Member Photos - 650cc Unit Twins - 1963-1970 - Triumph Forum: Triumph Rat Motorcycle Forums
Classic, Vintage & Veteran Photos Pics of member's vintage bikes they own or used to own.

 132Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 528 (permalink) Old 03-24-2008, 12:30 AM Thread Starter
Formula Extreme
Main Motorcycle: 1970 TR6R
Senior Member
 
Join Date: Apr 2006
Location: New York, NY
Posts: 578
Other Motorcycle: 2006 Scrambler
Extra Motorcycle: 1966 Lambretta
Member Photos - 650cc Unit Twins - 1963-1970

Got to see my new bike this weekend and I love it. There are a few little issues that I need to fix, though. First, after I start it cold and let it warm for a couple of minutes, it idles at about 1,000 rpm's (or a little less) and I can shift it into 1st gear easily, but when it thoroughly warms up after 5 - 10 minutes riding, the engine's idling speed increases to about 2,000 rpm's and I have to shift into second to stop the tranny internals from spinning and then slip it into first, if I try going right into 1st gear when it's idling that high, it grinds the gears and then goes into 1st. So that's either a clutch adjustment or idling adjustment or both that it needs (this is my newbie guess at least). Second the rear brake has to be pressed down about an inch and a half before it starts to work and the wing nut on the rear brake adjuster is screwed up almost all the way on the threads, so maybe it needs new rear brake shoes or need the brakes adjusted somehow. The motor sounds and runs excellent and it goes down the road great, actually engine vibration is not bad at all. All things considered I'm thrilled with it, I just need to address these minor issues, also need to install a new steering lock as I have no key for the current one, actually have only one ignition key as well, has Union stamped on it and a code so maybe I can get a replacement of that. Cheers, all and here's a few pictures of it:





DaveM, suzyfan and wattage like this.
GleaminTwin is offline  
Sponsored Links
Advertisement
 
post #2 of 528 (permalink) Old 03-24-2008, 12:48 AM
Formula Extreme
Main Motorcycle: Mine
Senior Member
 
t100rc's Avatar
 
Join Date: Mar 2008
Location: Northern VA
Posts: 625
**** fine lookin ride! Idle adjustment is pretty simple. It's the screw on the right side of the carburetor. (Of the 2, it's the one to the rear ... the other is the air / fuel mixture) Get it hot then bring the idle down. Then adjust the air / fuel to bring the idle back up. Keep this up until you get the idle where you want it and the a/f isn't idling it up any more. You'll get to where you can 'feel' the carb adjustment. Do a search on clutch adjustment. Bike looks like it was recently restored, so it would shock me if the clutch is shot ... although, it does sound like your rear brake shoes are dead. That wingnut on the brake rod IS the brake adjustment. I know on my '70 500, I can easily lock the rear brake after getting it adjusted. And the twin leading shoe front brake is a monster (as drum brakes go) ... and mine is only 7 inches. (My BRAKE DRUM!! )

Anyway, sounds like you're only a couple of minor tweaks away from having a real fun summer! Be prepared to be late to stuff all the time because of all the folks who want to stop you and talk about your bike ...

Here's Mine:

RC
'70 T100
'56 T110 (in progress)
Crossroads Cycle
t100rc is offline  
post #3 of 528 (permalink) Old 03-24-2008, 06:02 PM
SuperSport
Main Motorcycle: Royal Enfield Electra
Senior Member
 
Join Date: Apr 2004
Location: france
Posts: 970
Other Motorcycle: 2003 thunderbird
Re the brake adjustment. Check you have plenty of brake lining. if so remove the operating lever from the splined spindle on teh wheel from off the splines and refit it a spline different ( back) this will give you more room for your adjusting nut. NOTE. the adjustment position on your bike looks correct, being just before top dead centre, the brake should start to bind at that point ( relative to the splined operating arm) IT may have been replaced a spline or two off.

nice bike, that model/year is probably my all time favourite

hope this helps

A wise man learns from his mistakes..
A genius learns from other peoples mistakes.

Last edited by panda; 03-24-2008 at 06:09 PM.
panda is offline  
 
post #4 of 528 (permalink) Old 03-24-2008, 06:11 PM
World SuperBike
Main Motorcycle: '64 Norton N15CS
Senior Member
 
McQueen's Avatar
 
Join Date: Nov 2004
Location: San Jose, CA
Posts: 1,848
Other Motorcycle: '79 Triumph T140D Bonnie
Extra Motorcycle: '71 Triumph T100R Daytona
Love it! Love it! Love it!

+ Ton Up Club NorCal +

Nothing says "it's my first day on the Internet!" like putting a picture in your signature.
McQueen is offline  
post #5 of 528 (permalink) Old 03-24-2008, 07:17 PM Thread Starter
Formula Extreme
Main Motorcycle: 1970 TR6R
Senior Member
 
Join Date: Apr 2006
Location: New York, NY
Posts: 578
Other Motorcycle: 2006 Scrambler
Extra Motorcycle: 1966 Lambretta
Hey guys, thanks a lot for the compliments. Also thanks for the advice about re-positioning the brake lever on the rear hub on it's spline as a possible remedy to the adjuster wing nut being fully threaded on it's adjustment threads, one way or another (either myself doing it or at a shop I'll have to inspect the drum's lining for thickness and the shoes). I just got my owner's handbook in the mail tonight, and I was thumbing through it, and it mentioned the "air control" on the handlebar, meaning the choke, and said "close the lever to the stop to richen the mixture only when starting a cold motor". Well, the way the bike was delivered to me the choke lever was rotated fully clockwise against the stop, I assumed that was the choke closed position, but now I'm thinking maybe the choke was fully open. That might explain my problem of the idle rising to 2,000 rpm's when the bike warms up, and then my resulting difficulty in shifting into 1st gear at such a high idle, at low, cold idle of 1,000 rpm's it shifted into 1st gear fine, and if I was rolling down a gentle hill even with the 2,000 rpm warmed up idle, it would still slip into 1st fine, it was just at a stop with the high idle that I would grind going into 1st, and then realized that if I put it into 2nd it would stop the tranny internals from spinning, then I'd slip her into 1st. The picture below shows my choke lever position, fully clockwise, I just would like to confirm, is this the choke fully open or fully closed?

DaveM likes this.
GleaminTwin is offline  
post #6 of 528 (permalink) Old 03-24-2008, 07:25 PM
SuperSport
Main Motorcycle: 2000 Adventurer
Senior Member
 
Woody1911a1's Avatar
 
Join Date: Nov 2006
Location: Marblehead , Mass USA
Posts: 1,034
Other Motorcycle: 67 T100C
Extra Motorcycle: Buell Blast
your choke is fully on . turn it the other way for riding .

If you love it , let it go . If it comes back to you , you've highsided ;-)
Woody1911a1 is offline  
post #7 of 528 (permalink) Old 03-24-2008, 07:43 PM Thread Starter
Formula Extreme
Main Motorcycle: 1970 TR6R
Senior Member
 
Join Date: Apr 2006
Location: New York, NY
Posts: 578
Other Motorcycle: 2006 Scrambler
Extra Motorcycle: 1966 Lambretta
Sweet! Thanks, you have confirmed what I suspected. Most likely my high idling problem was caused by starting bike with choke wide open and leaving it wide open the whole time I was running it. Now that I look at the choke lever it makes sense that in that clockwise direction it's pulling on the cable, and opening the choke. Why it was delivered to me like that, who knows. Now, I just have to figure out if I can fix the brake issue myself or I'm better off bringing it to a shop. I guess if it's in the shop, I could have the whole bike thoroughly checked over, clutch adjusted, the grease fittings greased, maybe the valves adjusted, although I don't think it needs that, I'm just saying I don't really know what to look for in making certain that the bike is properly sorted and adjusted just right. I'll have to look through my service manual to see how complicated it is to check the drum lining for thickness.
GleaminTwin is offline  
post #8 of 528 (permalink) Old 03-24-2008, 08:16 PM
Formula Extreme
Main Motorcycle: 1959 Triumph TR6
Senior Member
 
Join Date: Aug 2007
Location: Dayton Ohio
Posts: 810
Other Motorcycle: 2003 HD Road King Police
My old 59 shifts like that. with the idle low, it will go into first real easy. I usualy shift to second, then first anyway, as I got in the habit while riding other Brirbikes. I usr ATF in the primary on the 59, I don't know if it is possible on yours. One suggestion is ,no matter how long the valve tappet clearance is set; re check then after a couple hundre miles. The head tends to 'bed down' using up the clearance. If it hasnt' already bed downed, you will ahve to recheck the torque on the head. After a while those things settle down.
Red1959 is offline  
post #9 of 528 (permalink) Old 03-24-2008, 08:47 PM
Formula Extreme
Main Motorcycle: 1975 Trident T160
Senior Member
 
Join Date: Aug 2005
Location: Marysville,Pa
Posts: 548
Other Motorcycle: 2002 Bonneville
Sorry folks.I'm a little confused.I thought that the lever position(in the picture)on the choke is set to 'off'.
I searched old posts under 'choke lever' and came up with the same info. Do I have it backwards?
Thanks for any other opinions.
The bike is a beauty by the way.

Just music and my motorcycles. Thats all I need.
retrobiker is offline  
post #10 of 528 (permalink) Old 03-24-2008, 09:12 PM
SuperSport
Main Motorcycle: 2000 Adventurer
Senior Member
 
Woody1911a1's Avatar
 
Join Date: Nov 2006
Location: Marblehead , Mass USA
Posts: 1,034
Other Motorcycle: 67 T100C
Extra Motorcycle: Buell Blast
Quote:
Originally Posted by retrobiker View Post
Sorry folks.I'm a little confused.I thought that the lever position(in the picture)on the choke is set to 'off'.
I searched old posts under 'choke lever' and came up with the same info. Do I have it backwards?
Thanks for any other opinions.
The bike is a beauty by the way.
ok , my oldie doesn't have a choke , but was just answering by looking at the picture and using logic . looks at the pic and how the cable enters the control , reads poster say "The picture below shows my choke lever position, fully clockwise,...." .

unless the choke is turned off by tensioning the cable .....?

If you love it , let it go . If it comes back to you , you've highsided ;-)
Woody1911a1 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in













Similar Threads
Thread Thread Starter Forum Replies Last Post
Member Photos - 650cc Oil-In-Frame models johnquinnell Classic, Vintage & Veteran Photos 473 09-02-2019 04:32 AM
Member Photos - Pre-Unit 500cc Twins GrandPaulZ Classic, Vintage & Veteran Photos 17 07-22-2019 01:29 PM
Member Photos - Unit Construction 500cc twins slimmer Classic, Vintage & Veteran Photos 220 07-21-2019 10:01 AM
Member Photos - 750cc Twins hobbit Classic, Vintage & Veteran Photos 587 04-27-2019 10:04 AM
Member Photos - Pre-Unit 650cc models Red1959 Classic, Vintage & Veteran Photos 217 06-16-2017 04:24 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome