heli coils

[Zbadboy]

I recently purchased 2 banshees and have spent the last few months learning as much as possible about them, this site has been an increadible resource for this.

one of my machines is extremely mechanicaly sound, the other machine i have experenced more issuses with and believe i located my main issue. I have located a few location with stripped threads on the bike, 1 of the 4 intake bolts, were it bolts to the cylinder is stripped to the point it just spins when the bike is reved. Because of this the bike is sucking air and giving me problems. I need to fix this and am looking for suggestions on the best way of accomplishing this? (heli coil, tap to larger size, loc tite?)

When i was going over the bike i also found 2 other stripped thread locations, 1 is one of the clutch cover bolts, it is on the high side and doesnt seem to cause any leaks or problems, other is more critical it is one of the foot peg bolts it is not completely stripped but close to rendering the bolt useless and i could possible lose it after a day of riding however it is on the clutch side of the bike and i will need to remove this bolt any time i need to get into the clutch so i dont think simple loc titing it is the best option.

In the past i have fixed problems like this by drilling it out and tapping the hole the next size up and useing a new bolt, but i am worried i dont have a ton of metal to work with going larger in these spots. but with the intake and the footpeg i would very much like to be able to use the correct size bolt if i can repair the threads. Any advise would be apprecaited, is heli coil the best option here? i have never used one any advise with them? and does anyone know the thread size of these bolts or where i could obtain a tool to figure it out? also with the importance of the intake does any of the site sponser maybe offer a fix(curouis of price also), i am alittle nervous to attempt a heli coil on a part this critical on the bike, should i be or are these a piece of cake?

Or is there a better way of fixing these?

[Daniel Gottschalk]

I have used heli coil on everything thtat has stripped in thenpast on my bikes. Just be careful. Hi speed drill without pressing very hard so it don't catch. Then use cutting oil when you tap it backing the tap off frequently to clean then threads out. I've never had problems doing it. Good luck!

[badassbanshee479]

the side cover and intake bolts are m6x1 thread. Helicoils would be the best bet. I have also tapped these holes out to 5/16 thread and used a standard thread bolt with out issue. You can tap the hole to 5/16 without even drilling it. Just tap it real slow and use lots of cutting fluid.

[Zbadboy]

thank you, very much for the advise and information on thread size. Is there a tool for finding the correct thread size on these or any bolt? for example on the foot peg or is there somewhere that has that information already?

[badassbanshee479]

any decent tap and die set should have a thread pitch gauge. this will help you figure out what size and thread the bolt is. the foot peg bolts are M10 X 1.25 the search function at the top of the forum is a really handy devise for finding this kinda info out.

[Zbadboy]

thanks very much for the information new to this tap and die stuff and still new to the web site but with the 50 post requiement for the sale forum I'm throughing out my questions in posts and learning on the fly.

 

really though thank you for the response this was information I was struggling to obtain.

[bansheebob171]

helicoil is the way to go if it is installed correctly it is stronger than new.