jet sizes

[vtrnewboy]

I have been stripping my bike down for a winter clean up and I removed the carbs and found both jets are 180's front and rear is this correct I thought it was supposed to be different in both of them and would this explain why it don't pull top gear holds back at about 140 ish

[leevtr]

I think as standard theyre the same back and front mate. As for holding back at 140 ish, tbh it wont be pulling hard at that point anyway, you're lucky to get them showing much over 155 period. 140 it will be starting to tail off, for want of a better word.

[lloydie]

You will have 180 Dyno jets fitted .
Standard are 175 and 178 .
So yours has been jetted

[leevtr]

You will have 180 Dyno jets fitted .
Standard are 175 and 178 .
So yours has been jetted

Thats where I got it from, fitting my dj kit !!

[vtrnewboy]

hum its also got a k & n fitted so properly been jetted then , ok so that's ok then 180 mains thanks for the info guys

[VTRDark]

You will have 180 Dyno jets fitted .
Standard are 175 and 178 .

+1

You may want to check the slides and see if they have the extra lift hole. If you have a full dynojet kit then the needles will also be adjustable and have 6 slots.

(:-})

[vtrnewboy]

You will have 180 Dyno jets fitted .
Standard are 175 and 178 .

+1

You may want to check the slides and see if they have the extra lift hole. If you have a full dynojet kit then the needles will also be adjustable and have 6 slots.

(:-})

3 holes in the slides and the longest spring I have ever seen must be 8 to 10 inches long and not easy to get back in is this correct

[macdee]

You will have 180 Dyno jets fitted .
Standard are 175 and 178 .

+1

You may want to check the slides and see if they have the extra lift hole. If you have a full dynojet kit then the needles will also be adjustable and have 6 slots.

(:-})

3 holes in the slides and the longest spring I have ever seen must be 8 to 10 inches long and not easy to get back in is this correct

what about the needles

[VTRDark]

Yep the longest springs you will find. When refitting, push the spring back into the centre of the cap, hold over as close as you can to the carb and let it go, being careful that the spring don't spring back out. It's simple after a few attempts. Be careful of the diaphragm rubbers. You may want to use a smear of grease to hold the edges in place as you put the spring and cap back on.

I should have said 3 holes not including the centre hole the needle goes through. As standard they should have two holes not including the centre hole. Seems to me that you have the extra lift hole drilled out as per the dynojet instructions. You may want to block this up with some epoxy resin at some stage as this wont be helping thing's. Especially if it's a UK dynojet kit where they don't supply the dynojet springs to go along with it.

How to remove needle from slide

Carb strip jetting pictures

And most importantly the link in my signature.

(:-})

[vtrnewboy]

Yep the longest springs you will find. When refitting, push the spring back into the centre of the cap, hold over as close as you can to the carb and let it go, being careful that the spring don't spring back out. It's simple after a few attempts. Be careful of the diaphragm rubbers. You may want to use a smear of grease to hold the edges in place as you put the spring and cap back on.

I should have said 3 holes not including the centre hole the needle goes through. As standard they should have two holes not including the centre hole. Seems to me that you have the extra lift hole drilled out as per the dynojet instructions. You may want to block this up with some epoxy resin at some stage as this wont be helping thing's. Especially if it's a UK dynojet kit where they don't supply the dynojet springs to go along with it.

How to remove needle from slide

Carb strip jetting pictures

And most importantly the link in my signature.



yes 3 holes plus the hole for the needle so 4 if you like lol , why is it best to close one of the holes off then
(:-})

[VTRDark]

An extra lift hole will open the slide quicker possibly over fuelling that part of the the carb circuit. This may be why your bike is bogging down at higher revs/speeds. As standard there are two lift holes dynojet install instructions require a third, but I think this is possibly only any good with the dynojet springs fitted which are shorter than the standard storm springs. Shorter springs only come with the US dynojet kit not UK. Saying that I don't know of anyone that is successfully running dynojet springs either on a VTR.

IMO dynojet are full of sh1t, it's all about marketing Following their instructions will get you nowhere fast. They just don't work with these bikes. And why sell different kits for the same bike in different parts of the world. And I'm not just talking main jet sizes.

(:-})

[fiero]

An extra lift hole will open the slide quicker possibly over fuelling that part of the the carb circuit. This may be why your bike is bogging down at higher revs/speeds. As standard there are two lift holes dynojet install instructions require a third, but I think this is possibly only any good with the dynojet springs fitted which are shorter than the standard storm springs. Shorter springs only come with the US dynojet kit not UK. Saying that I don't know of anyone that is successfully running dynojet springs either on a VTR.

IMO dynojet are full of sh1t, it's all about marketing Following their instructions will get you nowhere fast. They just don't work with these bikes. And why sell different kits for the same bike in different parts of the world. And I'm not just talking main jet sizes.

(:-})

was about to order a dynojet from states, but wondering now to proceed or not after reading your post carl
the one i thought of buying is http://www.ebay.com/itm/New-DynoJet-Jet ... 21&vxp=mtr

[Wicky]

Does your bike need it? IIRC you have different silencer cans but are they more free flowing than stock? How is it currently fueling? Have you had it on dyno to see what's happening? Has it an aftermarket washable airfilter i.e K&N or has it a factory disposable paper filter?

What do you hope to achieve by fitting a dynojet kit? a small top end boost and increased fuel consumption? esp if you have a top endrestricted import.

http://www.vtr1000.org/phpBB3/viewtopic ... 36&t=28029

See Workshop Dynochart section > http://www.vtr1000.org/phpBB3/viewforum.php?f=36

[lloydie]

Remember my bike last year made the most power last year with stock jetting /air filter/ exhaust (debaffeled )
Tho the fuel consumption wasn't as good compared to when I had race cans and a dj and k&n fitted !
About 15 mile to the tank difference .
Tho I think I could of leaned it off a touch !

[fiero]

Does your bike need it? IIRC you have different silencer cans but are they more free flowing than stock? How is it currently fueling? Have you had it on dyno to see what's happening? Has it an aftermarket washable airfilter i.e K&N or has it a factory disposable paper filter?

What do you hope to achieve by fitting a dynojet kit? a small top end boost and increased fuel consumption? esp if you have a top endrestricted import.

http://www.vtr1000.org/phpBB3/viewtopic ... 36&t=28029

See Workshop Dynochart section > http://www.vtr1000.org/phpBB3/viewforum.php?f=36

i am looking towards to increase the initial power delivery and fuel economy improvement.
bike has a k&N filters and scorpion exhaust.
have recently acquired the bike so haven't done a dyno yet.

i get were you coming to mate, would think over it after some use and understanding the bike much better