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  #2851  
Old 12-27-2011, 11:42 PM
5-7HEAVEN 5-7HEAVEN is offline
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Default Re: what did you do to your motor bike today?

It was such a nice 5-mile ride home from work.

The engine chain is VERY tight, so I'm "babying" it. The engine feels VERY strong, running the bike at slower speeds and less rpm. The sparkplug was brownish-black, so I leaned out the carb a smidge.
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  #2852  
Old 12-28-2011, 12:11 AM
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GearNut GearNut is offline
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Default Re: what did you do to your motor bike today?

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Originally Posted by CTripps View Post
I rechecked the back wheel today, and everything looks good. Still sitting on pressure, nice and firm.

So, I pulled the muffler out of the kit box I've used the motor from, opened it up and it's a whole different style inside. The old one came into the chamber, had a cat. converter, then went back to narrow pipe down to the bolt with holes in the sides and baffles tacked to it that sort of fit to the larger pipe. The new one doesn't narrow after the converter, and has a ring of holes on the bottom where the threaded rod is tacked on. They were clear of debris, so I didn't need to open them up. A few minutes per hole with the dremel on the mounting flange elongated the holes to allow me to turn it a few degrees to clear the cranks without heating and bending the pipe.

After that I braved the rain and ran it down the lane and fired up. A few trips up and down the lane and it's very happy. Back to the garage, I've got it idling with the clutch lever locked in, and noticed that it wanted to move a little. Lifted up the bike and the wheel began to turn. Release the clutch lever, and it turned a bit faster. So, shut it down and adjusted the clutch arm until the engine was completely disengaged. No problem now, but I'll have to keep an eye on it. The old brake cable I used as a repair must be stretching more than I expected.

While I had the wheel off I should have roughed up my brake pads, they're not grabbing as well as they used to. I'll replace them soon, they're not very expensive, but in the meantime anyone have any suggestions for softening up the rubber or roughing them up to make it grip a little better? I was thinking of scuffing them with a bit of sandpaper, and I thought about wiping them with a drop of gas and wiping them off, but haven't tried it.

Years ago a good friend of mine was a professional freestyle rider. You know, the guys who ride on the front wheel while going in figure eights and end up doing a back flip and landing perfectly to do a wheelie while sitting backwards on the handlebars. What he could do off a simple jump was phenomenal! Backflips, cancans and nacnacs were a simple warm up for him.

Anyways....I digress.....
He would always clean his rims with WD40 and make sure that they were well wiped clean afterwards. Miniscule WD40 residue left behind, but still there. No dressing on the brake pads although the calipers were tweaked a little so the rear of the pad would contact the rim slightly before the front of the pad would. I followed his advice and found that the braking sucked really bad.....at first. After 10-15 moderate stops they became very powerful and consistently reliable brakes.

Friends whom I let ride my bike would curse at me after grabbing a handful of front brake because they expected them to be typically weak as most were back then. A strong handful of front brake on my bike would send you over the handlebars.

Take this as you will, but I will not recommend something safety related that I have not done myself.
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  #2853  
Old 12-28-2011, 12:27 AM
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CTripps CTripps is offline
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Default Re: what did you do to your motor bike today?

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Originally Posted by GearNut View Post
...always clean his rims with WD40 and make sure that they were well wiped clean afterwards. Miniscule WD40 residue left behind, but still there. No dressing on the brake pads although the calipers were tweaked a little so the rear of the pad would contact the rim slightly before the front of the pad would. I followed his advice and found that the braking sucked really bad.....at first. After 10-15 moderate stops they became very powerful and consistently reliable brakes.
That sounds like a good place to start. I think I've heard of that trick with the pads, now that you mention it. I suspect minimal exposure to WD40 could also help keep the pad from hardening as quickly (but I'm no pro in that field, it makes sense to me with what I understand of the materials and sciences invloved).
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  #2854  
Old 12-28-2011, 12:33 PM
msrfan msrfan is offline
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Default Re: what did you do to your motor bike today?

I put a new end on the compression release cable of my 8hp Briggs bike and test rode it.





Then I patched the front tube on my grandson's 5hp Briggs bike and test rode it.




Still need to clean the carb on my original 5hp Briggs bike.




Then clean the carb on my Whizzer.





After that, I can tinker with my race bike.



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  #2855  
Old 12-28-2011, 12:39 PM
msrfan msrfan is offline
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Default Re: what did you do to your motor bike today?

Yep, it's time for some early spring cleaning and maintenance. So many bikes, too much fun.

Also need to work the bugs out of my next race bike.





Then I can get back on some projects I started a while ago.





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  #2856  
Old 12-28-2011, 02:02 PM
MotorNut123 MotorNut123 is offline
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Default Re: what did you do to your motor bike today?

love the look of that race bike msrfan. cool little go kart u got there too. you rebuilding that black bike?
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  #2857  
Old 12-28-2011, 02:17 PM
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Skarrd Skarrd is offline
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Default Re: what did you do to your motor bike today?

pulled my spare motor apart for the **** of it (the one i blew up) found lots of little peices of metal in the crank, but everything else was fine. gonna blueprint it and put it back together. ^^
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  #2858  
Old 12-28-2011, 02:31 PM
msrfan msrfan is offline
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Default Re: what did you do to your motor bike today?

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Originally Posted by MotorNut123 View Post
love the look of that race bike msrfan. cool little go kart u got there too. you rebuilding that black bike?
Thanks, MotorNut123, the black bike is one I started building a couple of years ago and got sidetracked with other projects. The go kart is a modified garden tractor I'm building with my grandson to replicate his 1974 IHC Scout 4X4. It's in The Tavern category under Four Wheel Project. We just starded on the body. I have to get it done by this April for an event with his off road club, so you'll be seing more of it soon.
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  #2859  
Old 12-29-2011, 11:49 PM
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breno breno is offline
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Default Re: what did you do to your motor bike today?

Decided to get rid of the china spark plug lead and replace it with some welding lead + replace the boot and spark plug + a new CDI.

I didnt realise how small of gauge the standard spark plug lead was, glad its gone now.

Cut the white wire off the magneto and sanded off the laminate at the points where the mag is fitted/fixed to the bottom end for a better earth.
Soldered the cables up and went for a spin.

More then likely the placebo effect getting the better of me but it seems alot smoother throughout the rev range, so it was worth doing it IMO.
Attached Images
File Type: jpg difference in leads.JPG (91.5 KB, 45 views)
File Type: jpg fitted.JPG (103.4 KB, 43 views)
File Type: jpg bike.JPG (169.9 KB, 51 views)
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  #2860  
Old 12-30-2011, 05:00 AM
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DaveC DaveC is offline
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Default Re: what did you do to your motor bike today?

The only factor with the wire is Ohms of resistance per foot. What you have might be considered overkill but there's nothing wrong with that. My last ignition had Mallory Sprint solid core racing wires. Good stuff. Thing is, I know of a ratrodder that has barbed wire for sparkplug wires
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