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MPC Trail 70

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  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
MPC Trail 70
Posted by Don Stauffer on Tuesday, August 27, 2019 4:12 PM

While I was waiting for a new kit to continue my T Speedster, I started the MPC Honda Trail 70 kit.

 

I dulled down the wheels and the chrome engine cover panels with Testors Glosscoat to make them look more like polished aluminum castings.  Since the remaining kit chrome parts indicate actual chromed steel on the bike I will not treat those pieces.

The engine is ready now for final assembly.  I have the first coat of paint (over Tamiya primer) on the main body piece and the rear fork.  That was Duplicolor auto lacquer.  I think I want a slightly darker red, so I will head to the stores to see what I can find that is a bit darker.

 

Don Stauffer in Minnesota

  • Member since
    February, 2003
  • From: East Bethel, MN
Posted by midnightprowler on Friday, August 30, 2019 11:54 AM

This should be cool.

Hi, I am Lee, I am a plastiholic.

Co. A, 682 Engineers, Ltchfield, MN, 1980-1986

1 Thessalonians 4:13-18 1 Corinthians 15:51-54

Ask me about Speedway Decals

  • Member since
    April, 2003
  • From: USA
Posted by keavdog on Friday, August 30, 2019 11:59 AM

That's cool Don.  I remeber riding those and the honda 50 as a kid.  How is the kit?

Thanks,

John

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Saturday, August 31, 2019 6:37 AM

keavdog

That's cool Don.  I remeber riding those and the honda 50 as a kid.  How is the kit?

 

 

I think the kit is quite nice.  There is some flash, and fit is not perfect in some areas, but certainly not a problem kit.  Got the body sides together, painted and decaled.  May get some pics today.  Many parts are chrome.  Sprue attachments are not always in out of the way areas, but thank god for Molotow chrome pens!  For parts that are polished aluminum on real bike I coat the chrome with dullcoat for a more authentic look.  Chain/sprocket assembly is quite good.

 

Don Stauffer in Minnesota

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Saturday, August 31, 2019 10:54 AM

The main body is painted and ready for decals now.  Engine is complete except for air cleaner.  I think I will touch up a bit more on fork detail painting.

Don Stauffer in Minnesota

  • Member since
    February, 2003
  • From: East Bethel, MN
Posted by midnightprowler on Saturday, August 31, 2019 6:03 PM

How big will this be?

Hi, I am Lee, I am a plastiholic.

Co. A, 682 Engineers, Ltchfield, MN, 1980-1986

1 Thessalonians 4:13-18 1 Corinthians 15:51-54

Ask me about Speedway Decals

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Monday, September 02, 2019 8:37 AM

midnightprowler

How big will this be?

 

Looks like it will be about six or seven inches in length.

 

Don Stauffer in Minnesota

  • Member since
    August, 2019
  • From: Central Oregon
Posted by HooYah Deep Sea on Monday, September 02, 2019 12:17 PM

Just curious, why is the cylinder blue? 

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Tuesday, September 03, 2019 8:51 AM

HooYah Deep Sea

Just curious, why is the cylinder blue? 

 

My attempt at weathering.  Steel often oxidizes when really hot to get a bluish coating. I may have overdone it and am thinking of dry brushing some more steel color back on the cylinder.  I do intend to weather the exhaust with some blue and red stains (burned chrome often takes on those colors).  It looks to me from pictures that the cylinders are an oil-finished steel or iron.

 

Don Stauffer in Minnesota

  • Member since
    August, 2019
  • From: Central Oregon
Posted by HooYah Deep Sea on Tuesday, September 03, 2019 12:40 PM

Those Honda cylinders were a rough cast steel that looked like cast black iron. They were black unless someone did an after-market on them.

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Wednesday, September 04, 2019 9:00 AM

Having big trouble with the air cleaner.  The engine is hung from the frame on two pins that go into holes in the frame, one on the crankcase and one on the air cleaner.  The mounting of the air cleaner to the cylinder head is really crappy, and can't get the air cleaner glued at the right angle to get both pins to fit.  Now I'll try engaging the pins with the air cleaner loose, and see if I can glue air cleaner to cylinder head while those pins are engaged.

 

Don Stauffer in Minnesota

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Wednesday, September 11, 2019 9:15 AM

Had another setback yesterday that surprised me.  I decided I should put the decals on the main body piece before I started putting the engine in place.

I put down some setting solution, then the decals.  As I moved the first one into position, it shattered.  Now, unfortunately I had not scanned it first.  But fortunately the decals include different Trail 70 logos- alternates, so at this point I do not need to make any homemade decals.

However, as I tried to remove pieces of the old decal, I found the paint was coming up too!  The fault seems to be in the setting solution. I checked to see I had setting solution rather than decal solvent- I had the right stuff, same brand I always use, but a new bottle.  It seems to be a defective bottle- really hot stuff, even hotter than solvaset.  Now I have to repaint that side of the body :-(

 

Don Stauffer in Minnesota

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Monday, September 16, 2019 4:36 PM

I did find it easier to mount the air cleaner and carb after the motor was mounted.  I decaled the body, glosscoated it, and then installed the engine as per plan.  Even so, I found I needed to add a short length of plastic tubing to the aircleaner, where it fastens to the carburetor.

Don Stauffer in Minnesota

  • Member since
    February, 2003
  • From: East Bethel, MN
Posted by midnightprowler on Monday, September 16, 2019 5:12 PM

Looking good.

Hi, I am Lee, I am a plastiholic.

Co. A, 682 Engineers, Ltchfield, MN, 1980-1986

1 Thessalonians 4:13-18 1 Corinthians 15:51-54

Ask me about Speedway Decals

  • Member since
    August, 2019
  • From: Central Oregon
Posted by HooYah Deep Sea on Monday, September 16, 2019 6:13 PM

Paint the extension flat black. It's the rubber sleeve connection between the air cleaner and the carb. Some installations used black plastic clamps to hold those parts together, other times I've seen regular hose clamps. So, in your application, either can work.

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Tuesday, September 17, 2019 9:23 AM

I painted it semi-gloss.  To me rubber often is not totally flat.  However, that extension does not look that different than the gloss of the filter, so I may indeed repaint that area with flat.

Another painting problem.  The bodine cables (like for brakes and throttle) are black vinyl tubing.  However, it looks like on the real bike they are sort of a metallic gray.  I have never been able to paint that soft vinyl.  The paint never hardens.  I tried a marker, that is not doing it either.

 

Don Stauffer in Minnesota

  • Member since
    December, 2018
Posted by Ted4321 on Tuesday, September 17, 2019 10:39 AM

Don 

Nice build so far.  I built the Rupp Roadster a few months back which is similar to your bike.  

The vinyl was a bit annoying, mainly the tires. After finally getting them glued I carefully sanded to make them look used/dusty. I roughed up the handle grips a bit too. I didn't do anything to the brake or throttle cables though.  Looking forward to what you come up with.  

Looks good. 

T e d

  • Member since
    August, 2019
  • From: Central Oregon
Posted by HooYah Deep Sea on Tuesday, September 17, 2019 2:04 PM

Most control cables, on most motorcycles, are black. Some companies or individuals replace them with the 'armored' style which apear as a semi gloss aluminum. As the handlebars on the Trail 70 and Trail 50 were built to be able to fold down, Honda probably put in the armored cables to minimize cable kink issues. I have seen these scoots with both applications equally. Ball back in your court.

  • Member since
    April, 2003
  • From: USA
Posted by keavdog on Thursday, September 19, 2019 10:53 PM

That's looking great Don!  Love the bright work.

Thanks,

John

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