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Messages - Greaser Greg

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Haus of Projects / Re: 1971 R5 not a restoration
« on: July 06, 2021, 09:58:58 PM »
The one time I did any kind of porting, it was a matter of measuring the dimensions of the ports and distance from top of cylinder.  Both sides should be the same with identical angles on the edges for each set of holes.  Post the numbers and someone else here will know what they mean regarding what pipes they'd be good for and where to start with jetting. :twocents:

Turning Wrenches / spark plug heat range
« on: June 14, 2021, 09:30:57 PM »
How does one know when to change from B8HS to B9HS on an R5?  Was running great with stock heads and Spec II Classics on 32.5 pilot, third clip on stock needle and 170 main. Got the heads worked, upped jets to 175 and went up to b9 plug and it's not as fast, with less noticeable power band at 7k. Plugs are dark.  Doesn't a flatter squish band need more gas?

That's the one I had. :taz:  My kids probably lost it in the woods playing space man. :bang:

Seems like the old trusty Craftsman timing light has gone on an adventure without me. :umm:  What are the brands you've bought lately that work for longer than the warranty?

Turning Wrenches / Re: Jetting this Bike
« on: June 03, 2021, 02:11:28 PM »
A couple of weeks ago I taught  my twelve year old daughter to do it for me, cuz, well, it got old. :dawg:

Nice place he's got there.  It'd be a shame if something were to happen to it. :devil: :whistle: :dawg:

Turning Wrenches / Re: One side runs, then the other!
« on: May 29, 2021, 12:19:12 PM »
Here's an update on the latest decaf adventures.
Left carb had cracks in the choke plunger cap and the external spring didn't hold the choke all the way off, so the air from the cracks let the left side run but the straight extra fuel on the right side was a no go.  That and the extra wire length of the thinner than stock wire in the harness, with old main key switch and connecters resulting in to much voltage drop were just the icing? on the cake.  Once the coils got a direct wire from the battery with thicker wires and new connectors throughout the ignition system the motor started with barely a full kick and was much more crisp. 
It ran great on the 170 mains that were installed when I bought the bike, but instead of riding it to do a plug chop I decided to go ahead and go bigger and work my way down, just to be safe.  Local shop had some 205 195 and 190 so I started with those. Way too big. Ordered some genuine jets from JetsRus; 175,180, 185. Plugs fouled after the first two runs down to 175 before I could get a reliable butt dyno reading, and the right plug threads got funky.  So pulled the heads and sent them to get squish band angles changed.  I had another head laying around with good threads so skipped the repair on the stripped one for now.  I'm glad I got the bad one off before the metal from the threads went into the engine. Big nasty slivers. Cylinders are basic balance port job done with John Ritter at his shop, stock heads, and Spec II Classics. 

eBay/Craigslist watch / Re: Rd400 Green and Clean
« on: May 25, 2021, 07:14:30 PM »
$5500 was the price i remember :umm: :twocents:

Turning Wrenches / Re: Effects of mis-matched heads
« on: May 24, 2021, 10:55:42 PM »
Pulled the other head to compare; both stock I think because of the rough texture and steep squish angle.  Also look the same as two other heads I have. 
Two heads in a box on their way to Ed Toomey Designs today! :nana: Might as well get fancy while they're off. :whoop: :celebrate: :bacon:

Turning Wrenches / Re: Effects of mis-matched heads
« on: May 23, 2021, 10:10:09 PM »
I get that and will. 
Anybody care to elaborate with the details of why?  Will it just run crappy i.e. not balanced, because of the different squish bands and compression?  (I'm lonely and don't watch tv.)

Turning Wrenches / Re: Well... Crap. Wiring confusion.
« on: May 23, 2021, 10:05:27 PM »
I just did all the wires and bypassed the ignition switch with a kill switch and ditched the blinkers. Wasn't that hard with a good crimper and the bullet connector kit and I reused some of the wires and plugs from a janky India harness.  Minimized voltage drop and added a fuse for the lights circuit.  Started on half a kick! I thought about a used harness, but 50 years of oxidation? I ain't got time fa dat! :twocents:

Turning Wrenches / Re: Rick’s Reg/Rec
« on: May 23, 2021, 09:56:05 PM »

Turning Wrenches / Effects of mis-matched heads
« on: May 23, 2021, 09:30:18 AM »
  I don't remember if I put the polished and cc'd heads on this bike I'm working on, or the other one, and a plug hole has stripped while cleaning and checking plugs.  The stripped head looks like some other spares I have in that there are small casting imperfections and the dome is not very shiny.
  What have people noticed about running a set of heads on an R5 where one head of a matched set needs a repair, and is replaced with one that is unchanged from its factory condition?   Stuff like how it runs and if stuff will go wrong?
 I get that the compression and squish bands will be different.  Will there be required jetting variance?  What else?   
If the volume is close to the same, is that ok?  How much difference in volume is acceptable?

 Basically, I'm hoping for some insight into what can happen if an engine is run, and bike is ridden with two heads that are of different internal volume and combustion characteristics.  Asking for  a friend. :whistle:
 Not a race bike, but I will flog it 

Turning Wrenches / Re: Rick’s Reg/Rec
« on: May 22, 2021, 11:34:33 PM »
What is it about the Oregon part that you like better?

Turning Wrenches / Re: Well... Crap. Wiring confusion.
« on: May 22, 2021, 11:30:25 PM »
Stock stoplight lead on my 71 is yellow male.  Green goes to the rear stop switch and changes to yellow for light. 

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