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post #1 of 19 (permalink) Old 2 Weeks Ago Thread Starter
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New Here (GRC-RSR)

Hello folks, new guy here. I just picked up an RSR from a local buyer.

It needs some work, but I figured I'm up for the challenge. Part identification has been harder than I thought.

So far ive taken it down a bit and found that it needs a new gas tank, new pull-start, right peg, and carburetor gaskets?

I am 95% confident that the pull start assembly for this is here? Can anyone confirm?

I'll come back here with progress~
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post #2 of 19 (permalink) Old 2 Weeks Ago
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Re: New Here (GRC-RSR)

Quote:
Originally Posted by Eunos View Post
Hello folks, new guy here. I just picked up an RSR from a local buyer.

It needs some work, but I figured I'm up for the challenge. Part identification has been harder than I thought.

So far ive taken it down a bit and found that it needs a new gas tank, new pull-start, right peg, and carburetor gaskets?

I am 95% confident that the pull start assembly for this is here? Can anyone confirm?

I'll come back here with progress~
Welcome to the site...You do appear to have a genuine GRC RSR.....Try midsouth minimoto for parts ID's.....

You can also PM a member named "Chrisi" and he might be able to help you out alot faster than trying to find those parts in the states these days.....

Good Luck

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Last edited by CAM2; 2 Weeks Ago at 03:20 PM.
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post #3 of 19 (permalink) Old 2 Weeks Ago
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Quote:
Originally Posted by Eunos View Post
Hello folks, new guy here. I just picked up an RSR from a local buyer.

It needs some work, but I figured I'm up for the challenge. Part identification has been harder than I thought.

So far ive taken it down a bit and found that it needs a new gas tank, new pull-start, right peg, and carburetor gaskets?

I am 95% confident that the pull start assembly for this is here? Can anyone confirm?

I'll come back here with progress~
Nice looking GRC, the part you showed is the right one, in the Pic I also miss the springs and start lever on the flywheel.

Get your kick with 2 stroke mix
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post #4 of 19 (permalink) Old 2 Weeks Ago Thread Starter
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Re: New Here (GRC-RSR)

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Originally Posted by Chrisi View Post
Nice looking GRC, the part you showed is the right one, in the Pic I also miss the springs and start lever on the flywheel.
Good eye. I actually removed them so they don't get lost.

Thanks for the welcome guys! I hope to get this thing going soon. How long are the typical wait times from minimoto? If long...i might reach out to you Chrisi

Also- the engine says 316. is this the 6hp engine?
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post #5 of 19 (permalink) Old 2 Weeks Ago
Re: New Here (GRC-RSR)

I have a GRC-GP with 40cc BZM hot rod engine I built. My avatar bike. Is that a Polini engine, hard to see from the photo.

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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post #6 of 19 (permalink) Old 2 Weeks Ago
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Quote:
Originally Posted by Eunos View Post
Quote:
Originally Posted by Chrisi View Post
Nice looking GRC, the part you showed is the right one, in the Pic I also miss the springs and start lever on the flywheel.
Good eye. I actually removed them so they don't get lost.

Thanks for the welcome guys! I hope to get this thing going soon. How long are the typical wait times from minimoto? If long...i might reach out to you Chrisi

Also- the engine says 316. is this the 6hp engine?
Depending on the crankhous intake, flat intake 4,2hp, intake with an angel is 6,2hp, code 316 should be a 3 port cylinder.

Get your kick with 2 stroke mix
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post #7 of 19 (permalink) Old 2 Weeks Ago
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i dont know is I sent an email to Mid-South mini moto to see if they're even still active

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post #8 of 19 (permalink) Old 1 Week Ago
Re: New Here (GRC-RSR)

I tried to email Stoney a few weeks back, no luck, and he knows me. His phone off the website is 1-541-589-2795, I will try and call him cause I need parts too.

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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post #9 of 19 (permalink) Old 1 Week Ago
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looks like www.midsouthminimoto.com is not doing business as of right now that doesn't mean that he's out of business. Could be on vacation or dealing with other life matters.

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post #10 of 19 (permalink) Old 1 Week Ago Thread Starter
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Re: New Here (GRC-RSR)

Does anyone know the fuel line size? ID?
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Quote:
Originally Posted by Eunos View Post
Does anyone know the fuel line size? ID?
ID 5mm, OD 9mm.

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Re: New Here (GRC-RSR)

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Originally Posted by Eunos View Post
Does anyone know the fuel line size? ID?
1/4" ID x 5/16" OD

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post #13 of 19 (permalink) Old 1 Week Ago Thread Starter
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Re: New Here (GRC-RSR)

You guys really rock - thanks for the answers as im trying to get this thing rebuilt.

Can you guys confirm plug sizes for Polini?

NGK (3830) BR10EG
NGK (3230) BR9EG

These seem a bit long, don't feel right.
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Re: New Here (GRC-RSR)

Quote:
Originally Posted by Eunos View Post
You guys really rock - thanks for the answers as im trying to get this thing rebuilt.

Can you guys confirm plug sizes for Polini?

NGK (3830) BR10EG
NGK (3230) BR9EG

These seem a bit long, don't feel right.
I use NGK B6HS and B9ES for the 6.2hp Polini cases..............

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Last edited by CAM2; 1 Week Ago at 09:07 PM.
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Polini explosi shows NGK BR9EG or BR10EG and Champion N2C or C55

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Re: New Here (GRC-RSR)

Polini spark plug is a little shorter than my C1 or BZM engines.

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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Re: New Here (GRC-RSR)

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Originally Posted by Chrisi View Post
Polini explosi shows NGK BR9EG or BR10EG and Champion N2C or C55

Yep you are correct and FYI if you cross referrence what the Champion N2C crosses over to in NGK and you'll see that the N2C has a broad range of #'s [151]that cross references with that single sparkplug and NGK B9ES is one of them.......

As far as the other plug [C55] I looked in my book and I use the NGK B6HS in my 910 Polini with 4.2 cases….

For the C55 cross Ive used the NGK B10EP from whats written dwn.....….I used to get those for a buck each at my local autoparts store...LOL

https://www.sparkplug-crossreference...t/CHAMP_PN/N2C

The R after B in BR10EG means its a resistor sparkplug...…….

Unless youre running sensitive equipment on a racing machine its moot to use a resistor sparkplug...…...

If you are looking for performance you want to use non-resistor spark plugs.

A resistor is exactly what the word implies. When the spark crosses the point of resistance some of the spark energy is lost.

Non-resistor spark plugs deliver a more powerful spark.

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Last edited by CAM2; 5 Days Ago at 09:27 AM.
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post #18 of 19 (permalink) Old 4 Days Ago Thread Starter
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Re: New Here (GRC-RSR)

73036721_2443865949203830_7566024722324914176_n.jpg

74230312_1145775898948740_3140757683456442368_n.jpg

72640171_465691377367547_6620829435543158784_n.jpg

Plastic welded the cracks in the tank then hit it with some marine epoxy.

Rebuilt the carb and took a look in the cylinder. It's ready to try to start.. just waiting on the pull start to come in.. I might try a drill start to see if it will run.
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Re: New Here (GRC-RSR)

I would not try to start it with a drill, to many things can go wrong and Euro parts are expensive, $125 for a flywheel etc.

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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