MT Rear WOBBLE on Right Hand Turns

[DVS]

I have a 2002 1800. MT Spyder with foot boards done in 2008. Raked front-end. Stock to the most part from purchase in 2008.

Been doing service after the trike sat for 5 years.

Noticed a wobble at different speeds. Adjusted out all but the right curve wobble at about 55 mph. If I turn a little left, it stops. Doesn't happen as much when climbing hill or accelerating.

Can anybody point me in the right direction. This test runs between jacking up and making slight adjustments is getting old. Looked all over the internet for explanation of each adjustment results to separator bar and diagonal adjusting bar.

Anybody out there solved an issue like this?

Thanks in advance, Debbie

[cScjhb]

Hi Debbie,

It could be tire cupping. Most of us experience different "feelings" when turning left and right.

I'd look at your front tire for scalloped tread. Good luck...... And, welcome. Jim

[rhino 2]

Just a shot in the dark ......Could a wheel bearing or the head bearing be going south......

[DVS]

Hi Debbie,

It could be tire cupping. Most of us experience different "feelings" when turning left and right.

I'd look at your front tire for scalloped tread. Good luck...... And, welcome. Jim

The front tire was new 5 years ago, no mileage, parked on concrete.

There is no front steering wobble.

It is like watching the ass end of your DOG when you return home.

I'll check all the tires too. Thanks. Debbie

[DVS]

Just a shot in the dark ......Could a wheel bearing or the head bearing be going south......

Thought about a bearing, but told myself with only 40K miles it shouldn't happen.

Will check it more closely.

Thanks, Debbie

[rhino 2]

Thought about a bearing, but told myself with only 40K miles it shouldn't happen.

Will check it more closely.

Thanks, Debbie

Bearings are unpredictable some will go 5 hundred miles some will go 1 hundred thousand miles..

[Jack Klarich]

Check all of the rear suspension joints for smooth movement

There may be a bind causing the wobble

[3W-lonerider]

The front tire was new 5 years ago, no mileage, parked on concrete.

There is no front steering wobble.

It is like watching the ass end of your DOG when you return home.

I'll check all the tires too. Thanks. Debbie

steering head bearings will indeed do what you are complaining about. i chased a rear end wobble on a valk motortrike for over a year. turned out it was the head bearings being indexed. also check the tightness of the front heim joints where they connect where the swing arm used to be. i had one come lose where it screwed into the ladder bar. if you would like to talk to someone on the phone about this you can contact me at 717-414-6142 my name is Rick and i worked on alot on motortrikes for 20 years. btw. i'm on the east coast, so anytime after 5:30 weekdays or after 5 weekends.

[DVS]

Thank you everyone for giving your expert advise. I will try to get it checked out ASAP. Will be back in touch to give an update.

Debbie

[CrystalPistol]

Somewhere I think I have a copy of the install manual that details the adjustments .... but in 40K miles, very easily could be, even likely, worn Heim joint wear at play. If loose, adjustment won't help, it will require replacement of the worn Heim joints. If mine, I'd park it up on ramps, secuely blocked, transmission in 1st too, and crawl under it with a good light and simply ask my Wife to vigorously shake it different bways as I watched the joints, even carefully placing my finger against suspect joints feeling for wear to show in movement.

[sgmdudley]

I have the MT Spyder Service Manual. File larger than allowed on Triketalk. If you need it, send email to Dayshus@comcast.net

[DVS]

I have the MT Spyder Service Manual. File larger than allowed on Triketalk. If you need it, send email to Dayshus@comcast.net

Thanks. I too have the very large Service Manual. It isn't answering the specific problems as they arise.

Debbie

[DVS]

Somewhere I think I have a copy of the install manual that details the adjustments .... but in 40K miles, very easily could be, even likely, worn Heim joint wear at play. If loose, adjustment won't help, it will require replacement of the worn Heim joints. If mine, I'd park it up on ramps, secuely blocked, transmission in 1st too, and crawl under it with a good light and simply ask my Wife to vigorously shake it different bways as I watched the joints, even carefully placing my finger against suspect joints feeling for wear to show in movement.

Thanks for the idea. Will add it to the list of things to get checked out. Hopefully, something will show it's problem!

Debbie

[DVS]

steering head bearings will indeed do what you are complaining about. i chased a rear end wobble on a valk motortrike for over a year. turned out it was the head bearings being indexed. also check the tightness of the front heim joints where they connect where the swing arm used to be. i had one come lose where it screwed into the ladder bar. if you would like to talk to someone on the phone about this you can contact me at 717-414-6142 my name is Rick and i worked on alot on motortrikes for 20 years. btw. i'm on the east coast, so anytime after 5:30 weekdays or after 5 weekends.

Thanks for the reply,

I have finally been able to check out the front heim joints. The right side is tight.

Years back, had tightened the outer ?Pivot Pin? on left because it was loose. The bolt and 1" rust color outer nut unit had worn the inside of the cover plate. I never tightened the nut as it felt okay.

I checked it again, after reading the MT Installation Manual. The carriage bolt was loose from underneath. With assistance, tightened the inside nut to pull the heim joint tight. Now the Outer Pivot Pin will not tighten ... can spin with my fingers. The inside nut spins at the same rate. The bolt threads are sticking out, does it need more washers underneath to take up the slack OR cut it off? Did I strip something? I am afraid it could pull thru or break during a turn. Is it advisable to remove the carriage bolt and inspect? Is this a MT part, the manual doesn't define details.

I thank you for the invite to call. Since I feel out of my knowledge zone, I may have my assistant call since he is more mechanically inclined to follow any conversation.

Thanks for any advise you may have to offer.

(Obviously, the upload turned when it attached.)

Debbie

[DVS]

Somewhere I think I have a copy of the install manual that details the adjustments ....

Thank you! You gave me the drive to searched MT and I found one for my Spyder Model.

Still working on my issues,

Debbie

[DVS]

So far replaced: All 12 Heim Joints ... Both Pivot Pins w/new carriage bolts ... 2 new spring shocks. Trashed the 2 MT Air Bags and ordered the #800 longs from Airbagit (waiting arrival). May need 2 new tires next. 14 year old P225/60R15 might be too big for New Air Spring Bags.

Meanwhile, back home ... the new driveshaft (GREEN)! Waiting for MT to respond to my e-mail.

This is a 2002 Honda 1800 built in 2008 w/ MT Spyder Kit. It is the 30 yr anniv. edition. They say the new drive shaft is suppose to fit every 1800.

MT Reply: We didn't line up the correct ends of the shafts. Didn't look at the photo on the MT website. Being exhausted has a way of making your mind foggy.

Debbie