Man are these screws soft!

[Hdale85]

Ok, so I'm working on tearing down my carb. I'm trying to remove the bottom cover to finish stripping it but the screws on this cover and crazy soft! I got one out, the rest aren't coming out and are now partially stripped, one is pretty stripped. I tried several different sized screw drivers and nothing. I don't know what to do now?

 

[87warrior917]

Yes they are soft and its dumb as hell for yamaha to use a phillips head on them. Good luck getting them out, and once you do replace them with stainless allen head screws and they will never get stuck again

 

[deerman2701]

i had to use needle nose vice grips to grip on some and back em out

 

[Hdale85]

UGH! I don't know how I'll get them out.........I think I have some regular vice grips somewhere.... some of them there is literally no space there....I honestly think I may have to drill them out and tap new holes?

 

[Hdale85]

Is there any danger to drilling them out? Maybe I'll drill the head off and make a small hole and pound an allen key in there.

 

[Hdale85]

Ok nevermind, I had some square drive bits and I pounded it down into a hole I drilled int he head and got them out.

I must say my carb doesn't look very dirty at all........ I'm having doubts that this was my problem.

 

[Noobwithawarrior]

My screws were crazy soft too, but i went to every hadrdware store around and couldnt find any allen heads that fit it...

 

[Hdale85]

Even stainless philips head screws would be an upgrade.

 

[Noobwithawarrior]

ha ya, but i couldnt find ANYTHING, exept for bolts,

 

[beastlywarrior228]

i did the same. i drilled them enough to where i could chisle an edge up. then i put the chisle on the edge and hammered them to loosten them up. i got some really nice allen heads from jetsrus then

 

[Hdale85]

Well I didn't have to do THAT much work lol. Was actually pretty easy.

 

[mopar1]

If you have a Fastenal nearby, they have the correct allen headed size. I only had to replace one of mine, but it any more do it I'll go ahead and do em all.

 

[dirtrider73068]

You can also get a dremal and cut a slot in it and use a flat head screwdriver, but if you get a pair of vise grips on them will work. And make sure your phillips screwdriver fits good in the screw if not it will strip them even easier.

 

[MotoArts]

Every biker's toolbox needs one of these, works like a dream. Definitely cuts down on the butchering:

http://www.harborfreight.com/7-piece-reversible-impact-driver-set-93481.html

Use a dab of antisieze or oil on the end of the threads when reinstalling. Don't overtighten them either. Just till the gasket or O-ring seals and screw is just snug is fine.

 

[Hdale85]

Well carb is back on, I guess I did everything right because it's running awesome now! I have a new spark plug and after I do my oil change and what not I'm going to check to see if it's running lean or rich or just about right.

One thing I was wondering, they have a 147.5 main jet on I believe it was. It's got an aftermarket exhaust so does that sound like about the right size? I forget the make of the exhaust....starts with an S or something. I'll be putting on a Uni filter soon so maybe if it's a bit rich with the 147.5 it'll lean out enough with the filter on it?

 

[elwood]

145 is stock, they bumped it up when they changed the exhaust. When you change the filter you might need to take it up to a 150, but you wont know until you put the uni on.

 

[Hdale85]

Herm, well if I do need to bump it up I think I'll likely have to use the stock one until I can order a jetting kit, would be a couple weeks.

Does 147.5 sound about right for just an aftermarket exhaust though is what I was wondering. Also the clip on the big needle was right in the middle.

 

[beastlywarrior228]

ya thats fine if the lids on, is it a supertrapp

 

[elwood]

Herm, well if I do need to bump it up I think I'll likely have to use the stock one until I can order a jetting kit, would be a couple weeks.

Does 147.5 sound about right for just an aftermarket exhaust though is what I was wondering. Also the clip on the big needle was right in the middle.

stock is smaller then the 147.5 it is a 145, if you have to bump it up next is a 150. And don't waste your money on a jet kit, go to a atv shop and just buy a jet, they are around 4bucks. Also leave the clip on the needle in the middle spot

 

[Hdale85]

I don't think it's a supertrapp, something I hadn't heard of before. I'll make sure and take note of what it is as I'm heading over there tonight to work on the brakes and stuff.