-
Similar Topics
-
By hisun junk
As I tried to do a conversion with the Yamaha 660 motor, I realized the 660 was never fuel injected so it would not work for the fuel injected hisun motor swap. But the good thing is the hisun 750 motor is a clone of the 660 Yamaha but with the components for the fuel injection (cam/crank position sensor). So that left me with a new rebuilt Yamaha 660 and still a broke 750 hisun motor. I took apart 750 think the timing chain had broke from all that I've heard about these motors. The chain was not broke, but just off cam and crank gears! The chain tensioner was at fault! I've ordered Yamaha 660 replacement parts, chain, two exhaust valves (which got bent when chain came off while motor was spinning) and seals. The piston has 2 little nicks where it had hit valves but no damage otherwise. The head is being redone at the machine shop and I'll be putting it back together in the next couple of weeks. Also I finally tracked down a Service Manual with all the info on the 550/750 Challenger.
-
By Jacob E freeman
I have a 2018 cub cadet challenger 750 I bought brand new almost 2 years ago the first month I had it the exhaust broke and burnt the spark plug wire in two that was a recall so the dealership installed the new one it had a different design and it bolted up to the bottom two plugs below the spark plug the dealership said they had to Adjust the exhaust valves I get the machine back thanking everything is good now wrong not even a week after I get it back the timing chain tensioner comes apart inside the motor I take it back to the dealership They put one on I get the machine back thanking everything is good but then just like before not even a week goes by when I was riding the Machine automatically quits going come to find out the wet clutch was burned up the primary clutch head stripped off of the splines I get that fixed and then it overheats I take it back they bleed the air out of the coolant they bring it back to me the same day that I get it back it overheats again I take it back they temporarily fix it again just enough to let the warranty run out and now the machine has been to multiple different mechanics I have had them try to bleed the air out they have stood it up on its end I have had the water pump changed I have had the fan hooked to a switch so I could leave it on all the time but still almost 2 years later not even 200 hours on the machine and I cannot ride it The dealership will not take it back as a lemon I have tried I am at my wits end I have no clue what to try next
-
By Gerald Mohs
Have a 2023 massiso T-boss 750 stopped one day and won't start. I've checked the fuel injector and has good spray. New spark and has spark. Need advice on getting the trouble codes. What code reader do I need to purchase? Thanks for any help. Jerry
-
By Gary T
I generally use my challenger for light duty misc. use, and for plowing. The one thing I dislike about this machine is the difficulty in shifting. I've had it the shop and they adjusted the shifting lever, but I still have issues. Some times it shifts ok, but the problem is it is hard to get it to move the lever from high to reverse or low to high or from any gear to the other. Seems I always have to accelerate a little to get it to engage to what gear I need it to go to. This is definitely not normal.
-
By Fishing Wiskers
Top speed is 30mph on flat grass ground. but it will not go up minor hills forward or reverse without a runing start. If you start at the bottom of the hill machine will stop about 1/2 way up. I have the engine cover off and you can see the outside of the drive clutch will stop spining., and the engine does bogg down some. Dosent matter if engine is cold or warmed up. Seat belts are connected. Fuel is clean
I am the 5th shop to look at it and different shops have replaced the fuel pump, injector, ign coil, wet clutch,
I am not sure how to check for codes with this machine, can anyone teall me how to do it?
Compression with hot eng is 145, valves adjusted to .005 with a cold engine. Dash shows 426 hours
I am not convinced it's an engine problem
-
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now