A forum for owners of Yamaha TTR250 trail and enduro bikes!

Members Login
Username 
 
Password 
    Remember Me  
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Crankcase plug is seized (flathead)
Post Info TOPIC: Crankcase plug is seized (flathead)
Lurkville


Member

Status: Offline
Posts: 22
Date:
Crankcase plug is seized (flathead)
Permalink  
 

Hey crew, new to the forum. I own a 2001 TTR for my girlfriend to kick around. Just starting to tear down the motor, and found that the smaller plug (flathead) on the crankcase cover is completely seized. Tried a flathead amongst other things and can’t get it to budge. i can’t belive they used a flathead design for these.. oh well. I tried the search option but didn’t find any info.

 

what do you guys use to unscrew these? Is there a better tool? What are aome options?

 

thanks



__________________
Moo


Senior Member

Status: Offline
Posts: 389
Date:
Permalink  
 

Find a nice big flat penny washer that fits snuggly, think Wilkos sell some. Grip the washer with pliers/mole grips and use it to turn the plug. This gives you the biggest contact area and reduces the chances of the plastic gouging.

__________________
TTRfan


Super Guru

Status: Offline
Posts: 8565
Date:
Permalink  
 

Exactly as Moo suggests biggrin

Just dived in to welcome you to the forum Dan wink

Brian



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
Lurkville


Member

Status: Offline
Posts: 22
Date:
Permalink  
 

Thanks for the prompt response fellas, I have some lying around. Ill give it a shot in a few hours. I was wondering what it was that was gouging at the edges..... Is it a plastic coating?

__________________
Moo


Senior Member

Status: Offline
Posts: 389
Date:
Permalink  
 

The whole plug is plastic no



__________________
TTRfan


Super Guru

Status: Offline
Posts: 8565
Date:
Permalink  
 

Interestingly Steve has a large plug in his second-hand parts bin that is made of aluminium - see here

Shame he hasn't got the small one in ali as well.



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
Cubber


Super Guru

Status: Offline
Posts: 2608
Date:
Permalink  
 

Welcome to the forum, Dan.

Good job it's here for you, isn't it? wink

Hope you don't gouge the cover any.

Martyn



__________________

You're never too old to learn something stupid

East Budleigh. Devon
tom13


Senior Member

Status: Offline
Posts: 225
Date:
Permalink  
 


Google translator
In Aliexpres I bought aluminum plugs for an Allen key.

__________________

Grandpa Tom

 
Lurkville


Member

Status: Offline
Posts: 22
Date:
Permalink  
 

Hey guys,

So here’s an update: I tiied a penny washer. Tried hammering it in til it was as snug as possible. Still didn’t budge and just stripped the plastic.

What’s my next best option? Should I drill it out?

Thanks

__________________
mossproof


Super Guru

Status: Offline
Posts: 1386
Date:
Permalink  
 

I think that's the only option left. Sounds like it's damaged beyond redemption anyway.

__________________
ttboof


Super Guru

Status: Offline
Posts: 1481
Date:
Permalink  
 

Maybe try a bit of heat if does come  out you have something until a new one arrives 



__________________
Lurkville


Member

Status: Offline
Posts: 22
Date:
Permalink  
 

What’s the best way to drill this thing out considering it’s plastic? Should I try left hand bit?

__________________
petenz


Super Guru

Status: Offline
Posts: 1156
Date:
Permalink  
 

hot air gun...sofen it might unscrew


.

__________________

 

.....................................................................................................

 http://www.kiwibiker.co.nz

Bikes... 06 TTR250 / 09 XT660R / 1977 Montesa Cota 348 MRR / 1979 Montesa H6 125 Enduro...

E-mail  xtpete1@gmail.com
TTRfan


Super Guru

Status: Offline
Posts: 8565
Date:
Permalink  
 

Or try tapping it around using a chisel or screwdriver on its top edge where it is away from the generator cover! Being careful not to slip of course......



__________________

Exeter, Devon, UK

http://www.ttr250.com  - The one and only dedicated TTR250 FAQ!  

TIP: For easy viewing bookmark the "Recent Posts" view - http://ttr250.activeboard.com/p/recent/ 
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Crankcase plug is seized (flathead)


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard