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black panther 2002
Joined: 20 Jul 2005
Posts: 8
Location: London, UK
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 Posted: Tue Jul 26, 2005 1:42 pm Post subject: gearbox problems??? |
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| hey there, just joined the forum and have found some very helpful hints and tips thus far. most of my questions that i had have been answered save one. i have a 2002 black panther with 11000km on the clock. changing gears, first to second, the gear keeps jumping into neutral. this is quite irritating and dangerous. does anyone know what the problem could be? in desperate need of an answer. |
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DEmark
Joined: 30 Dec 2003
Posts: 218
Location: Maryland USA
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| Posted: Tue Jul 26, 2005 3:00 pm Post subject: |
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| My '03 Baghira will pop out of 2nd occasionally too. Adjusting the lever a little lower helped, but it's still a little sloppier than it should be. The transmission in my Skorpion worked better. If I had a spare bike to ride when it was down, and a close dealer, I would see if I could get it fixed under warranty. In all likelyhood, I will just ride it till it breaks..... |
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keithcross
Joined: 20 May 2004
Posts: 870
Location: Hampshire England
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| Posted: Tue Jul 26, 2005 5:03 pm Post subject: |
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This problem is not unheard of. One bike I know of had to have second gear replaced. He did do a lot of second gear wheelies though.
Bike magazine also listed this a a potential problem on its secondhand pages a few years ago. This was for the SZR660 Yamaha that was sold for a while in the UK. SAme engine/gearbox unit though
I have never experienced it in 50,000 kms.
Keith
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Ride it like you stole it |
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DEmark
Joined: 30 Dec 2003
Posts: 218
Location: Maryland USA
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| Posted: Tue Jul 26, 2005 5:38 pm Post subject: |
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| I have no doubt that 2nd gear wheelies was a contributing factor in my case......I just hope it doesn't fail while in am in Mexico..... |
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phlat65
Moderator
Joined: 13 Nov 2003
Posts: 703
Location: Seattle
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| Posted: Tue Jul 26, 2005 8:01 pm Post subject: |
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mine will go into neutral from 2nd only on a speed shift at WOT. has done it since new. you just have to make sure to fully engage 2nd.
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2001 MZ Black Panther
2001 Suzuki RM125 (full Enduro)
Old Hondas- TT500 Ascott, 305 Dream Touring |
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boysie
Joined: 20 Jul 2004
Posts: 44
Location: Purbrook, UK
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| Posted: Sat Jul 30, 2005 1:59 am Post subject: |
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| Fitted a taller 1st gear to mine, and that has helped as the jump is obviously smaller,,, but it's still a slow change |
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keithcross
Joined: 20 May 2004
Posts: 870
Location: Hampshire England
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| Posted: Sat Jul 30, 2005 4:34 am Post subject: |
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| boysie wrote: | | Fitted a taller 1st gear to mine, and that has helped as the jump is obviously smaller,,, but it's still a slow change |
So thats why I beat you off the line at the drag meet then. Slow gear changes. Must admit though, once rolloing you baggi with the tuned engine left me for dead.
Keith
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boysie
Joined: 20 Jul 2004
Posts: 44
Location: Purbrook, UK
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| Posted: Sat Jul 30, 2005 8:57 am Post subject: |
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| Keith, me getting off the line slowly is no fault of the bike, just me day dreaming...... now what should we have for tea anyway!!! |
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DAVID THOMPSON
Joined: 23 Nov 2003
Posts: 1118
Location: Parkersburg, West Virginia usa .You know the PARTS have been SHIPPED when the MAIL MAN knocks
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Garf
Joined: 06 Jul 2005
Posts: 92
Location: Manchester, UK.
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| Posted: Tue Aug 02, 2005 3:31 am Post subject: |
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Yep, mine sometimes jumps out of second when changing up. I am now just more 'positive' with the shift . Also found that if I put off adjusting the chain and let it get a bit too slack this exasperates the problem.
Boysie what is the mod for the taller first gear ?.....the first /second gap (chasm !!) is a bit of a nuisance.
I know some people alter the final drive ratio by dropping a tooth off the front sprocket but I dont think I could live with that as I feel 1st is already too low.
Did Phlat post somewere saying he added a tooth to the front sprocket? I reckon this would probably make 1st more useful / useable but wonder whether it dulls the performance significantly in the higher gears. 1 to 2 gap would still be an issue though.
Cheers
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boysie
Joined: 20 Jul 2004
Posts: 44
Location: Purbrook, UK
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| Posted: Tue Aug 02, 2005 12:40 pm Post subject: |
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| Hi Garf, the tall first gear was just one of the mods that was done while the crank was re-built,, it's not that expensive to do [apart from stipping the motor] and makes for a much more usefull gear ratio, I also have slightly taller gearing, 15/42.. |
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Garf
Joined: 06 Jul 2005
Posts: 92
Location: Manchester, UK.
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| Posted: Wed Aug 03, 2005 3:26 am Post subject: |
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Boysie, was taller first something you sorted yourself using existing Yamaha parts or was it left in the hands of the engine builder ?
You are pulling taller overall gearing with a heavily modded motor (I think I have read that elsewhere on the board) but what are your thoughts on final drive ratio running the standard motor fitted with M4 can and dynojet ?
Unfortunately engine mods etc will have to wait (probably for a long time !!). My next expenditure will be on upgrading the front brake and possibly having the forks rebuilt by a suspension specialist to suit my riding style ........incompetant and ragged !!. I already find the forks bottom too readily with the standard brake and anticipate things will be worse with a 6 potter up front. Sadly the HR doesnt come with the adjustable forks.
Cheers
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boysie
Joined: 20 Jul 2004
Posts: 44
Location: Purbrook, UK
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| Posted: Wed Aug 03, 2005 12:51 pm Post subject: |
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Hi, yes it was modified by Slipstream Racing, and I think they used Yamaha parts, but don't know what they where out of, it wasnt that expensive, well not compared to the rest of the bill anyway...
I found the standard gearing was perfect for the standard motor with a pipe and jeting, mine would just hit the rev limiter in top [laying on the tank]  |
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Garf
Joined: 06 Jul 2005
Posts: 92
Location: Manchester, UK.
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| Posted: Thu Aug 04, 2005 3:38 am Post subject: |
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Yep, I bet it didnt turn out cheap !!
Having said that Slipsteam certainly have a good reputation, and as in most things in life you gets what you pays for. Fortunately, the bog standard Baggy is generally an exception to that rule 
I also feel the overall gearing is about right for the bike in its present trim but I would like to close up the 1 - 2 ratio at some point by getting the taller 1st gear.
Another one for the wish list !!
Cheers
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Garf
Joined: 06 Jul 2005
Posts: 92
Location: Manchester, UK.
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| Posted: Thu Aug 04, 2005 3:39 am Post subject: |
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Yep, I bet it didnt turn out cheap !!
Having said that Slipsteam certainly have a good reputation, and as in most things in life you gets what you pays for. Fortunately, the bog standard Baggy is generally an exception to that rule
I also feel the overall gearing is about right for the bike in its present trim but I would like to close up the 1 - 2 ratio at some point by getting the taller 1st gear.
Another one for the wish list !!
Cheers
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2002 MZ RT125+95 Saxon Tour in WV USA "I like the road less traveled if it's PAVED!."
