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Hi all, I’ll start by introducing myself I have been reading through your threads and even though I’m a member of another forum this one seems to be the most informative :wave: I have, as you can see from my aviator, a r33 gtst S2. I’m in the UK and have a slight problem maybe you could be kind enough to point me in the right direction.

The question is…. My mota has, since I bought it 2 months ago, “a crunch” changing from 1st to 2nd mainly at high revs and when cold, sometimes it’s a bit of a struggle to get it in.

I thought that the clutch maybe on its way out but it only does it from 1st > 2nd

Any advice would be appreciated

Shaun. :)

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I think it might be your syncros on 1st and 2nd gear, reason been they are the most gears been used, i dont think it matters that much, it depends how bad they are, try using redline oil might help it abit, or you could get them changed, it might cost you abit tho.

"high revs" and "cold" don't really go well together. The synchros are on the way out, and the more you combine "high revs" and "cold", the faster they will degenerate.

I have a similar problem going from 3rd to forth and 5th to forth at high speed and RPM.I think its my clutch? Also the take up point is really high.????

"high revs" and "cold" don't really go well together. The synchros are on the way out, and the more you combine "high revs" and "cold", the faster they will degenerate.

Hi this may help, and i tend not to rev her hard when cold ;-)

When Cold

Crunch at any rev range from 1>2

When Warm

Crunch at high revs 1>2

no crunch when at low revs

Edited by Spinky

Sounds like synchros to me from that clarification.

Remember that it is a often used gate AND it is the largest relative speed difference in the gearbox. (Largest rev difference from 1st to 2nd) so they work hard. Shift slow and feel the gate "open" when you change. No dragging from the lights for you anymore :laugh:

Throw some new oil in and check the clutch is releasing fully.

Edited by simpletool

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