Hi,

I bought a 95 cbr 1000 in may. I brought it to a honda shop and had them go through it and they cleaned the carbs and synced them, changed oil+plugs, and did some other minor things. The bike has been running great...
This past weekend, after riding for a hour I parked the bike for 15 minutes and then started it back up. It started no problem with no choke as usual. But when I put it in gear and gave it gas, it stuttered and just wouldnt go. I let it sit idling for a couple of minutes and tried again and everything was fine. This happened a couple of times this weekend and has never happened before. Any ideas?

Thanks!

 

Maybe some crud in the fuel system which moved around and caused some minor malfunction. These old bikes sometimes have that happen.
Put some seafoam in the tank and see if it happens again - if so, let us know.

 

Hi,

This was my second tank of gas (in a row) where I added seafoam to the gas. I used 1 oz per gallon. Ive been using the good (92-93 octane) gas too. The tank was about empty when I noticed this issue. The engine was pretty hot when I stopped and it had been pretty hot this past weekend. I will see how it runs this coming weekend.

 

Thanks! I rode to work this morning which is about a hour ride with no problems. Though I didnt have to do any warm starts. The front sprocket will be switched out for a 16T one tomorrow. I will see how she runs more tomorrow...

 

I didnt have the problem this weekend. The conditions were not exactly the same but everything seemed ok. I went down a tooth to 16T on the front sprocket. I cant say I notice a huge difference but I can tell the gearing is a little different. I havent popped any wheelies or anything while switching gears or while getting on it in first.....

 

I've had a similar issue for a while now.

It only does it after sitting for an hour + in 90 degree heat.... in the sun. It will start and idle fine, but will die under load like it's losing fuel (usually about 150ft down the road ...lol)

Doesn't matter if I pop the fuel cap to release vacuum, either.
I have no idea what it is, but it pisses me off. Prolly does it 3 times a year in the summer. If anyone figures it out, I'd love to know.

 

kilgoretrout,
Thats about the right conditions for mine to do it. It was 90+ and I had ridden the bike for a time before parking it for a little bit. The problem seems to clear up after a longer idle. I didnt know it was happening until I was trying to pull out of my driveway. Luckily there were no cars coming.

 

I hear ya, man. Mine doesn't seem to matter if I warm it up for a while. I've let it idle for about 5 mins thinking it would help.... even revved it quite a bit.. and it still died on me the other week. Seems like it may be petcock diaphragm related? I don't know, but it's strange.... and annoying.