Swing Arm Pivot Bolt Removal, Help

[duananonly]

Hi Guys, Lookin 4 Help In Removing A Stubborn Swing Arm Pivot Bolt On 1983 250r, Tried Lubricating And Heavy Hitting, Is There A Particular Penetrating Oil To Use, How Do I Get The Oil In And Around The Needle Bearings, The Shock Is Out, Do I Have To Remove Axle Etc First, Any Help Would Be Greatly Appreciated, I Also Have A Flooding Carb On 1984 Yamaha Tri-moto 225, Starts First Pull, Idles Well, Runs Good. Turn It Off Then Fuel Drips Out Overflow And Wont Start Again Untoll Left For A While,,, Thanks,, D1

[chris200x]

sounds to me like a a sticky needle valve in your carb. take it apart and clean it througholy.

The swinger bolt can be a nitemare. (most of us guys have been there!) You can try soaking it in pb blaster or kroil.. but mostly likely it will have to be cut and or pressed out.

Those bolts can be hard to find. although I think someone here on the boards offers them new in stainless. that will be your best bet.

Welcome to the forums...

[duananonly]

Nice Tri-z, Thanks 4 The Info

[honda250sx]

duananonly - Probably going to have to cut that SOB out. I know its a daunting task. I had to do it on my tri-z. Get some really good grade bi-metal saw-zaw blades and go to town. Be careful not to cut into the frame. You can waste days upon days trying to beat,heat and penetrate oil that thing only to be disapointed.

Sometimes its easier to cut it out if the bike is flipped completely over as well.

As far as replacement swingarm bolts. Hit up Tritecate350 on the boards. He was machining some real nice ones.
http://www.3wheelerworldforums.com/showthread.php?t=81056

[scooterroo]

ooof the dreaded swinger bolt... yeah cut that thing out of there get a new one!!

[maggiesboy]

sawzall: an avid three wheeler collector / riders most valuable tool in the garage

[joe_f7]

can't break it free with a impact gun?

[roger86200x]

I had that problem... on my rolling chasis...

I tried PB blaster and a 15lb sledge hammer.... it just dented the frame in that are so I stopped.... NOT a good idea. Take the good advice adn cut it or soak it for days and try hitting it.... but not like a gorilla like I did, lol
:eek:

[kxt250r]

save yourself some time and just cut it. a small grinder will do the trick

[300rman]

well the final score on the bolt that was in my spare swinger....
SCORE:

round 1
Swingarm bolt=1
40 TON press now broken, PB, and heat and hammer=0

round 2: Swingerm bolt=0
METABO cut off tool=1

[duananonly]

I Think Ill Be Purchasing A Sawsall This Weekend. Thanks 4 The Tips...

[Rex Karz]

Air hammers work wonders.

[300rman]

Air hammers work wonders.

not going to work this time around......if a 40 ton press, combined with lube, heat, and a hammer didnt work........

[roger86200x]

If you havent cut that bolt out yet...DONT

I did, and I cant find a new one ANYWHERE.... it really blows...

Find a bolt BEFORE you cut the old one!!!

Roger

[jason 32]

its probly turning the bearings as you turn the bolt
if you sledge it you will probly mushroom the threaded side and it wont go through the motor or frame

maybe a sawzall will b needed, then tap it out with a hammer
can yo heat the frame with a torch with out damaging the engine?- it will expand it ,and let it go

[sunblock]

I feel your pain, just went through that last weekend. Took a combination of a sawsall and an air grinder to cut the bolt out. I broke a blade on the sawsall and found the grinder to be quicker and easier.