H1A Airbox....

[garry,l]

My UK H1A doesn't have a trumpet/silencer on the top of the airbox. Will this be the same as the later H1's or a different design?. and of course are they available?.

Thanks in advance.

Garry.

[BIG H]

I recall RB saying that the UK early H1`s had a rubber doughnut on the airbox inlet & is extremely hard to find.

[Eric]

That`s correct it had a rubber doughnut.

[Neil the Don]

And they run absolutely fine without them fitted .

[garry,l]

Cheers People.

Anyone know what this doughnut looks like and if it's Jam or Cream?....

[BIG H]

Cheers People.

Anyone know what this doughnut looks like and if it's Jam or Cream?....

Ask RB, he put a picture of one on F/book a few months back.

[Nigel S]

And they run absolutely fine without them fitted .

I thought the same until just recently. My H2C has run without snorkel since I bought it. After fitting Ivans jet kit and jetted for standard airbox set up, I thought try it with snorkel on see what happens.

Oh my God. Clocked flat out at 117 mph by a ducati 1098. The guy claimed that he was having trouble keeping with me. Must admit thought I was doing 95 to 105 on my speedo.

So sorry guys converted to snorkel. Could be Ivans as well though.

[husson73]

snorkel is an other story even if usuallu it doesn't make a real difference

[Eric]

Wouldn`t think it would make much if any difference , it`s not a snorkel just a glorified rubber ring.

[Neil the Don]

And they run absolutely fine without them fitted .

I thought the same until just recently. My H2C has run without snorkel since I bought it. After fitting Ivans jet kit and jetted for standard airbox set up, I thought try it with snorkel on see what happens.

Oh my God. Clocked flat out at 117 mph by a ducati 1098. The guy claimed that he was having trouble keeping with me. Must admit thought I was doing 95 to 105 on my speedo.

So sorry guys converted to snorkel. Could be Ivans as well though.

Yeah , fit a snorkel to restrict the air intake , and whoosh. Off you go . Instant speed !!!

Nothing to do with fitting new unworn. Carb parts. With an improved 5 step needle letting motor pull more precisely through rev range. It'll definitely be that strangulation device. That fixed it.

Try running with the baffles out next. Even faste , must be because it's louder. !!!

[garry,l]

Well, after searching the internet and pretty much every Triple parts resource I could think of I managed to find the above Doughnut......I just took off the airbox to paint it, and there it was wedged against the battery box!.

[Pierrot974]

Hi
11016-003 is the ref of silencer.
92081-063 for the spring

[scouse]

If you don't have the rubber silencer then I would advise upping the main jet to 100 as per the US spec, that is of course any of you sit at 80 plus for any length of time

Gary T

[gary62]

Don't know what all the fuss is about just use your wife's cutlery collinder my H1A just loves it

[gary62]

Ok it pissed her off when she found out it was missing