit of difference.

These are not exactly sophisticated engines.

It's my confirmed belief you are barking up a whole forest of wrong trees.
Don't ask me what tree is left to bark up.

I suspect the whole bloody thing is dud.


Offline Terrotmt1

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #247 on: May 10, 2018, 03:30:19 PM »
Yes, did the battery 'by-pass' exercise some 1000 pages ago, but that did nothing at all.

I feel I have no real options left besides sell as a shop display, give it to the Nat Motorcycle Museum, give it away, skip it in that order.
Tempted to give the magneto back to Villiers Services for another looking at, but I'm ploughing the same field again.

If you lot don't know then I have no chance, I'm used to Porsche 911 engines, much simpler to get right.

I think a Villiers 4E engine would fit? :)

Offline Rex

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #248 on: May 10, 2018, 03:40:31 PM »
All joking aside, that would be a good move, or be really outrageous and fit something like a CD200 engine... ;)

Offline iansoady

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #249 on: May 10, 2018, 05:05:19 PM »
I have to admire your persistence.

The NMM won't have it as they're British only.

Shop display sounds favourite. One selling beard wax and tattoo enhancing cream perhaps?
Ian
1952 Norton ES2
1986 Honda XBR500
1958-ish Tre-Greeves

Offline TGR90B

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #250 on: May 10, 2018, 06:55:36 PM »
You obviously get about a bit Ian.
Getting grumpy, but not as grumpy as mini-me.

Offline mini-me

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #251 on: May 10, 2018, 07:40:06 PM »
Porsche?

I wouldn't have any German car as a gift... VW and its emission lies

Mercs rust, my local scrappy is loaded with 10year old Mercs of all kinds.Mostly electrics to expensive to fix.

Audi, too expensive to repair, loved by drug dealers
BMW, the kebab shop owners favourite, a total con, seen the latest recall? I lost count of the number I seen on the back of breakdown trucks.

around 1975 I went o a BMW course at Chiswick HQ, that convinced me to never buy one.

Offline Terrotmt1

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #252 on: May 10, 2018, 09:05:23 PM »
Don't hold back! ;)
Worse still, I have 3 Germans and 2 Skodas!

It nearly started 6 times this afternoon....
Bloody thing.

Offline cardan

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #253 on: May 11, 2018, 01:35:32 AM »
Hi Graham,

Terrot built tens of thousands of bikes, so let's assume the little bike worked fine when it was new, and worked OK until it stopped working. Most likely it wore out. Probably at the end the owner got sick of it not starting on the kick-starter and having to push it down the hill and jump on when it fired.

The idea of restoration is to measure and check everything, replace what needs replacing and fix what needs fixing, then enjoy the bike as it was when it was new. If you want the bike to run, you'll have to do these things - sadly no amount of forum chat will make it run if the thing is worn out. If the man at the engine shop tells you the bore is worn out, it's probably worn out. New rings won't help, because they are round, and the wear in two-stroke bore is not. How's the big end? The little end? Does it have any compression? If the engine is worn out, it will be very hard to start.

I'd be more than happy to have a look at it for you, but I suspect I'm on the other side of the planet. Perhaps you can hook up with someone experienced who lives locally? In the meantime, if you want it to run take the advice above and spin it over with a drill (or whatever), or just push it down a big hill. It will run, with the rattle and clank of a worn-out two stroke.

Cheers

Leon
« Last Edit: May 11, 2018, 01:37:10 AM by cardan »

Offline Terrotmt1

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Re: Terrot MT 1, 100cc 2 stroke: non-starter!
« Reply #254 on: May 11, 2018, 08:09:54 AM »
Thank you Leon.
I suspect you are right.
I'll bite the bullet and get a new 50mm NOS piston and have the bore machined to suit.
Graham.
I'm in Wolverhampton, England.