Create a thread about your bike.
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
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Contact:
Post
by toratora » Fri May 12, 2017 8:39 pm
hdvp wrote:Installation guide to the Stage6 says tighten to 25NM—seems like a lot.
I only tighten the Airsal 80cc to 14NM.....
Malossi MHR-R manual says tighten to 1.2 kg (12NM)
Yeah it does sound like a lot!
It may be because they are employing a different type of head gasket. The other heads employ the "rubber" o-ring gaskets, but the Stage6 Big Racing employs the aluminum gasket. Probably a good idea to get extra ones as they may not be as reusable as the o-rings!
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Sat May 13, 2017 6:39 pm
My goodness this is a shit ton of work!
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Sun May 14, 2017 10:39 pm
Man it takes a lot of effort to remove the stock paint. Almost there, but there's still a bunch of paint left to remove.
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Mon May 15, 2017 6:39 pm
The radiator and new guard showed up today. The Black bike is coming together, again.
Blinkers and mirrors and what not are for some of the other bikes.
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Tue May 16, 2017 6:39 pm
hdvp; wrote:From the RS4 50 workshop manual: Head retainer nut M7 4 21 Nm (15.49 lb ft)
That's somewhat reassuring, eh?
I just dropped the bits off at the powder coaters. I was so excited that I forgot to take photos! lolz. I'll just have to take some when the parts come back.

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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Tue May 16, 2017 10:39 pm
I thought I'd treat myself to some new shiny, and well nope. Brand new radiator for the Black bike, and it's already not so new—straight out of the box.
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Mon May 22, 2017 12:39 pm
Some fun stuff showed up today. Not sure when I'll be able to use it...
The Chinese Ti case bolts showed up, and the order from Kurvey Girl showed up too. From KG I got the valve stems like what they use on the Ducati super bikes. It's the same brand, but sized to the Derbi wheels.
Kurvey had T-shirts on sale so I picked one up. Hey they are black!
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Mon May 22, 2017 9:39 pm
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Tue May 23, 2017 8:39 pm
And the wheel bearings showed up today.
Soon I will be putting it all together again.
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toratora
- Posts: 3162
- Joined: Wed Oct 11, 2017 1:05 am
- Location: San Francisco
- Replica: Derbi GPR
Cagiva Mito
Cobra CX65
Aprilia RS50
- x 1768
- x 1977
-
Contact:
Post
by toratora » Thu May 25, 2017 5:39 pm
It probably wont be here until next week, but there's a nice little Mychron on the way...
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