POS 40 year old motobikes

Public Ride & Trip report sub-forum.

Ride reports (RR) posted here are view-able to non-member readers, no log in will be required to visit this sub-forum - use this sub-forum if you want friends, family, co-workers who are not members of the site to be able to read and follow along.
Post Reply
dcarver
Contributor
Veteran
Posts: 480
Joined: Wed Jan 23, 2013 12:18 am
FJRModel: Gen2, Superior 2006
x 52
x 632

POS 40 year old motobikes

Post by dcarver »

Local ride to day on the CBX when BAM high idle syndrome starts! LOL.

Niehart loved this
juniorfjr
Member
Posts: 197
Joined: Sat Jan 19, 2013 4:22 pm
FJRModel: 2005 abs
x 165
x 129

Re: POS 40 year old motobikes

Post by juniorfjr »

If you hate it, give it away. Let me know when to pick it up.😉
Bust, Bugnatr, and wheatonFJR loved this
User avatar
FJRoss
Veteran
Posts: 1105
Joined: Sat Apr 14, 2018 7:41 pm
FJRModel: 2011 A
Location: Fredericton NB (Canada)
x 267
x 863

Re: POS 40 year old motobikes

Post by FJRoss »

"Carver Tape" - the equivalent of leaving the protective plastic on the livingroom furniture...
(Get some 3M paint protection film.)
Bust, Niehart, and wheatonFJR loved this
User avatar
CollingsBob
Contributor
Veteran
Posts: 1415
Joined: Thu Mar 08, 2018 2:19 pm
FJRModel: 2017 FJR1300ES
1953 “C” Vincent Rapide
Location: Winnipeg
x 2912
x 1277

Re: POS 40 year old motobikes

Post by CollingsBob »

Air leak someplace in the intake manifold? Try squirting WD40, very carefully at all the junctions between the carbs and the heads to locate the air leak. If the problem is neoprene intake manifolds that have got hard with age, they can be softened by soaking them in oil of wintergreen. I use Hylomar gasket sealant, applied just thick enough to be opaque to all surfaces.
wheatonFJR loved this
User avatar
escapefjrtist
Veteran
Posts: 705
Joined: Sat Jan 19, 2013 12:51 pm
FJRModel: '15 FJR 1300A
Location: Snohomish WA
x 792
x 646

Re: POS 40 year old motobikes

Post by escapefjrtist »

Process of elimination DC. Are you sure the t-cables are returning freely?

~G
IBA34365
'15 FJR-USD-A
'18 Tenere
User avatar
fjray
Veteran
Posts: 431
Joined: Sat Jan 19, 2013 12:27 am
FJRModel: 04
Location: LaPine Oregon
x 180
x 864

Re: POS 40 year old motobikes

Post by fjray »

I agree with George, make sure there is enough slack in the cables to let it return to idle and don't mess with anything until you hear back from the carb guru. Remember the trouble shooting flow chart. The first question is " Did YOU touch it" :stickpoke:
raYzerman, wheatonFJR, and Bust loved this
All things are simple when approached with a simple mind.
dcarver
Contributor
Veteran
Posts: 480
Joined: Wed Jan 23, 2013 12:18 am
FJRModel: Gen2, Superior 2006
x 52
x 632

Re: POS 40 year old motobikes

Post by dcarver »

Did not change or touch anything.. Just rode it..

Carb guru, Jack Wagner, quote.. "Carb Sync". We do the best we can on the bench, but sync on bike is highly recommended..

I just purchased another CarbTune Pro so all 6 discrete carbs can be monitored.

In the meantime, chasing KZ1300 issues.. and the poor ol KrZy8 lays sitting waiting for lift time and a plethora of parts...
User avatar
Bust
Veteran
Posts: 1943
Joined: Sat Jan 19, 2013 12:08 am
FJRModel: 68' Schwinn Stingray
Location: Owosso Mi
x 4389
x 1069
Contact:

Re: POS 40 year old motobikes

Post by Bust »

What's strange about those 40 year old motorbikes is how badly they perform compared to today's bikes.
My nephew completely rebuilt a '72 CB 750 last spring. Now remember those were "cutting edge" machines.

The frame flex, weak brakes and just general instability at 70 plus is crazy. But we hammered the hell out of them because they were so much better than their predecessors.
HotRodZilla, raYzerman, wheatonFJR and 1 others loved this
You ever see a grown man naked Billy?

wheatonFJR probably loved this
Post Reply