H1B has different baffle than H1/A with
smaller opening.
H1/A and H1B are two piece. Later
years are one piece and not interchangeable with early.
Baffle for H1B is similar to late baffle shown.
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Rick, I have a question on the late H1 exhaust systems (73-76).
I noticed each year is slightly different.
H1d - has front mounting tabs, solid rear mounts, center pipe has extra rear tab that bolts to the right pipe. Front mounting flanges are smooth & have the small holes. No stamped markings.
H1e - front mounts eliminated, rear mounts have rubber inserts. Flanges have
large holes & have a rough finish.
Stamped "KHI 500 H1"
H1f - stamped "KHI 500 H1 DGM 13127S" (this same number appers on the air
cleaner & snorkle)
KH500 - stamped "76 KHI 500 H1" has an inside coating to reduce noise.
Then there are 74-76 style pipes with no stamped markings. I assume they are replacement pipes.
Is this info correct ?
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RB:
That's about the score on it Ed, you will also notice that most of the H1d
pipes have a thinner flange where they enter the cylinder - - But I just checked
2 NOS H1d Right pipes and one has a mainstand buffer locator and the other
doesn't.
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