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63 Posts
hey guys whats up, i was wondering i have a yoshimure slip on on my 400ex and i made it into a shorty, but anyways what do you think of a fmf megabomb header with the yoshi shorty?
headers
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63 Posts
cool thanks guys and any suggestions on jet kits?
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6,604 Posts
In my opinion a jet kit is a waste of money. You can buy the individual jets for much cheaper. I guess I shouldn't say a waste of money. They all make their own kit...
Keihin: http://www.mawonline.com/google/T420407.HTM
Mikuni: http://www.mawonline.com/google/T426270.HTM
Dyno: Power Parts Plus | Dynojet Kits
Keihin: http://www.mawonline.com/google/T420407.HTM
Mikuni: http://www.mawonline.com/google/T426270.HTM
Dyno: Power Parts Plus | Dynojet Kits
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63 Posts
sweet thanks, and now i have a problem. well this past thursday i saw that one of the header studs was loose and i went to tighten it and it snapped cause it was cross threaded. now i have been trying to remove the broken stud that is stuck inside the block. i removed the header, and first tried the old vise grip trick but no luck, then second i tried an easy out but with my luck the extractor part snaped off nice and flush with the end of the bolt, and after that i tried drilling the stud but the extractor is eating up all of my metal drill bits, and after all of that i tried a tightning bolt extractor , first i tap and died the small bolt and screwed the extractor on, then put the outer part on and tightened that which now that cant get tight enough or whatever too screw it out. WELL what do i do now, try and drill the old bolt out and then tap the new hole? should i remove the motor to make it easier to fit a big drill their? i need some ideas guys lol thanks.
and what kind of oil do you guys run in your 400ex's ? / filter/ plug/wire thanks
and what kind of oil do you guys run in your 400ex's ? / filter/ plug/wire thanks
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5,832 Posts
I use GN4. You can get it at Honda parts stores. I also get my filter there.
The manual calls for an NGK plug. Off the top of my head I do not know the size.
Someone will probly be along sortly to tell you the size. Never replaced the wire. I am a OEM guy and would go to Honda and pay to much for that aswell.
As far as your head bolt issue. I did this on the head of and old chevy 350 once and had to take the head off and put it on a drill press. That harded steel easy out is a B---h to drill out but if you do it slow and with plenty of lube you should be fine.The reason why I used a drill press was because you can keep the part square with the bit easier to eep the bit out of the threads.
The manual calls for an NGK plug. Off the top of my head I do not know the size.
Someone will probly be along sortly to tell you the size. Never replaced the wire. I am a OEM guy and would go to Honda and pay to much for that aswell.
As far as your head bolt issue. I did this on the head of and old chevy 350 once and had to take the head off and put it on a drill press. That harded steel easy out is a B---h to drill out but if you do it slow and with plenty of lube you should be fine.The reason why I used a drill press was because you can keep the part square with the bit easier to eep the bit out of the threads.
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63 Posts
thanks for the help and ideas man ill be calling out of work once again tomorrow for-sure to get it done lol, and i was wondering i may be interested in the pro circuit header with my yoshi shorty , any of you have the t-4 header? how is it?
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63 Posts
thanks helmut now i dont have to look lol
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4,390 Posts
On that head stud if you havent drilled to deep of a hole in it you could dremal out a notch in it and try a flat tip screw driver. I have used one of those angled flat tips and a braker bar and it worked well. Like i said dunno how big of a hole you drilled tho.
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23,587 Posts
You're welcome.
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63 Posts
slammedranger i think, well i hope "haha" you saved my day no **** lol
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4,390 Posts
Right on glad i could help. I didnt know how close to the head you broke it off so i was hoping i got to you before you tore it apart.
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63 Posts
its pretty close about 1/4 of a inch sticking out
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23,587 Posts
That's probably going to be hard to get out. You'll probably end up having to drill it out.
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63 Posts
yea, ill let you guys know how i make out
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