Other i am to lazy sorry, what is the size and length off bpipe head bolts

godocgo

sport
Location
s. fla
i need the complete size of bpipe head pipe bolts yami: diameter, thread and length. sorry i am sure it is already posted here somewhere.

lee
 
Last edited:

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Good luck.

The typical thread pitch for M10 bolts is 1.5.
I would be very surprised to find M10x1.25 bolts, let alone stainless, at any local store.
They are specialty.

Oh, and there isn't a single non-metric bolt on a Superjet..
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
45 length, metricspecialties.com carries them in stainless allen head.


I've had a bad experience with a stainless allen head bolt galling to the aluminum manifold. The bolt broke off.

I've been back to stock Yamaha case bolts since then.
Or use grease or anti-seize.
 

godocgo

sport
Location
s. fla
i thought the exhaust bolts were m8? or do you mean from a stock exhaust pipe.

i bet i have those, i know i got to have three case bolts

charlie is your avatar inhaling or is your ski shotgunning someone
 
i thought the exhaust bolts were m8? or do you mean from a stock exhaust pipe.

i bet i have those, i know i got to have three case bolts

charlie is your avatar inhaling or is your ski shotgunning someone

i believe theyre the "muffler stay" bolts on the oem pipes that are used to connect the oem pipe to the oem head through the joing bracket. i know that when you remove a stock exhaust to put on a b pipe, there are 3 leftover oem bolts thats are identical to the FPP headpipe bolts, but not shytti.

im guessing you probably have more of them than i do.

----------

im actually giving my SJ a shotgun.

you have to reverse the polarity of the battery cables, re-time, and re-thread the bendix clutch for this to happen.

dont try it at home.
 
Last edited:

BruceSki

Formerly Motoman25
Location
Long Island
ive been using three short cylinder to case bolts i removed from my ski when i installed a girdled head... they work great and dont rust like FP junk bolts.
 

2lick

Brap!!!
Location
Limerick, PA
ive been using three short cylinder to case bolts i removed from my ski when i installed a girdled head... they work great and dont rust like FP junk bolts.

yes these are the right size (M10 1.25) but.....

3 shortest are:
45 with 21 of threads
50 with 23 of threads
50 with 23 of threads

Id just buy the right stuff
 

2lick

Brap!!!
Location
Limerick, PA
i thought the exhaust bolts were m8? or do you mean from a stock exhaust pipe.

i bet i have those, i know i got to have three case bolts

charlie is your avatar inhaling or is your ski shotgunning someone

exhaust manifold bolts are M8 1.25 x 30 and 40 on a 61x cylinder

they may be bigger on the 62t, i think because arent the b pipe manifolds different....
 
Top Bottom