fcr main jets

steve speed · Post by **steve speed** » Sat Sep 20, 2008 8:48 pm

what is every one using size wise for the main jet ?? i think mine is a bit lean ,,,i went for a long ride today and on WOT when you throttle back about a quarter it picks up so i am thinking its a bit lean it has ram air pod filters on and a big bore exhaust and quill T3 cans done a search and some are bigger and some smaller main jets

main jet is 155 at the moment is there some settings for a std motor ??? HELP !!! O and they are 41s

dillthedog · Post by **dillthedog** » Sat Sep 20, 2008 9:52 pm

i have 160 mains

honkdawillydahonk · Post by **honkdawillydahonk** » Sun Sep 21, 2008 7:59 am

I'm on 170s with foam filters.... And I was on about 148s with the (modded) airbox. 155 sound about right.

steve speed · Post by **steve speed** » Sun Sep 21, 2008 9:36 am

i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean

where,s the best place to get some more jets ?

Killerwhale · Post by **Killerwhale** » Sun Sep 21, 2008 12:04 pm

steve speed wrote:i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean where,s the best place to get some more jets ?

I buy all carb related stuff from allens performance (steve)
You can also drill them out, Keihins numbers are mm....155=1,55mm

steve speed · Post by **steve speed** » Sun Sep 21, 2008 1:06 pm

thanks to all that replied to this and the pm,s ,,,,iam going to give alans a ring see if they have any recommendations

Killerwhale · Post by **Killerwhale** » Sun Sep 21, 2008 3:30 pm

steve speed wrote:thanks to all that replied to this and the pm,s ,,,,iam going to give alans a ring see if they have any recommendations

They also make velocity stacks wich has a bulge over the main air jet/air screw to keep crud out of the carbs/engine.
All their aftermarket stuff is 20Â£/pc....super service although Steve made a "ohh, what was i thinking" once...

Post by **phuk72** » Sun Sep 21, 2008 4:44 pm

honkdawillydahonk wrote:I'm on 170s with foam filters.... And I was on about 148s with the (modded) airbox. 155 sound about right.

Blimey - I'm on 158s with K&N pods

honkdawillydahonk · Post by **honkdawillydahonk** » Sun Sep 21, 2008 5:36 pm

steve speed wrote:i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean where,s the best place to get some more jets ?

Ooops. Wasn't really paying attention... Does it go better on choke out of interest?

Got my jets from Allens. Bit pricey though..... About Â£12 a pair!

Kayla · Post by **Kayla** » Sun Sep 21, 2008 5:46 pm

honkdawillydahonk wrote:
steve speed wrote:i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean where,s the best place to get some more jets ?
Ooops. Wasn't really paying attention... Does it go better on choke out of interest?

Got my jets from Allens. Bit pricey though..... About Â£12 a pair!

Cheaper than a holed piston though

honkdawillydahonk · Post by **honkdawillydahonk** » Sun Sep 21, 2008 5:50 pm

Kayla wrote:
honkdawillydahonk wrote:
steve speed wrote:i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean where,s the best place to get some more jets ?
Ooops. Wasn't really paying attention... Does it go better on choke out of interest?

Got my jets from Allens. Bit pricey though..... About Â£12 a pair!
Cheaper than a holed piston though

It's not exactly a FSIE....

Post by **phuk72** » Sun Sep 21, 2008 6:41 pm

honkdawillydahonk wrote:
steve speed wrote:i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean where,s the best place to get some more jets ?
Ooops. Wasn't really paying attention... Does it go better on choke out of interest?

Got my jets from Allens. Bit pricey though..... About Â£12 a pair!

Choke on FCR41s?

Greg · Post by **Greg** » Sun Sep 21, 2008 7:03 pm

If you need FCR jets cheapish, Alex at: smebike@ihug.co.nz has supplied all of mine at about Â£6.00 per pair delivered from NZ - everything I've ordered has arrived withing 5 days..Top Bloke!

G

honkdawillydahonk · Post by **honkdawillydahonk** » Sun Sep 21, 2008 8:20 pm

phuk72 wrote:
honkdawillydahonk wrote:
steve speed wrote:i cant see how 155 can be right because as i said as you roll the throttle back from full it picks up so to me thats lean where,s the best place to get some more jets ?
Ooops. Wasn't really paying attention... Does it go better on choke out of interest?

Got my jets from Allens. Bit pricey though..... About Â£12 a pair!
Choke on FCR41s?

Road ones have a choke don't they?

Post by **phuk72** » Mon Sep 22, 2008 8:02 am

honkdawillydahonk wrote: Road ones have a choke don't they?

Dunno? Not seen any with a choke?

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