| Author | Message | ||
     Sarodude |
A friend's 2001 Blast has a problem. She rode it home just fine one night. Next time she rode it - it wouldn't shift properly. Long story short - the shift lever is floppy. If I shift by hand I can find all the gears. It just feels like a spring on the shift shaft stopped doing its job - but I'm not positive. Anyone have anything to contribute? I'd like a clue before I dive in. -Saro | ||
| Mikej |
That shifter detent plate and related pins are a fairly common issue. Rummage around the site here with a search for "detent" or "detent plate" for a preview. Don't know if this is it though. | ||
| Blastin |
Saro, If you can recall my shifting/secondary clunk after clutch release/can't find neutral problem from ~May. It turns out the screw on the detent plate backed out. (I ran out of time and patience and brought it in) They removed the primary cover and discovered the loose screw. Applied Loc-tite and tightened. The shift pedal wasn't overly floppy but did FEEL less crisp then ordinary. Do you have the shop manual? Take a look at the shift linkage diagrams and see what looks plausabile. My bike was pretty much the same way. Out riding no problems at all. Then came up to a stop sign and had some trouble shifting down. Can you find nuetral? Finding nuetral was very difficult for me. Jerry | ||
| Mikej |
Here's some good pics that Hoser/Jeff posted this year. Different bike, same area (ignore the fact that it shows a removable tranny and just look at the detent plate parts). http://www.badweatherbikers.com/cgibin/discus/show.cgi?tpc=3842&post=155425#POST 155425 | ||
| Sarodude |
I can do anything I want by hand. It requires feel to find the gears. The shifter is TOTALLY floppy. It rests at the bottom of the usual shifter throw. My first thought was a detent issue. Then I kinda jumped on this spring thing. I'll troll through the archives and see what pops up for the detent plate. Thanks for the input. Keep it coming! -Saro | ||
| Reepicheep |
Saro. Sounds to me like you nailed it. Either the spring is sprung, or some other coupling part has popped off and no longer provides tension. There is definitely a spring that provides the tension to keep the shift lever in the middle of its normal range of motion (though to be effective the detent plate must be intact). As I recall, it works by tensioning a lever, that has a roller on the end of it. This roller is pulled by the spring into the valleys of the detent plate. If the detent plate is popped off or badly askew, or if the spring is no longer providing tension, then you would see exactly what you are describing. Should be obvious with the primary cover off, which is an easy job on the tube framer, not sure about the blast. | ||
| Sarodude |
When I went to look at the bike the first question I asked was if it had been knocked over since she last rode it. Well, she did some digging and it turns out that it did indeed get knocked over by someone else in her household. Not sure if this changes the complexion of this. I hope to yank the primary cover over the weekend and have a looksee. We'll know more then. -Saro | ||
| Sarodude |
Got into that Primary today. There's a spring between the shift shaft and the shifter pawl - right on the shift shaft. Part #34481-01A. A piece of that spring was laying at the bottom of the primary case. Funny thing is that this particular spring is NOT in the service manual. It's also not in our 94 Sporty service manual. Additionally, I notice some bluing around the clutch sprocket teeth. Serious bluing around the starter ring gear. Is this normal or do I need to talk to the bike's owner? I know she has a habit of keeping the clutch pulled in even if the bike is in neutral. -Saro | ||
| Awprior |
The bluing is heat treat, it's only on the teeth since they are the only part that sees any real load. As far as the spring, I remember there being two springs associated with the shifter/detent mechanism, one on the shaft of the roller that hits the detent plate and the other on the shifter shaft. I don't have time to run home to look in the manual before I leave for WI, but I may have a chance when I get back tomorrow. Alex | ||
| Swampy |
I had a problem with one of my Blasts. I found the bolt that holds the shifter detent pawl and shift drum plate loose. Made for horrible shifting. The condition made the neutral light flicker and go out when the bike was idling in nuetral. I posted a picture in the knowlege vault, proceedures, primary chain. Hope it helps | ||
| Sarodude |
I finished the job Saturday morning. There were 2 problems in there... The immediate problem (the shifter not springing back AT ALL) was the result of the broken torsion spring that goes between the shifter shaft and the shifter pawl. Maybe I'm blind but I couldn't find ANYTHING in the manual on how this all goes together. There was a secondary issue. Just like Swampy and Blastin, the detent screw had backed out - and this is a 2001 Blast. Interesting... The bike is back together and has gone through a tank of fuel. It shifts GREAT now and has a very happy owner. I think I'm gonna pop off the primary cover on our bike next time I need to change the primary oil and make sure that screw is good and also to adjust the pawl. -Saro | ||
| Eyezak |
Do they make a heel and toe shifter for a Bell Blast, if how much and were could I purchase one of have it made cheap? |
