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Makotosun
RT1 1970 gearbox questions please
- Tinker man
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RT1 1970 gearbox questions please was created by Tinker man
Good day all,
most here will be aware of my RT1 that is a gift that keeps on giving…. Mostly bad news.
following on from my clutch/kickstart and tachometer opportunities recently discovered I am reaching the conclusion I will need to remove the engine and get into the gearbox. When I first picked up the bike it had no cover on the gear lever side of the bike or lever attached. The bike was cheap and matching numbers and I was assured there were no gearbox issues… right. Being smitten with the idea of an early RT 360 I nodded enthusiastically. Well…..
finally decided to try and select gears after clutch, kick start and idle gears. Here are my observations.
the gear selection by the change levers on the dowels seem a bit hit and miss but may need better set up or potentially a new spring? but the bigger issue is that I seem to be able to select “5” gears but neutral seems to be between where I think it’s selecting 3rd and 4th? Has it been apart and thrown back together incorrectly? I suspect so…. Is this a known issue ( I did search here and elsewhere but no luck). ?
Could it have something to do with the neutral stopper? I did remove this accidentally when draining the oil… I know, I. Know. Could the cam stopper have gone back in the wrong place when I refitted it?
words of wisdom welcome.
other than that I think I am going to have to remove the engine and split the cases. That should be fun as I have never done that before.
i always seem to want something I realise that, but I can only ask.
thanks ever so much, Ian.
most here will be aware of my RT1 that is a gift that keeps on giving…. Mostly bad news.
following on from my clutch/kickstart and tachometer opportunities recently discovered I am reaching the conclusion I will need to remove the engine and get into the gearbox. When I first picked up the bike it had no cover on the gear lever side of the bike or lever attached. The bike was cheap and matching numbers and I was assured there were no gearbox issues… right. Being smitten with the idea of an early RT 360 I nodded enthusiastically. Well…..
finally decided to try and select gears after clutch, kick start and idle gears. Here are my observations.
the gear selection by the change levers on the dowels seem a bit hit and miss but may need better set up or potentially a new spring? but the bigger issue is that I seem to be able to select “5” gears but neutral seems to be between where I think it’s selecting 3rd and 4th? Has it been apart and thrown back together incorrectly? I suspect so…. Is this a known issue ( I did search here and elsewhere but no luck). ?
Could it have something to do with the neutral stopper? I did remove this accidentally when draining the oil… I know, I. Know. Could the cam stopper have gone back in the wrong place when I refitted it?
words of wisdom welcome.
other than that I think I am going to have to remove the engine and split the cases. That should be fun as I have never done that before.
i always seem to want something I realise that, but I can only ask.
thanks ever so much, Ian.
I love taking stuff to bits - putting back together is another thing altogether.
14 Mar 2026 04:58
#1
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- MarkT
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Replied by MarkT on topic RT1 1970 gearbox questions please
They don't shift well "on the bench". Shafts must be spinning. Very easy to imagine a problem when none exists.
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
The following user(s) Liked this Post: RT325
14 Mar 2026 07:40
#2
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- Tinker man
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Replied by Tinker man on topic RT1 1970 gearbox questions please
I like the sound of that MarkT
Perhaps I will reassemble when all parts here and see what happens after that. Just check the lever adjustments.
If I have to strip it down again at least I know it will come apart easier.
Thanks for the response
Perhaps I will reassemble when all parts here and see what happens after that. Just check the lever adjustments.
If I have to strip it down again at least I know it will come apart easier.
Thanks for the response
I love taking stuff to bits - putting back together is another thing altogether.
14 Mar 2026 08:07
#3
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- Tinker man
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Replied by Tinker man on topic RT1 1970 gearbox questions please
Following the Markt message of hope I took another look today.
Using the shifter/gear lever I went all the way down the box to what should be 1st gear. I can see the levers turning the shaft into the box. One click up should be neutral but checking by turning the chain sprocket on the other side of the engine it is clearly still engaged. I see the shaft turning each time I pull the gear/shifter lever up and using the same check the sprocket is still engaged until I get to a “neutral” between 3rd and 4th. When the sprocket turns freely.
Feels wrong and I don’t see how it’s possible and wonder if this is even possible by assembling incorrectly.
If I rebuild the clutch side to get the shafts spinning then selecting neutral to start the bike isn’t possible whilst I can’t find neutral where it should be.
Does that make any sense? Maybe I should try to do a video….
Thanks, ian
Using the shifter/gear lever I went all the way down the box to what should be 1st gear. I can see the levers turning the shaft into the box. One click up should be neutral but checking by turning the chain sprocket on the other side of the engine it is clearly still engaged. I see the shaft turning each time I pull the gear/shifter lever up and using the same check the sprocket is still engaged until I get to a “neutral” between 3rd and 4th. When the sprocket turns freely.
Feels wrong and I don’t see how it’s possible and wonder if this is even possible by assembling incorrectly.
If I rebuild the clutch side to get the shafts spinning then selecting neutral to start the bike isn’t possible whilst I can’t find neutral where it should be.
Does that make any sense? Maybe I should try to do a video….
Thanks, ian
I love taking stuff to bits - putting back together is another thing altogether.
15 Mar 2026 03:55
#4
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