tips and help needed

[T_Shee]

starting to get cold around here so i think our riding days are counting down for the year. i am going to pull my motor apart (agian) and do some things i been thinking i should do and would like some suggestions.

 

1. i bought new 4 mil long rod hot rods crank in august. i have heard the welds arent the best on them. we have a mig welder at our shop that im pretty good with and was wondering if this is something i can do myself. anything special i need to do or know if so?

 

2. what kind of bearing should i go back with? i see the tz max load bearings are 150+ for the 2 of them. i dont do a ton or drag racing mainly lots of trails and open field and some dunes. what bearings would be recommended? would i be better off to just buy the max load bearing for the clutch side then buy another type for stator side?

 

3. is there anything i can do to my trans to help it shift a little smoother? i already have modified star but i know there are other things (without buying over ride). i have heard about cutting dogs off and also saw where jeff has a modified shift shaft. mine shifts pretty good most of the time now occasionally a little hard betweeen 3 and 4

 

motor has been running great with basically no trouble since i put it together. j i just didnt take the time to do a couple things since it was the middle of summer and now i think i will. thanks for all the suggestions

[bansheesandrider]

The crank should be TIG welded, not MIG welded. You can do the sfift shaft mod yourself, there is a thread on here about it. There is also a roller kit that has a lighter spring for the shifter. I also run Klotz Flex Drive 30 oil in my tranny, it makes it shift much better than it did with motor oil, ATF, BelRay GearSaver, or Honda tranny oil. It is a little pricey though.

[Sandfrk33]

I heard a few things that make them shift better if you are splitting the cases. I was talking to Kevin at HJR about cutting the dogs in the tranny. He said it would shift better with a higher hp motor. I've also seen a shift drum mod where they machine the end and press on a bearing. Might want to call HJR or FAST and find out some details.

[T_Shee]

thanks for the help guys. i need a new shift shaft anyway so i will call fast. his site says if you buy a shaft from him he will modify it for free. anyone have any details on cutting the dogs? seems like it would be something someone could do themselves if they knew which ones to cut. i will try some of the klotz oil also

[AWR]

the crank should be tigged with no filler.i have cut about the dogs off about a dozen trannys and it does help.shifts better spinning.i have put a bearing on the shift drum end but really could'nt tell if it helped or not.i only cut 2nd-3rd-4th-5th-just cut off every other dog.6th looks kinda iffy so i don't normally cut it.

Edited November 10, 2010 by AWR

[T_Shee]

the crank should be tigged with no filler.i have cut about the dogs off about a dozen trannys and it does help.shifts better spinning.i have put a bearing on the shift drum end but really could'nt tell if it helped or not.i only cut 2nd-3rd-4th-5th-just cut off every other dog.6th looks kinda iffy so i don't normally cut it.

 

 

cool thanks for the info.

[T_Shee]

anyone have any other info on cutting dogs? is there any negatives of doing it?

[T_Shee]

tore it apart today. i have already ordered the shift pro kit from cascade, a shift drum with bearing pressed on from ebay, and i am gonna cut every other dog on trans gears. also gonna take crank to the machine shop i use and have it welded better. anything i should tell them other than tig weld with no filler? also i think i will use the 10 ball bearings from TDR on the crank