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Author Topic: CR/WR 400 jetting  (Read 1941 times)

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Expat

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CR/WR 400 jetting
« on: June 15, 2009, 08:43:33 pm »
Hi, can somebody please advise the correct standard jetting for "74 CR/WR400 Husky?

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Offline GD66

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Re: CR/WR 400 jetting
« Reply #1 on: June 15, 2009, 09:09:08 pm »
The notes in the back of my WR400 manual indicate main jet sizes between 170 and 200, this of course is for the dreaded Bing. Does this mean the GP360 has been parked ?
« Last Edit: June 15, 2009, 09:10:43 pm by GD66 »
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Nostalgia's not what it used to be....

husky61

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Re: CR/WR 400 jetting
« Reply #2 on: June 16, 2009, 09:17:35 am »
CR or WR

Bing or Mikuni
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kristan

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Re: CR/WR 400 jetting
« Reply #3 on: June 16, 2009, 11:10:43 am »
from experience, I would junk the bing if you have one and go with the mikuni. Otherwise you will constantly be re jetting, especially the needle jet.
I used a delorto on my bike and it was great, changed the main once to crisp it back up.
Kris
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Expat

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Re: CR/WR 400 jetting
« Reply #4 on: June 16, 2009, 04:09:42 pm »
Nope GP360 is not retired GD66 ... going out in 2 weeks time to battle the modern 4 stroke stuff...... ;D....another variation of  putting a smile on my dial.

I think it's a WR400..6 speed, has newish Bing......unsure of current jetting inside, carbration needs help though so am hoping to arm myself with coprrect std spec before pulling things apart.

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Offline HuskyPete

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Re: CR/WR 400 jetting
« Reply #5 on: June 16, 2009, 04:31:45 pm »
Vintage Husky Jetting for 400 with Bing
160 Main jet
45 pilot jet
2.85 jet needle
clip in bottom position on needle jet
# 1 slide
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1967 360 Viking, 1969 360 Cross, 1974 250 Mag x 3, 1974 400 Cross x 1, 1974 450 WR, 1975 250GP, 1976 250 WR, 1978 390 Auto, 1982.5 500 Gold Bullet. 1976 390 OR, 78 CCM

Offline jimbo

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Re: CR/WR 400 jetting
« Reply #6 on: June 16, 2009, 08:54:34 pm »
Of all the Huskies I have raced the 73/4/5 new generation engines are  the least senitive to jetting changes [ in Victoria anyway @ alttitude or sea level/ COLD , HUMID OR DRY] 67 HUSKY IS ON THE MONEY  ! however  I use a 170 main set on the middle clip ,a 35 idle ,and a 2,85 needle jet  30;1 caster based  98 oct fuel and non resister S 8/9 plugs anything else is a waste of money  Note this setup is for a 5 speed cr  on the wr 6 speed I too use a Mikuni. Regards Jimbo
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Expat

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Re: CR/WR 400 jetting
« Reply #7 on: June 16, 2009, 09:07:06 pm »
Thank you gentlemen....priceless information.

Will have a look inside carby on weekend.

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