2007 Suzuki VZR1800: transmission slipping

Filed May 23, 2024 · Transmission · ME

During acceleration after shifting into 2nd gear the transmission slips out and then back in sometimes causing the rear wheel to spin.

Filed Feb 21, 2020 · Acceleration, Transmission · 22,000 miles · MA

Major loss of power to the ground. Mainly in second gear if I open the throttle to anything above say 20% twist of the wrist the rpms go up but bike wont gain speed while already driving. Clutch does not show signs of burning up and all seems normal there. Ive adjusted it per suzuki's manual and followed their updated method via service bulletin the next time I made adjustment. In all gears I get this slipping sensation too where the motorcycle feel like its dragging or not picking up speed along with the rpms whenever I try to use some of the bikes strong power while already driving on the highway. This potentially can put me into a dangerous situation where I cannot pickup speed to avoid another vehicle need be and plus it just plain old takes the confidence and fun out of riding this machine I spent a lot of hard earned money on. Shifting into second gear is rough and difficult at times. I always shift in low RPM (4k RPM) and ease on throttle for all gears to not abuse it. The gear indicator I had installed no longer senses what gear I am in more times than not. I suspect the shift fork for second gear along with the gear itself to be badly engineered after gather info about this issue on the m109ers.com forum. Thinking the secondary drive might be worn out when I don't abuse this bike. This bike has also had a terrible "stutter" in first gear when driving from a stand still that I noticed goes away when you park the bike with the handle bars turned to the right to stand up the bike more upright (more oil gets to the clutch stack) 24000 miles on the odometer, this is the third bike I have ever purchased out of the 5 in my lifetime. Will be filing a complaint again once I have more info and documentation.

Filed Jul 23, 2018 · Transmission · 22,000 miles · OH

Tl* the contact owns a 2007 suzuki vzr1800. While driving various speeds, the second gear slipped into the neutral position. The contact stated that the failure occurred on more than one occasion. The vehicle was taken to all ohio motorsports (23361 aurora rd, cleveland, oh 44146, (440) 786- 2230) where it was diagnosed that the second gear needed to be replaced within the transmission. The contact stated that the vehicle was in the process of being repaired by the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 22,000.

Filed Dec 17, 2012 · Transmission · 11,000 miles · NJ · crash · 1 injury

Was stopped at a red light. When light turned green I went to first gear then second. While trying to go to third it slipped out of gear and a car hit me from behind.

Filed Jun 8, 2012 · Acceleration, Transmission · 4,550 miles · MD

Was on my 2007 suzuki m109r and sitting at a light I was making a left hand turn after light turned green. As I made the turn I went to shift into second gear and it went into second gear then slipped back into neutral causing me to lose my concentration and almost hitting car next to me. I am a member of the m109rider message board and have found this is a very common problem with this motorcycle http://www.m109riders.com/forums/search.php?searchid=865572 this is a serious safety issue due to it happens when a rider is starting to accelerate (possibly like me in a turn or merging into traffic) and is likely to eventually cause either a serious accident with injuries or possibly death.

Filed Mar 19, 2012 · Transmission · 23,000 miles · AZ

2007 suzuki m109r transmission failure. Second gear pops out when the throttle is about 4000+ RPM and slams back into gear. The result is a bent shift fork and rounded off gear engagement tangs (dogs). Removed the engine and transmission on my own, and replaced suspected problem parts in the transmission such as: shift forks (to updated part numbers), shift fork shafts (to solid 14mm 4140 steel rods), unercut or backcut the gears by 5 degrees (to allow positive engagement of the dogs without slipping apart). The backcutting alone could be the sole fix for suzuki, if they produced these parts like this (5 degree cut) from the factory, and solid shift shafts prevent warpage to occur and the shift forks to positively engage the dogs. Although the bike was out of warranty, and research shows that suzuki is very reluctant to even admit this is a problem, it is dangerous and costly for the owners..

Filed Jul 7, 2011 · Transmission · 6,000 miles · OH

2007 suzuki m109r le motorcycle 9300 miles 2nd gear popping out of gear when accelerating. Gear also slips while accelerating. This is due to a bent shift fork which is damaging the gear. Faulty manufacturing on the part of suzuki. Local dealer quoted around $3000 to repair. This could cause an accident or even death. Suzuki had superseded the faulty part with a new part number. This occurs everytime.

Filed Aug 25, 2010 · Transmission · 8,300 miles · OH

2007 suzuki m109r (vzr1800) le after shifting into 2nd gear, and accelerating, the motorcycle seems to be missing the gear or slipping the gear. This causes the motorcycle to shake violently and cause the rider to almost lose control. After doing research, this seems to be a known issue with these bikes for having faulty shift forks. Suzuki needs to step up and fix this issue as this can be extremely dangerous.

Filed Jul 17, 2008 · Transmission · 2,100 miles · VA

2,000 miles on the motorcycle and the clutch is slipping.