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Re: Half a Quad, RM 250

Reply #45
On a liquid cooled bike, the thermal expansion is much less anyway.  You'll be fine retorquing three base nuts.

Now what's this first gear business? Problem with alignment on the shift star?
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Re: Half a Quad, RM 250

Reply #46
3 Base nuts didn't budge, head nuts needed a little tweek, maybe 1/16 of a turn.
 
Well, as we all know, "projects" can have hidden issues  :'( . It only shifts into second. Going pull clutch cover see if anything jumps out at me.
 
If anyone has any experience with Suki shift mechinisims, give me some tips, ideas, etc.

Re: Half a Quad, RM 250

Reply #47
Looked at parts diagrams for 85, 89, 98 rm 250 and they all have "simular" shift mechinisums. There are two pawls that engage the shift "gear", they are spring loaded. I'm hoping that maybe they're just gummed up a bit. Who knows when the oil was last changed.
 
I did take a little rip on it, Holy $hit, came up no problem  #LOL  been way to long since I've been on something like that  #DROLL

Re: Half a Quad, RM 250

Reply #48
I have experience with Zuke shifting mechanisms.  The ratcheting mechanism design on an LT SUCKS compared to the yamaha design   :-[

If it will click in an out of 2nd but not into any other gear, make sure you have the ratcheting mechanism in correctly and then remove it and run the shift drum through its paces while turning the input shaft.  Make sure that the drum is in correct.
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Re: Half a Quad, RM 250

Reply #49
Who needs first anyhow!   :-C3

Re: Half a Quad, RM 250

Reply #50
I have experience with Zuke shifting mechanisms.  The ratcheting mechanism design on an LT SUCKS compared to the yamaha design   :-[

If it will click in an out of 2nd but not into any other gear, make sure you have the ratcheting mechanism in correctly and then remove it and run the shift drum through its paces while turning the input shaft.  Make sure that the drum is in correct.

Didn't look at an LT, but did look at parts flitch of 85, 89, &95 RM and they are pretty much all the same http://www.suzukipartshouse.com/oemparts/a/suz/50d3892ef8700229982f1d58/gear-shifting
 
End of shift shaft and #8 gear, driven , have a gear like device. Problem was that they weren't "timed/indexed" properly. It was obvious soon as I pulled the clutch basket. Soon as I pulled the shaft clear of the drum gear, the drum popped into proper posistion  I:I . Bench shifted all five gears. "Tuned up" the basket while off. Filed groves out 98 %.
All this might have been a blessing in disguise as I didn't check the oil, and there wasn't much in there. Should have it back together in the morning.
 

Re: Half a Quad, RM 250

Reply #51
While I didn't have enough room to test it well, it does shift through all gears no problem.
 
Still have ice piles from plowed snow and muddier than heck, and ground is still frozen under mud.
 
 
 
:-C3

Re: Half a Quad, RM 250

Reply #52
Sweet!  Videos?  :-T3
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