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Discussion Starter #1
Have always known my bike is thirst - 94 07 model - but thought that was down to my hard riding but looking at the figures in the MPG posting I have a problem. It is running rich but the choke cable moves and when the bike is cold it does increase the revs. Conversly, when it is warm it reduces the revs. I have checked the posts on choke but really want a detailed answer regarding how to check if the choke is working properly and what to do if it is not.
Regards
 

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Born to Slide
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Take the tank off and follow the cables back to the carbs. Loosen the nut holding in a plunger and spring carefully. Take them out and inspect - be careful not to damage the plunger as it is quite fragile because it's hollow. These plungers and the hole they slide in oftern get mucky and so the stick. A good clean and a drop of oil works wonders. Do that and put it all back. Big note - for the choke to be off the plunger must be all the way in and it can only do this under it's own spring pressure hence any gunge and it stops going all the way back so choke remains partially on.

I have blanked one of mine off through a damage plunger so stuck I had to butcher it. To blank off you need to still free up the plunger and push it all the way down then find a bolt to hold it there - I am told a cliper bolt works. I had a correct size in the workshop. It is vital that the plunger is replaced if blanking as it fits properly and cover a small pilot or air hole in the side as well.
Enough detail?
 

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Born to Slide
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Is this a hard job to do as i have trouble with my choke
If you have tools and can use them it's easy but I don't know what experience you have - what is the most difficult job you have done so far on a bike or car?
 

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i will have a go tomorrow i have a honda workshop manual, with the advice you've given plus the manual and a day should be ok.
 

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Born to Slide
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When you go to take tank off you have to lift it from the back and to make it easier to remove turn off the petrol tap and remove the knob by using a longphillips screwdriver down the hole to undo the screw holding it on then pull the petrol to fuel filter pipe off at the tank end - if you don't you may find that you break the tap control ang the rubber fuel pipe on the bend will not clear the frame as it's a tight fit.

Once gifted from the back to clear the pipe you pill it backwards and out it comes.

Remember to remove the front side panels as well.

Have fun.
 

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this is what you see when you take the tank and airbox off

 

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Born to Slide
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Cheers Angelo, very detailed. and a fello guy from Wales. What part mate?
Happy to help.

I am from the Oldest Town in Wales - well that is what the sign says - Carmarthen

Hope you sort the bike out - I blanked off mine because I damaged it - works fine with this and one working well - much better in fact although I will get around to replacing the damaged plunger soon.
 

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Enthusiastic AT rider
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I think I'm pretty well qualified to comment on this subject as I've experienced the same probs. Back in November my recently acquired 94 RD07 started giving me grief and running like a pig. I had to strip it down to get at the carbs to discover that the chokes had stuck solid on the fully choked position. I could'nt remove them for love nor money! Sent the carbs away to JRS.uk.com carb specialists in Wales. Quick turnaround, cleaned carbs and removed sized plungers. I reasembled bike with new plungers and choke cable. It ran a lot better but still wasn't perfect, was still only getting 140ish miles until I had to change to reserve. Eventually took it to a local recommended mechanic. He stripped things down again, replaced my cheap ebay choke cable (unequal lengths!) with honda item, did valve timing, checked compression. Now works fine. Commuting does 185ish before reserve and 195 on a long motorway journey. Lots of people on this site say blank off the choke. However, having used my AT all winter I know for a fact that it would have killed the battery as it needs the choke in the cold. I don't thrash it, but I don't ride ride like a saint. Right now I'm lovin it!!
 

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I checked out my choke plungers one is fixed solid and their she'll stay the other is fine, i managed to get the tickover to normal just got to remember leave the choke alone. Thanks for all your help appreciated , looked at me plugs as well they were as black as old king coal as me mom used to say (bless her) i hope thats pc cheers again.
 

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Born to Slide
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The only problem with that strategy is how do you know the plunger is all the way it thereby on the choke off position - it could be jammed slightly on - I would get it out - carb off and lots of WD40 soaked overnight etc
 

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Your a hardman you are, i thought id done good nevermind your right, thats another job for another day cheers thanks for your help, next job paint the engine i'll ride her a bit first.
 
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