1st gear grind - Page 3 - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #21 of 26 (permalink) Old 11-12-2016, 01:26 PM
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Quote:
Originally Posted by Rusty2 View Post
I have an 05 with a tranny grind issue that someone here might be able to help me resolve. The bike has 11,000 miles on it. I can start the bike cold or fully warmed up and it will click smoothly into 1st gear, but if I start the bike and let it run for just a minute and then put it in gear it grinds so badly that I generally shut it off, put it in gear and then restart to avoid the grind.

RPM at cold start up I think is about 2000.
Clutch feels good, but I have not preformed any adjustment procedure.
I've owned the bike for less than a year.
An oil change made no difference.
Should I tell the wife that Santa should just bring me a new one?
new always works .............

when a clutch stack is actuated while clicking thru the gears
oil dripz & is thrown out [ rinse cycle ]

while sitting in your garage days / weeks at a time
while cruising down the hiway at speed
[ by example possibly a tankful at a time ....]

oil is trapped between the friction plates & drive plates
at rest after cool down they get very sticky ....................

while riding at speed the residual trapped oil
is baked at near in a zip code approx 180 - 210 degrees
a hot sticky ****

no less pulling in or at the end of a ride
the residual oil is trapped
baked
sticky
all adding up to wonky actuation

question IS .........??
if U go out to crank up after bike has been sitting in gear overnite

a- do U feel a tug initially until the engine fires up ??

bike feels like it wants to move a little

slight lurch ??
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post #22 of 26 (permalink) Old 11-12-2016, 02:09 PM Thread Starter
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Quote:
Originally Posted by Steve Bracken View Post
There is one other factor worth noting about the clutch mechanism.

If you have gone through the system, replacing fluid, adjusting lever for more throw, soaking plates or changing them, dressing the basket, etc ....

After all of that, the only other parts that can cause a dragging clutch are the cylinders, master and slave.

If fluid is leaking back through a failed seal in either, you could experience problems getting the clutch to fully disengage.

It's just something worth bearing in mind.
All very good information. Thanks for taking the time and sharing your experience.

Rusty
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post #23 of 26 (permalink) Old 11-12-2016, 02:26 PM Thread Starter
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Quote:
Originally Posted by road1dog View Post
new always works .............

when a clutch stack is actuated while clicking thru the gears
oil dripz & is thrown out [ rinse cycle ]

while sitting in your garage days / weeks at a time
while cruising down the hiway at speed
[ by example possibly a tankful at a time ....]

oil is trapped between the friction plates & drive plates
at rest after cool down they get very sticky ....................

while riding at speed the residual trapped oil
is baked at near in a zip code approx 180 - 210 degrees
a hot sticky ****

no less pulling in or at the end of a ride
the residual oil is trapped
baked
sticky
all adding up to wonky actuation

question IS .........??
if U go out to crank up after bike has been sitting in gear overnite

a- do U feel a tug initially until the engine fires up ??

bike feels like it wants to move a little

slight lurch ??
Although I have experienced what you describe, that slight tug is not the norm.
If it matters, through out the year the bike rarely sits for more than a few days and never more than two weeks.

I appreciate your input!

2005 Yamaha FJR1300A
2006 Suzuki C50T 805cc Cruiser
2003 Suzuki S40 650cc
1978 Honda CB754 Bagger
**** Yamaha 50cc Scooter
1973 Suzuki TS185 Enduro
1972 Honda SL100 Enduro
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post #24 of 26 (permalink) Old 11-12-2016, 02:55 PM Thread Starter
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Well everyone, huge THANKS for all the input. I now have a much better feel for how to approach my little issue and best of all, any fix mentioned will not be hugely complicated or expensive. It just seem odd that I can achieve a nice consistent smooth shift at cold start high rpm, but not a minute later at say 1700. Still wonder what would explain that, but now I have the information needed to get it dialed in.
BTW, got out for another really nice ride between storms yesterday afternoon. My planned one hour ride went to three. I've always loved riding in that "calm before the storm" and the rain arrived about 5min. after the bike was tucked away in the garage. PERFECT!!!
Thanks for all the advice,
Rusty
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post #25 of 26 (permalink) Old 11-23-2016, 08:20 AM
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Rusty 2; How long are you holding the clutch in before shifting into gear? Maybe the clutch master cylinder or slave cylinder are losing pressure a slight amount and it shows up when the oil's cold. Have you refreshed the clutch fluid?
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post #26 of 26 (permalink) Old 11-23-2016, 09:20 AM
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I've never really had the kerchunk issue as bad as most, and never have a grind issue unless I didn't hold the lever to the bar (or had the lever misadjusted, or had a worn lever bushing, or had old clutch fluid). Start by getting all the basics in top shape, and if you still have a problem, dig into the clutch plates, etc. as Steve suggests. Never a bad idea to do a clutch plate clean and soak.... not to start an oil debate, but sometimes that can have an effect. Perhaps try a different one next oil change as an experiment, say Rotella 15W40. A bit higher viscosity is likely to be somewhat better for shift quality overall.

Ray
Keep yer stick on the ice....
2014 FJR1300A - Root Beer (sold)
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