Jet kits

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Jet kits

Postby boomtank » Tue Aug 25, 2015 1:02 am

Found a site with decent priced kits. Wasn't sure where to put the post.

http://carbjetkits.com/honda-jet-kits/h ... -1990.html

Thinking about a stage two kit, but not sure if its worth the hassle on another carb teardown :|

Any thoughts?
Keep the rubber side down out there ;)
Speed never hurt anyone. It's the sudden stop at the end that does :o

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Re: Jet kits

Postby John Hilmer » Tue Aug 25, 2015 5:49 am

Boom,

I wouldn't go that way unless you have indications that the engine is running lean.

I've also found some after market jet aren't as good quality wise.

John
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Re: Jet kits

Postby spotthedogg » Mon Aug 31, 2015 1:23 pm

I think they use Keihin jets and just supply a few sizes, in my experience at sea level two washers under the needles and 120 or 122 mains ran real well. I now have a Factory Pro jet kit in with adjustable needles and 125 mains. I have been running the unmodified airbox with a gutted snorkel (I just left a hood to deflect rain) and a stock panel filter with hand cut UNI foam element.

Anyway, like John said if you don't have many mods the factory usually gets it right.
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Re: Jet kits

Postby boomtank » Thu Sep 03, 2015 12:14 am

Thanks for the replys guys. I was just looking for a way to get a bit of low and mid range boost and a smoother rpm gain. Maybe I'll try adjusting sprockets. Seems like less trouble overall.

I'll have to look at my old magazines again. I remember in one of them had extra light gears and chain deals for a decent price.
Keep the rubber side down out there ;)
Speed never hurt anyone. It's the sudden stop at the end that does :o

1988 Honda VTR250 interceptor
(aka the bottle rocket)
boomtank
 
Posts: 94
Joined: Sun Nov 09, 2014 11:08 pm
Location: St. Louis, MO

Re: Jet kits

Postby cawalther » Thu Sep 03, 2015 6:04 am

I remember LDH said he wanted a company to make him a custom size... 116.5? because he just wasn't happy with 116 or 117 and that he found in between those would have been the best size main jet. It's been some time since we talked about it so I hope my recollection is correct. His name on here now is ... squidshady? I think he had 8 holes in the airbox and maybe some other mods.. most likely an exhaust can and snorkelectomy.

ooh.. and from what I recall, they refused to make it! haha. oh well.
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Re: Jet kits

Postby spotthedogg » Wed Aug 16, 2017 5:37 pm

Interesting, jets don't seem to come in single steps like 115/126/117 rather 115/118/122/125 IIRC
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Re: Jet kits

Postby boomtank » Wed Aug 16, 2017 5:59 pm

So after a bit of researching I have found this info:

Jets
----------| Main | Slow | Shims | Mods
Stock | 115 | 35 | 1 | None
Stage 1 | 118 | 38 | 1 | None
Stage 2 | 120 | 38 | 2 | Stock exhaust / Light airbox mods
Stage 3 | 122 | 38 | 2 | Light exhaust mod/ Light airbox mod
Stage 4 | 125 | 40 | 2 | Light exhaust mod / Heavy airbox mods
Stage 5 | 128 | 40 | 2 | Heavy exhaust and airbox mods
Racing | 130+ | 42+ | 2+ | Full racing mods

These settings are for sea level.

Hope this helps someone else.
Keep the rubber side down out there ;)
Speed never hurt anyone. It's the sudden stop at the end that does :o

1988 Honda VTR250 interceptor
(aka the bottle rocket)
boomtank
 
Posts: 94
Joined: Sun Nov 09, 2014 11:08 pm
Location: St. Louis, MO


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