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Mac Morgan

Forum Contributor
  • Content count

    42
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About Mac Morgan

  • Rank
    Club Racer
  • Birthday 12/23/1945

Profile Information

  • Location
    Hockessin, DE
  • In My Garage:
    98 VFR800, 04 VTR1000, 77 BMW R100RS, Bultaco Streaker, RD400LC, KLX250, Ford Focus RS, 1952 Vincent
  1. Maybe time for a bit of lubrication? Never had a issue with either of mine.
  2. Not sure where the bike came from but I've rebuilt a lot of carbs and a pair from an airhead BMW from Texas had a lot of dried brown stuff in the float bowls. Some of it comes from contaminates in the gas. If the bike's been sitting, check the tank with a good led light and see what's inside. Metal Rescue (from Amazon) is a great product for getting rid of rust. Good luck.
  3. Just a thought here but do you all ever look at the factory shop manual? It got all the routing info for cables and hoses. Also shows how to rebuild every component on the bike and is downloadable on this site. Most of the brake problems I've run in to are the result of not changing the brake fluid. I did find a de-laminated brake hose on 40 year old CB400/4 as well as a stuck caliper piston. Make sure the return orifice in the mastercylinder isn't plugged. You can use. .009 guitar string to clear it... carefully! I just had my front end apart on my second 98 VFR in order to service/rebuild the forks, clean the brake calipers and was thinking of finally installing new brake lines. I've never, ever had a problem with either bike, both 15 yrs. old. While cleaning the calipers I was surprise how clean the pistons were but also how much brake dust was in all the nooks and crannies. All six of the pistons easily pushed back into the calipers with only finger pressure. The oem pads had plenty of life left so they got reinstalled. I think you can do an easy job of cleaning the calipers up using either HondaBrite (actually S100) or aluminum wheel cleaner and a good stiff brush. By the way, the notchy feeling from the steering head bearings turned out to be the 15 year old hardened grease on the bearing races. Cleaned and retorqued (good idea to use the special socket from Honda for that- don't know how you'd ever get it correct without it), it feels like a new bike. Also, installed Jamie Daugherty's damper kit. For the money, one of the best kits out there. Mac Morgan
  4. Not sure what causes a gen 5 to have a "dangerous" front suspension or what a "just right" cornering position is. I've yet to find any anomalies on any of the VFRs I've ridden... other then first interceptor which I trashed at Summit Point during a WERA 3hr. race back in the early 80s. The 16" front wheel/tire made the bike very sustable to oversteering. Maybe you could expand on what happened just after the "just right cornering position" caused the "dangerous" front suspension to twist on dry pavement?
  5. I've been thinking of tearing into the wiring harness to look for corroded wiring, poorly designed connections and grounds. I have 2 98s, one I bought new and another from a friend who quit riding. I've experienced the normal gremlins; fried rr connector, unexplained resetting of the clock and trip meter- once traced to a loose ground connection at the battery. It possible that the stator is starting to fail although both pass the the ohm test. I'm sure there's a bit of planned obsolescence built into these bikes and as they age more and more components will fail.
  6. Recently a post regarding KTM simplifying their wiring harness hit the net. Has anyone torn into their wiring harness with the thought of doing the same?
  7. Good piece on suspension. Been riding a 98 since new and now have 2. Installed RaceTech valves in my VTR a few years back but found the combination of .95 springs and over-aggressive valving too stiff for our back country roads but now I have a complete VTR fork set with the RaceTech valving to play with. Mac Morgan Hockessin, DE.
  8. Ummm... Ever try Berrymans carb and Parts Cleaner? Walmart, PB, Autozone, etc.
  9. Just an FYI regarding bearings. You guys are throwing around the term "needle bearings" as being the same as "tapered roller bearings". They are not the same. If you look inside your rear suspension linkage you will see needle bearings; if you look at the wheel bearings on a BMW R100rs (or your F150 Ford PU truck) you will see tapered roller bearings. If you look at the steering head bearings Honda RC213 MotoGP bike you will see ball bearings.
  10. Having owned a 98 since new, I've had plenty of time to deal with its eccentricities. My original rr which toasted the plastic housing was probably caused by poor connections. Some battery terminal issues the same. I replaced the original rr with a Roadstercycle Mosfet unit which runs cooler then the diode OEM unit. On a recent 1000 trip I had the clock and odometer resetting and erratic temperature readout - finally everything just quit at a stop sign. Turned out to be a loose neg. battery terminal. Make sure you have GOOD CONNECTIONS everywhere and use dielectric grease! My original rr is now on my 89 VTR 250 doing great. I replaced the overheated terminals and the plastic housing and plugged it in. A small computer fan attached to the face of the rr will help cool it down by about 20-30 degrees. A lot of manufacturers us the same rr. BMW's GS800 has their rr attached to an outside frame rain, pretty much in the air stream. Good idea to get everything cleaned up - "cleanliness in next to godliness." Wheel cleaner, toothbrushes, scrub brushes and hot water work well for cleaning up calipers and around rotors. Ditzler wax and grease remover is great for removing road tar and chain-oil from the bike. Speaking of chains and sprockets, the oem chain and sprocket kit by either DID or RK is around $260+/-. A lot of aftermarket kits use a hardened aluminum rear sprocket which will not last! The oem front sprocket had a rubber damper vulcanized onto both sides - probably quiets things down, and is superior to any after aftermarket part. As for maintainance, both Honda and Regina (a chain mfg from Italy and supplier to Rossi's MotoGP Yamaha, recommend 80-90wt gear lube. It makes quite a mess but really works. How often? How 'bout every 250 miles! At 16,000 miles, my original chain was starting to emit red oxidation (rust debris) after 200 miles of riding, meaning the pins and rollers were gone. I found a bottle of gear lube and it really made a difference (and a mess) over the next 500 miles. BRAKES and clutch hydraulics : Fluid change every year! Also, chain gunk on clutch rod can build up in sprocket housing and cause sticking. If fluid is milky, water/moisture has invaded the system. I use Valvolene DOT4 - good product and price. Good luck with your VFR, their great bikes! Mac Morgan Hockessin, DE Quick FYI: Got a Spiegler Front/rear brake line kit with choice of line and fitting colors from Sportbiketrackgear.com. Also included a can of brake/contact cleaner and EBC DOT4 brake fluid and free shipping for $350.00. Ask for Nick Hande. Great service!
  11. Have a Dekevic SS hanging on my garage wall - bought it about 4-5 yrs ago. After spending a couple of hours trying to get it to fit (BTW,the stock system goes right on), I fired the bike up only to hear exhaust leaks from every cylinder. The front header pipes were 1/2" out of alignment and the rears wouldn't fit into their spigots without some help. That's why it's on the garage wall! I do have one of their SS long oval slip-ons (the connector pipe's fit to the stock header had to be enlarged for it to "slip on"). I called to complain but got the "cold shoulder" treatment. But the muffler does look good, sounds good without being obnoxious. Just thought you all would like to know. Mac Morgan
  12. Maybe it's time to spend a little more time on preventative maintenance. Don't know why you wanna be able to lock up your rear brake anyway!
  13. Not sure why we motorcyclists need so many fused circuits; maybe for the cell phone, nav, heated grips, battery tender, extra lights, 2way radio, stereo system? Maybe that's why so many batteries, RRs, wiring and stators are failing. My venerable 04 VTR is on it's original battery after 10+ years with only a battery tender hookup where as my VFR keeps playing guessing games with me! Just a thought Mac Morgan
  14. Seems like our venerable VFRs are always having electrical glitches and in my 68 year-old post-cardiac arrest mind, so am I. Went on a 1000 mile jaunt across PA last month with a friend. While riding to his house I thought about checking the battery terminals out which quickly left my brain. Later on the way up north I noticed my clock and odometer had reset and temp gage was doing funny things. At a stop sign, the bike just stalled and everything went dead. Pulled the seat and battery cover and immediately saw the problem - the 6mm bolt at the neg. terminal had worked itself loose and caused a bit of overheating of some near-by wiring, namely the BatteryTender lead and GPS lead. It was a quick fix and then back on the road. I am one one who is constantly looking at things on bikes that need attention and recently found the bolts holding the passenger pegs/exhaust hanger bracket on the sub frame loose. Some of the motor-mount bolts were also slightly loose. Good idea to take a torque wrench to fasteners from time to time. One day while on a ride the bike started to slow down. I pulled off the road as nothing was working only to find out later that I had left the RR connector disconnected! How could I have been so absent minded? I am currently knee deep in 3 other projects for friends: a 89 VTR250, 75 CB400/4 and a 83 XS650; all with some kind of issues. These bikes all suffer from some sort of long-term storage issues such as rusted gas tanks, plugged-up carbs, deep-seated electrical problems and general lack of parts availability. Luckily there are a lot of self-flagellating types like myself out there who have gone before or who are still going and looking for the truth (in old motorcycle repair/restoration) offering up suggestions, help and mis-direction. Somewhere out there is the answer to our never-ending quest to the evasive "Where did my electricity go" question. If and when one of you find it, you will have discovered the "Holy Grail!" Let's keep looking! Good Luck Mack Morgan
  15. Suspect 10 year-old gas has really gummed up the system. Need to go through each part of the fuel system and systematically look for the problem. Good idea to download service manual and follow factory process. Always a good place to start.