Cali 86 700 with half emissions equipment (and a bad tune?)

I finally received my service manual, and in going over the bike with it, I've determined that major chunks of the emissions equipment are just missing, but not all of it.

It looks like someone tried to remove the equipment, but didn't know what the whole system was (or how it functions).

The air pump and the cansiter are gone, but the vacuum lines and control valves are both still present, and the lines are hanging loose in a couple places (canister line especially). The air-pump lines to the exhaust heads are missing, and the ports on heads have been closed off.

Has anyone here just pulled all the cali-specific emissions equipment to make the bike as they shipped for the rest of the country?

I'm thinking this is part of the reason it runs so rich (it also has supertrapps and has been rejetted and possibly recammed). After I ride I just reek of unburnt fuel. I expect that when I'm warming up the bike, with the choke on, but once the bike is warm, it shouldn't still run that rich. My wife's Hawk doesn't at all, for instance.

I suspect that when the supertrapps were added and the emissions equipment screwed with, the bike was richened to make more top-end power (to accomodate the supertrapps extra flow). However, I think it might have been taken a bit too far, or it's optimized for full-throttle at high rpms, and I'm rarely over 8K (still getting a feel for the bike, and working on my skills, no need to try to deal with that much power), and rarely at full throttle (not sure where full throttle *is* yet, when riding).

 

No-one has any info on this stuff?

 

Well, I have no first hand experience of this, but I have heard that it's bad juju to try to remove the emissions stuff from these bikes. There's more to it than just some extra hoses and a charcoal canister; IIRC the carbs themselves are different, so just doing the canister-ectomy will make the bike run like crap. You may need to find some 49-state carbs, or else find the parts to put the emissions stuff back on there.

The person to talk to about this would be Dave Dodge at drp123.com, he would actually know this stuff. I'm just repeating hearsay.

 

A canister sucks vapor back into the carbs to be used. The rest is bad. But the O2 sensor keeps the fuel mixture right. That should still be on there if its fuel injected.

 

It's a 1986 bike, it's lucky to have electronic ignition controls, I think (the existence of that surprised me). It just has carbs, which are a new thing for me (every vehicle I've owned has been FI, until now).

 

Thanks, that was what I was looking for. I know on some vehicles, removing the emissions stuff is pretty simple, on others it's just not possible. When my wife bought her Hawk, the previous owner handed her a box with all the emissions stuff, the original exhaust, original front springs, etc. all in it.

That's all long gone on this bike.

I'll see if I can contact Dave Doge. Thanks!

 

After some digging on a couple different fiche sites, I was able to confirm that there's two sets of carbs for the 86 700s. The Cali models, and the rest of the country models.

Great.

www.mrcycle.com has the canister for $170... which is painful. Especially when I need to replace the R/R as well.

 

If your bike came with a canister you may be able to get by without it. Just plug the hole coming off you tank and you won't loose the vapor. Take it all off I say. Its unnatural to have the emissions stuff on a bike anyway.