Author Topic: Difference between RM 370A and RM 250A muffler diameter  (Read 1697 times)

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Offline Husabergpete

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Difference between RM 370A and RM 250A muffler diameter
« on: December 08, 2013, 03:57:56 pm »
Gents,

Can you guys help with the difference in the diameter of the stinger or the inlet of the original muffler/spark arrestor for the 370/250 A models or are they the same?

Ta Pete
KTM 250 1980,  Maico 250 AW 1977, Husqvarna CR 430 1981, , CZ 250 1973 and a 550 Husaberg

Offline Davey Crocket

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Re: Difference between RM 370A and RM 250A muffler diameter
« Reply #1 on: December 08, 2013, 04:33:37 pm »
250A is small, 370A is way bigger, I will measure later.
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Offline Husabergpete

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Re: Difference between RM 370A and RM 250A muffler diameter
« Reply #2 on: December 08, 2013, 06:14:50 pm »
Thanks for that.

Pete
KTM 250 1980,  Maico 250 AW 1977, Husqvarna CR 430 1981, , CZ 250 1973 and a 550 Husaberg

Offline Ted

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Re: Difference between RM 370A and RM 250A muffler diameter
« Reply #3 on: December 08, 2013, 10:49:00 pm »
250A is small, 370A is way bigger, I will measure later.

Some ground breaking technology going on there. Is that factory speak ?
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Offline GMC

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Re: Difference between RM 370A and RM 250A muffler diameter
« Reply #4 on: December 08, 2013, 11:14:36 pm »
Is that factory speak ?

Sure is ;D

I will try to remember to check my workshop notes tomorrow
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Offline Husabergpete

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Re: Difference between RM 370A and RM 250A muffler diameter
« Reply #5 on: December 10, 2013, 06:56:41 pm »
Gents

Is way bigger around 33mm and way smaller around 25mm.


Just a guess cause the one I have is around that 33mm dia.

ta

Pete
KTM 250 1980,  Maico 250 AW 1977, Husqvarna CR 430 1981, , CZ 250 1973 and a 550 Husaberg